/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_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:49:45,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:49:45,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:49:45,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:49:45,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:49:45,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:49:45,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:49:45,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:49:45,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:49:45,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:49:45,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:49:45,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:49:45,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:49:45,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:49:45,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:49:45,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:49:45,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:49:45,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:49:45,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:49:45,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:49:45,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:49:45,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:49:45,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:49:45,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:49:45,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:49:45,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:49:45,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:49:45,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:49:45,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:49:45,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:49:45,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:49:45,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:49:45,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:49:45,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:49:45,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:49:45,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:49:45,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:49:45,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:49:45,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:49:45,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:49:45,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:49:45,925 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 23:49:45,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:49:45,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:49:45,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:49:45,954 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:49:45,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:49:45,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:49:45,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:49:45,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:49:45,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:49:45,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:49:45,955 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:49:45,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:49:45,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:49:45,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:49:45,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:49:45,956 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:49:45,956 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:49:45,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:49:45,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:49:45,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:49:45,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:49:45,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:49:45,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:49:46,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:49:46,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:49:46,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:49:46,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:49:46,413 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:49:46,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-10-23 23:49:46,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c70b5c17/599f3d33446647d9a30f1f5b50b0fcda/FLAG349ab273c [2020-10-23 23:49:47,221 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:49:47,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-10-23 23:49:47,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c70b5c17/599f3d33446647d9a30f1f5b50b0fcda/FLAG349ab273c [2020-10-23 23:49:47,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c70b5c17/599f3d33446647d9a30f1f5b50b0fcda [2020-10-23 23:49:47,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:49:47,458 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:49:47,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:49:47,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:49:47,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:49:47,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:49:47" (1/1) ... [2020-10-23 23:49:47,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60827b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:47, skipping insertion in model container [2020-10-23 23:49:47,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:49:47" (1/1) ... [2020-10-23 23:49:47,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:49:47,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:49:47,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:49:47,923 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:49:48,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:49:48,060 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:49:48,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48 WrapperNode [2020-10-23 23:49:48,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:49:48,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:49:48,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:49:48,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:49:48,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (1/1) ... [2020-10-23 23:49:48,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (1/1) ... [2020-10-23 23:49:48,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (1/1) ... [2020-10-23 23:49:48,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (1/1) ... [2020-10-23 23:49:48,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (1/1) ... [2020-10-23 23:49:48,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (1/1) ... [2020-10-23 23:49:48,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (1/1) ... [2020-10-23 23:49:48,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:49:48,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:49:48,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:49:48,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:49:48,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (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 23:49:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:49:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:49:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:49:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:49:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:49:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:49:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:49:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:49:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:49:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:49:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:49:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:49:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:49:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:49:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:49:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:49:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:49:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:49:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:49:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:49:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:49:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:49:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:49:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:49:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:49:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:49:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:49:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:49:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:49:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:49:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:49:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:49:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:49:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:49:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:49:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:49:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:49:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 23:49:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 23:49:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:49:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:49:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:49:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:49:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:49:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:49:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:49:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:49:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:49:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:49:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:49:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:49:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:49:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:49:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:49:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:49:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:49:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:49:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:49:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:49:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:49:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:49:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 23:49:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:49:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:49:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:49:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:49:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:49:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:49:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:49:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 23:49:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:49:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:49:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:49:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:49:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:49:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:49:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:49:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:49:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:49:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:49:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:49:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:49:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:49:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:49:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:49:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:49:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:49:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:49:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:49:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:49:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:49:48,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:49:49,997 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:49:49,997 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:49:50,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:49:50 BoogieIcfgContainer [2020-10-23 23:49:50,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:49:50,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:49:50,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:49:50,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:49:50,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:49:47" (1/3) ... [2020-10-23 23:49:50,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e9ff6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:49:50, skipping insertion in model container [2020-10-23 23:49:50,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:49:48" (2/3) ... [2020-10-23 23:49:50,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e9ff6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:49:50, skipping insertion in model container [2020-10-23 23:49:50,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:49:50" (3/3) ... [2020-10-23 23:49:50,011 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-10-23 23:49:50,024 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:49:50,032 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:49:50,046 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:49:50,084 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:49:50,084 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:49:50,085 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:49:50,085 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:49:50,085 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:49:50,085 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:49:50,085 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:49:50,086 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:49:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-10-23 23:49:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 23:49:50,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:49:50,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:49:50,134 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 23:49:50,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:49:50,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1810331735, now seen corresponding path program 1 times [2020-10-23 23:49:50,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:49:50,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641158152] [2020-10-23 23:49:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:49:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,305 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:49:51,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:49:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:49:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:49:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:49:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:49:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:49:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:49:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:49:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:51,531 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 23:49:51,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641158152] [2020-10-23 23:49:51,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:49:51,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:49:51,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82761952] [2020-10-23 23:49:51,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:49:51,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:49:51,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:49:51,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:49:51,558 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-10-23 23:49:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:49:53,819 INFO L93 Difference]: Finished difference Result 442 states and 523 transitions. [2020-10-23 23:49:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 23:49:53,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 23:49:53,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:49:53,839 INFO L225 Difference]: With dead ends: 442 [2020-10-23 23:49:53,840 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 23:49:53,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:49:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 23:49:54,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 242. [2020-10-23 23:49:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-23 23:49:54,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 261 transitions. [2020-10-23 23:49:54,020 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 261 transitions. Word has length 154 [2020-10-23 23:49:54,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:49:54,021 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 261 transitions. [2020-10-23 23:49:54,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:49:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 261 transitions. [2020-10-23 23:49:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 23:49:54,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:49:54,027 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:49:54,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:49:54,028 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 23:49:54,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:49:54,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1813123454, now seen corresponding path program 1 times [2020-10-23 23:49:54,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:49:54,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80766905] [2020-10-23 23:49:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:49:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:54,921 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:49:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:49:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:54,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:49:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:54,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:49:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:54,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:49:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:54,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:49:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:54,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:49:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:55,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 23:49:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:55,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 23:49:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:55,036 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 23:49:55,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80766905] [2020-10-23 23:49:55,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:49:55,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 23:49:55,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924774591] [2020-10-23 23:49:55,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 23:49:55,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:49:55,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 23:49:55,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:49:55,041 INFO L87 Difference]: Start difference. First operand 242 states and 261 transitions. Second operand 5 states. [2020-10-23 23:49:56,492 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:49:58,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:49:58,010 INFO L93 Difference]: Finished difference Result 368 states and 414 transitions. [2020-10-23 23:49:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 23:49:58,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 23:49:58,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:49:58,016 INFO L225 Difference]: With dead ends: 368 [2020-10-23 23:49:58,016 INFO L226 Difference]: Without dead ends: 276 [2020-10-23 23:49:58,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:49:58,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-23 23:49:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 232. [2020-10-23 23:49:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-23 23:49:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2020-10-23 23:49:58,112 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 155 [2020-10-23 23:49:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:49:58,113 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2020-10-23 23:49:58,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 23:49:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2020-10-23 23:49:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-23 23:49:58,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:49:58,116 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] [2020-10-23 23:49:58,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:49:58,117 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 23:49:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:49:58,118 INFO L82 PathProgramCache]: Analyzing trace with hash 886404485, now seen corresponding path program 1 times [2020-10-23 23:49:58,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:49:58,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598834545] [2020-10-23 23:49:58,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:49:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:58,949 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:49:58,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:49:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:49:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:49:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:49:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:49:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:49:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 23:49:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 23:49:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:49:59,179 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 23:49:59,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598834545] [2020-10-23 23:49:59,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:49:59,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:49:59,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808185384] [2020-10-23 23:49:59,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:49:59,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:49:59,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:49:59,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:49:59,182 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 10 states. [2020-10-23 23:50:00,334 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:01,245 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:50:01,998 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:50:02,751 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:03,464 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:04,160 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:06,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:06,506 INFO L93 Difference]: Finished difference Result 388 states and 440 transitions. [2020-10-23 23:50:06,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:50:06,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-23 23:50:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:06,515 INFO L225 Difference]: With dead ends: 388 [2020-10-23 23:50:06,515 INFO L226 Difference]: Without dead ends: 276 [2020-10-23 23:50:06,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:50:06,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-23 23:50:06,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 232. [2020-10-23 23:50:06,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-23 23:50:06,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 247 transitions. [2020-10-23 23:50:06,634 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 247 transitions. Word has length 164 [2020-10-23 23:50:06,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:06,636 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 247 transitions. [2020-10-23 23:50:06,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:50:06,636 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 247 transitions. [2020-10-23 23:50:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 23:50:06,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:06,639 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 23:50:06,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:50:06,640 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 23:50:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:06,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1282067418, now seen corresponding path program 1 times [2020-10-23 23:50:06,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:06,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [549012172] [2020-10-23 23:50:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,294 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:07,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:50:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 23:50:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 23:50:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:07,443 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 23:50:07,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [549012172] [2020-10-23 23:50:07,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:07,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 23:50:07,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077209108] [2020-10-23 23:50:07,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 23:50:07,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:07,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 23:50:07,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:50:07,445 INFO L87 Difference]: Start difference. First operand 232 states and 247 transitions. Second operand 7 states. [2020-10-23 23:50:08,536 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:11,376 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:50:12,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:12,534 INFO L93 Difference]: Finished difference Result 520 states and 597 transitions. [2020-10-23 23:50:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 23:50:12,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-10-23 23:50:12,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:12,539 INFO L225 Difference]: With dead ends: 520 [2020-10-23 23:50:12,539 INFO L226 Difference]: Without dead ends: 408 [2020-10-23 23:50:12,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:50:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-10-23 23:50:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 335. [2020-10-23 23:50:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-23 23:50:12,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 362 transitions. [2020-10-23 23:50:12,692 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 362 transitions. Word has length 172 [2020-10-23 23:50:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:12,693 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 362 transitions. [2020-10-23 23:50:12,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 23:50:12,693 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 362 transitions. [2020-10-23 23:50:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:50:12,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:12,696 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 23:50:12,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:50:12,697 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 23:50:12,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:12,697 INFO L82 PathProgramCache]: Analyzing trace with hash 632516204, now seen corresponding path program 1 times [2020-10-23 23:50:12,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:12,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081937276] [2020-10-23 23:50:12,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,429 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:13,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:50:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:50:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:50:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:50:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:50:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:13,780 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 23:50:13,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081937276] [2020-10-23 23:50:13,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:13,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:50:13,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890439155] [2020-10-23 23:50:13,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:50:13,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:13,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:50:13,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:50:13,783 INFO L87 Difference]: Start difference. First operand 335 states and 362 transitions. Second operand 10 states. [2020-10-23 23:50:14,936 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:16,822 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:17,543 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:50:18,254 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:50:18,942 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:19,711 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 23:50:20,451 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:23,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:23,185 INFO L93 Difference]: Finished difference Result 826 states and 977 transitions. [2020-10-23 23:50:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 23:50:23,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 23:50:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:23,197 INFO L225 Difference]: With dead ends: 826 [2020-10-23 23:50:23,197 INFO L226 Difference]: Without dead ends: 611 [2020-10-23 23:50:23,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-23 23:50:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-10-23 23:50:23,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 507. [2020-10-23 23:50:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-10-23 23:50:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 559 transitions. [2020-10-23 23:50:23,413 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 559 transitions. Word has length 196 [2020-10-23 23:50:23,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:23,414 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 559 transitions. [2020-10-23 23:50:23,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:50:23,414 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 559 transitions. [2020-10-23 23:50:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 23:50:23,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:23,417 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 23:50:23,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:50:23,418 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 23:50:23,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:23,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1531328401, now seen corresponding path program 1 times [2020-10-23 23:50:23,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:23,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513804391] [2020-10-23 23:50:23,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,131 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:24,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:50:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:50:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:50:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:50:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:50:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:24,406 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 23:50:24,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1513804391] [2020-10-23 23:50:24,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:24,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:50:24,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928229347] [2020-10-23 23:50:24,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:50:24,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:24,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:50:24,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:50:24,410 INFO L87 Difference]: Start difference. First operand 507 states and 559 transitions. Second operand 10 states. [2020-10-23 23:50:25,501 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:28,169 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:28,897 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:29,647 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:30,370 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:31,087 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:31,805 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:32,474 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:33,327 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:50:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:35,250 INFO L93 Difference]: Finished difference Result 1357 states and 1603 transitions. [2020-10-23 23:50:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 23:50:35,252 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 23:50:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:35,258 INFO L225 Difference]: With dead ends: 1357 [2020-10-23 23:50:35,259 INFO L226 Difference]: Without dead ends: 970 [2020-10-23 23:50:35,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-23 23:50:35,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-23 23:50:35,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 817. [2020-10-23 23:50:35,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2020-10-23 23:50:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 907 transitions. [2020-10-23 23:50:35,656 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 907 transitions. Word has length 196 [2020-10-23 23:50:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:35,657 INFO L481 AbstractCegarLoop]: Abstraction has 817 states and 907 transitions. [2020-10-23 23:50:35,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:50:35,657 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 907 transitions. [2020-10-23 23:50:35,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:50:35,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:35,661 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 23:50:35,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:50:35,661 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 23:50:35,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:35,662 INFO L82 PathProgramCache]: Analyzing trace with hash 761309588, now seen corresponding path program 1 times [2020-10-23 23:50:35,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:35,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854387889] [2020-10-23 23:50:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,343 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:36,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:50:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:50:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:50:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:50:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 23:50:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 23:50:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:36,573 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 23:50:36,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854387889] [2020-10-23 23:50:36,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:36,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 23:50:36,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925332328] [2020-10-23 23:50:36,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 23:50:36,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:36,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 23:50:36,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:50:36,576 INFO L87 Difference]: Start difference. First operand 817 states and 907 transitions. Second operand 11 states. [2020-10-23 23:50:37,780 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:40,555 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:41,253 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:41,896 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:50:42,673 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:43,402 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:44,182 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:50:44,914 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:45,704 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:50:47,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:47,636 INFO L93 Difference]: Finished difference Result 1789 states and 2093 transitions. [2020-10-23 23:50:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 23:50:47,637 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 201 [2020-10-23 23:50:47,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:47,650 INFO L225 Difference]: With dead ends: 1789 [2020-10-23 23:50:47,650 INFO L226 Difference]: Without dead ends: 1092 [2020-10-23 23:50:47,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2020-10-23 23:50:47,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2020-10-23 23:50:48,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 813. [2020-10-23 23:50:48,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2020-10-23 23:50:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 899 transitions. [2020-10-23 23:50:48,022 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 899 transitions. Word has length 201 [2020-10-23 23:50:48,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:48,022 INFO L481 AbstractCegarLoop]: Abstraction has 813 states and 899 transitions. [2020-10-23 23:50:48,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 23:50:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 899 transitions. [2020-10-23 23:50:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-23 23:50:48,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:48,027 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, 1] [2020-10-23 23:50:48,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:50:48,027 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 23:50:48,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:48,028 INFO L82 PathProgramCache]: Analyzing trace with hash -2035175674, now seen corresponding path program 1 times [2020-10-23 23:50:48,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:48,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166095326] [2020-10-23 23:50:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,673 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:48,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:50:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:50:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:50:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:50:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:50:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 23:50:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:48,954 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 23:50:48,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166095326] [2020-10-23 23:50:48,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:48,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 23:50:48,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228111391] [2020-10-23 23:50:48,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 23:50:48,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:48,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 23:50:48,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:50:48,956 INFO L87 Difference]: Start difference. First operand 813 states and 899 transitions. Second operand 11 states. [2020-10-23 23:50:51,304 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:50:52,061 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:50:52,807 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 23:50:53,512 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:50:54,253 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:50:54,928 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:50:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:50:57,103 INFO L93 Difference]: Finished difference Result 1807 states and 2124 transitions. [2020-10-23 23:50:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:50:57,104 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2020-10-23 23:50:57,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:50:57,112 INFO L225 Difference]: With dead ends: 1807 [2020-10-23 23:50:57,112 INFO L226 Difference]: Without dead ends: 1114 [2020-10-23 23:50:57,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 23:50:57,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2020-10-23 23:50:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 845. [2020-10-23 23:50:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2020-10-23 23:50:57,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 931 transitions. [2020-10-23 23:50:57,447 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 931 transitions. Word has length 202 [2020-10-23 23:50:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:50:57,448 INFO L481 AbstractCegarLoop]: Abstraction has 845 states and 931 transitions. [2020-10-23 23:50:57,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 23:50:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 931 transitions. [2020-10-23 23:50:57,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-23 23:50:57,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:50:57,452 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, 1] [2020-10-23 23:50:57,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:50:57,452 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 23:50:57,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:50:57,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1285921446, now seen corresponding path program 1 times [2020-10-23 23:50:57,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:50:57,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767551183] [2020-10-23 23:50:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:50:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,141 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:50:58,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:50:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:50:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:50:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:50:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:50:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:50:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:50:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:50:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:50:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:50:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:50:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:50:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 23:50:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:50:58,436 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 23:50:58,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767551183] [2020-10-23 23:50:58,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:50:58,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 23:50:58,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174938641] [2020-10-23 23:50:58,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 23:50:58,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:50:58,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 23:50:58,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 23:50:58,438 INFO L87 Difference]: Start difference. First operand 845 states and 931 transitions. Second operand 14 states. [2020-10-23 23:50:59,781 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:51:00,538 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:51:01,289 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:02,037 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:02,750 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:04,508 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:05,241 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:05,994 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:06,781 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:51:07,511 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:51:10,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:10,006 INFO L93 Difference]: Finished difference Result 1618 states and 1885 transitions. [2020-10-23 23:51:10,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 23:51:10,007 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 202 [2020-10-23 23:51:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:10,011 INFO L225 Difference]: With dead ends: 1618 [2020-10-23 23:51:10,012 INFO L226 Difference]: Without dead ends: 893 [2020-10-23 23:51:10,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 23:51:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-10-23 23:51:10,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 700. [2020-10-23 23:51:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-10-23 23:51:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 755 transitions. [2020-10-23 23:51:10,311 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 755 transitions. Word has length 202 [2020-10-23 23:51:10,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:10,312 INFO L481 AbstractCegarLoop]: Abstraction has 700 states and 755 transitions. [2020-10-23 23:51:10,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 23:51:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 755 transitions. [2020-10-23 23:51:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-23 23:51:10,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:10,315 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, 1, 1, 1, 1, 1, 1] [2020-10-23 23:51:10,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:51:10,315 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 23:51:10,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:10,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1242272075, now seen corresponding path program 1 times [2020-10-23 23:51:10,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:10,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720350638] [2020-10-23 23:51:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,035 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:11,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:51:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:51:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 23:51:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 23:51:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 23:51:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:11,224 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 23:51:11,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720350638] [2020-10-23 23:51:11,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:51:11,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 23:51:11,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363494194] [2020-10-23 23:51:11,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 23:51:11,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:11,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 23:51:11,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 23:51:11,226 INFO L87 Difference]: Start difference. First operand 700 states and 755 transitions. Second operand 8 states. [2020-10-23 23:51:12,377 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:16,524 INFO L93 Difference]: Finished difference Result 1284 states and 1479 transitions. [2020-10-23 23:51:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-23 23:51:16,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-23 23:51:16,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:16,533 INFO L225 Difference]: With dead ends: 1284 [2020-10-23 23:51:16,533 INFO L226 Difference]: Without dead ends: 1280 [2020-10-23 23:51:16,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-23 23:51:16,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2020-10-23 23:51:17,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1014. [2020-10-23 23:51:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2020-10-23 23:51:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1095 transitions. [2020-10-23 23:51:17,080 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1095 transitions. Word has length 207 [2020-10-23 23:51:17,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:17,081 INFO L481 AbstractCegarLoop]: Abstraction has 1014 states and 1095 transitions. [2020-10-23 23:51:17,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 23:51:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1095 transitions. [2020-10-23 23:51:17,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-23 23:51:17,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:17,086 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:17,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 23:51:17,087 INFO L429 AbstractCegarLoop]: === Iteration 11 === [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 23:51:17,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:17,087 INFO L82 PathProgramCache]: Analyzing trace with hash -27595447, now seen corresponding path program 1 times [2020-10-23 23:51:17,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:17,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274942296] [2020-10-23 23:51:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,843 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:51:17,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:51:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 23:51:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 23:51:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 23:51:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 23:51:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 23:51:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:51:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:17,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:51:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:51:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:51:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:51:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-23 23:51:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-23 23:51:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-23 23:51:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-23 23:51:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:51:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-23 23:51:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-23 23:51:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:51:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 31 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 23:51:18,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274942296] [2020-10-23 23:51:18,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-23 23:51:18,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-23 23:51:18,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118273509] [2020-10-23 23:51:18,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:51:18,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:51:18,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:51:18,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:51:18,184 INFO L87 Difference]: Start difference. First operand 1014 states and 1095 transitions. Second operand 10 states. [2020-10-23 23:51:20,226 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:23,828 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:51:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:51:25,016 INFO L93 Difference]: Finished difference Result 2522 states and 2941 transitions. [2020-10-23 23:51:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 23:51:25,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 265 [2020-10-23 23:51:25,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:51:25,053 INFO L225 Difference]: With dead ends: 2522 [2020-10-23 23:51:25,054 INFO L226 Difference]: Without dead ends: 1795 [2020-10-23 23:51:25,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2020-10-23 23:51:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2020-10-23 23:51:25,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1499. [2020-10-23 23:51:25,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1499 states. [2020-10-23 23:51:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1668 transitions. [2020-10-23 23:51:25,646 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1668 transitions. Word has length 265 [2020-10-23 23:51:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:51:25,647 INFO L481 AbstractCegarLoop]: Abstraction has 1499 states and 1668 transitions. [2020-10-23 23:51:25,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:51:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1668 transitions. [2020-10-23 23:51:25,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-23 23:51:25,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:51:25,653 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:25,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 23:51:25,653 INFO L429 AbstractCegarLoop]: === Iteration 12 === [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 23:51:25,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:51:25,654 INFO L82 PathProgramCache]: Analyzing trace with hash -2076073303, now seen corresponding path program 1 times [2020-10-23 23:51:25,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:51:25,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677001480] [2020-10-23 23:51:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:51:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:51:25,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:51:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:51:25,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:51:26,113 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:51:26,114 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:51:26,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-23 23:51:26,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:51:26 BoogieIcfgContainer [2020-10-23 23:51:26,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:51:26,431 INFO L168 Benchmark]: Toolchain (without parser) took 98978.54 ms. Allocated memory was 151.0 MB in the beginning and 619.7 MB in the end (delta: 468.7 MB). Free memory was 126.7 MB in the beginning and 329.3 MB in the end (delta: -202.7 MB). Peak memory consumption was 267.6 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:26,432 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:51:26,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.07 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 105.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:26,433 INFO L168 Benchmark]: Boogie Preprocessor took 166.76 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:26,434 INFO L168 Benchmark]: RCFGBuilder took 1766.86 ms. Allocated memory was 151.0 MB in the beginning and 199.2 MB in the end (delta: 48.2 MB). Free memory was 101.2 MB in the beginning and 174.6 MB in the end (delta: -73.4 MB). Peak memory consumption was 54.8 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:26,434 INFO L168 Benchmark]: TraceAbstraction took 96426.39 ms. Allocated memory was 199.2 MB in the beginning and 619.7 MB in the end (delta: 420.5 MB). Free memory was 174.1 MB in the beginning and 329.3 MB in the end (delta: -155.2 MB). Peak memory consumption was 265.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:51:26,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 601.07 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 105.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 166.76 ms. Allocated memory is still 151.0 MB. Free memory was 105.1 MB in the beginning and 101.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1766.86 ms. Allocated memory was 151.0 MB in the beginning and 199.2 MB in the end (delta: 48.2 MB). Free memory was 101.2 MB in the beginning and 174.6 MB in the end (delta: -73.4 MB). Peak memory consumption was 54.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 96426.39 ms. Allocated memory was 199.2 MB in the beginning and 619.7 MB in the end (delta: 420.5 MB). Free memory was 174.1 MB in the beginning and 329.3 MB in the end (delta: -155.2 MB). Peak memory consumption was 265.2 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: [L87] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=177, \old(head)=183, \old(head)=165, \old(methAndRunningLastTime)=171, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=177, head={183:165}, methAndRunningLastTime=171, methaneLevelCritical=146, pumpRunning=139, systemActive=138, waterLevel=1] [L88] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=177, \old(head)=183, \old(head)=165, \old(methAndRunningLastTime)=171, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=177, head={183:165}, methAndRunningLastTime=171, methaneLevelCritical=0, pumpRunning=139, systemActive=138, waterLevel=1] [L181] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=177, \old(head)=165, \old(head)=183, \old(methAndRunningLastTime)=171, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={183:165}, methAndRunningLastTime=171, methaneLevelCritical=0, pumpRunning=139, systemActive=138, waterLevel=1] [L294] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=177, \old(head)=183, \old(head)=165, \old(methAndRunningLastTime)=171, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={183:165}, methAndRunningLastTime=171, methaneLevelCritical=0, pumpRunning=0, systemActive=138, waterLevel=1] [L295] int systemActive = 1; VAL [\old(cleanupTimeShifts)=177, \old(head)=183, \old(head)=165, \old(methAndRunningLastTime)=171, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={183:165}, methAndRunningLastTime=171, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=177, \old(head)=183, \old(head)=165, \old(methAndRunningLastTime)=171, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=171, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] int methAndRunningLastTime ; VAL [\old(cleanupTimeShifts)=177, \old(head)=165, \old(head)=183, \old(methAndRunningLastTime)=171, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L260] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L264] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L265] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] retValue_acc = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L75] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L266] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L266] tmp = valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L268] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L270] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L271] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L252] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L883] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L252] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L253] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int splverifierCounter ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L449] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L450] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L451] int tmp___1 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L452] int tmp___2 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L457] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L459] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L465] tmp = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L467] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L469] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L105] COND TRUE waterLevel < 2 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L106] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L469] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L477] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L479] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L479] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L487] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L500] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L302] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L309] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L311] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L331] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L336] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L428] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L429] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L430] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L167] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(waterLevel < 2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L174] retValue_acc = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L175] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L434] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] tmp = isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L436] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L439] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L441] retValue_acc = tmp___0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L442] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L336] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L336] tmp = isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L338] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L340] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L359] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L340] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L311] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L317] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L888] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L889] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L893] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L126] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L129] retValue_acc = methaneLevelCritical VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L130] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L893] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L893] tmp = isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L895] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L897] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L383] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L386] retValue_acc = pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L387] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L897] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L897] tmp___0 = isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L899] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L900] COND FALSE !(\read(methAndRunningLastTime)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L905] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L317] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L500] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L457] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L459] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L465] tmp = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L467] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L477] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L487] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L500] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L304] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] COND TRUE waterLevel > 0 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L94] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L304] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L309] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L311] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L331] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L334] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L349] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L311] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L317] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L888] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L889] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L126] int retValue_acc ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L129] retValue_acc = methaneLevelCritical VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L130] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L893] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] tmp = isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L895] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L897] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L383] int retValue_acc ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L386] retValue_acc = pumpRunning VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L387] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L897] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L897] tmp___0 = isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L899] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L900] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L902] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L286] CALL reach_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product33.cil.c", 3, "reach_error") VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 628 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 96.0s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 80.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2548 SDtfs, 6570 SDslu, 5138 SDs, 0 SdLazy, 9166 SolverSat, 1603 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 525 GetRequests, 320 SyntacticMatches, 5 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 46.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1499occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1766 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 2380 NumberOfCodeBlocks, 2380 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2103 ConstructedInterpolants, 0 QuantifiedInterpolants, 1024105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 43/46 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...