/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 03:54:44,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 03:54:44,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 03:54:44,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 03:54:44,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 03:54:44,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 03:54:44,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 03:54:44,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 03:54:44,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 03:54:44,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 03:54:44,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 03:54:44,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 03:54:44,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 03:54:44,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 03:54:44,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 03:54:44,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 03:54:44,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 03:54:44,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 03:54:44,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 03:54:44,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 03:54:44,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 03:54:44,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 03:54:44,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 03:54:44,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 03:54:44,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 03:54:44,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 03:54:44,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 03:54:44,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 03:54:44,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 03:54:44,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 03:54:44,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 03:54:44,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 03:54:44,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 03:54:44,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 03:54:44,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 03:54:44,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 03:54:44,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 03:54:44,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 03:54:44,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 03:54:44,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 03:54:44,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 03:54:44,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 03:54:44,658 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 03:54:44,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 03:54:44,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 03:54:44,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 03:54:44,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 03:54:44,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 03:54:44,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 03:54:44,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 03:54:44,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 03:54:44,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 03:54:44,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 03:54:44,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 03:54:44,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 03:54:44,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 03:54:44,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 03:54:44,663 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 03:54:44,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 03:54:44,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 03:54:44,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:54:44,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 03:54:44,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 03:54:44,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 03:54:44,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 03:54:45,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 03:54:45,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 03:54:45,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 03:54:45,119 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 03:54:45,120 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 03:54:45,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-11-07 03:54:45,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5947ab950/3a2634b59dc545148f1505f2c81cb79f/FLAGab8ca1b45 [2020-11-07 03:54:45,953 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 03:54:45,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product33.cil.c [2020-11-07 03:54:45,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5947ab950/3a2634b59dc545148f1505f2c81cb79f/FLAGab8ca1b45 [2020-11-07 03:54:46,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5947ab950/3a2634b59dc545148f1505f2c81cb79f [2020-11-07 03:54:46,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 03:54:46,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 03:54:46,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 03:54:46,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 03:54:46,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 03:54:46,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af28c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46, skipping insertion in model container [2020-11-07 03:54:46,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 03:54:46,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 03:54:46,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:54:46,593 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 03:54:46,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:54:46,824 INFO L208 MainTranslator]: Completed translation [2020-11-07 03:54:46,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46 WrapperNode [2020-11-07 03:54:46,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 03:54:46,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 03:54:46,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 03:54:46,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 03:54:46,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... [2020-11-07 03:54:46,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 03:54:46,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 03:54:46,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 03:54:46,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 03:54:46,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:54:47,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 03:54:47,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 03:54:47,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 03:54:47,010 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 03:54:47,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 03:54:47,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 03:54:47,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 03:54:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 03:54:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 03:54:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 03:54:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 03:54:47,011 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 03:54:47,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 03:54:47,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 03:54:47,012 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 03:54:47,012 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 03:54:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 03:54:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 03:54:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 03:54:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 03:54:47,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 03:54:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 03:54:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 03:54:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 03:54:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 03:54:47,014 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 03:54:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 03:54:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 03:54:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 03:54:47,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 03:54:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:54:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 03:54:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 03:54:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 03:54:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 03:54:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 03:54:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 03:54:47,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 03:54:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 03:54:47,017 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 03:54:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 03:54:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 03:54:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 03:54:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 03:54:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 03:54:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 03:54:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 03:54:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 03:54:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 03:54:47,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 03:54:47,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 03:54:47,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 03:54:47,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 03:54:47,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 03:54:47,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 03:54:47,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 03:54:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 03:54:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 03:54:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 03:54:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 03:54:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 03:54:47,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 03:54:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 03:54:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 03:54:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 03:54:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 03:54:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 03:54:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 03:54:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 03:54:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:54:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 03:54:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 03:54:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 03:54:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 03:54:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 03:54:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 03:54:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 03:54:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 03:54:47,024 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 03:54:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 03:54:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 03:54:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 03:54:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 03:54:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 03:54:47,025 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 03:54:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 03:54:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 03:54:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 03:54:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 03:54:47,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 03:54:48,176 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 03:54:48,177 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 03:54:48,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:48 BoogieIcfgContainer [2020-11-07 03:54:48,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 03:54:48,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 03:54:48,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 03:54:48,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 03:54:48,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:54:46" (1/3) ... [2020-11-07 03:54:48,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18df726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:48, skipping insertion in model container [2020-11-07 03:54:48,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:46" (2/3) ... [2020-11-07 03:54:48,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18df726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:48, skipping insertion in model container [2020-11-07 03:54:48,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:48" (3/3) ... [2020-11-07 03:54:48,189 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2020-11-07 03:54:48,246 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 03:54:48,251 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 03:54:48,266 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 03:54:48,305 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 03:54:48,305 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 03:54:48,305 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 03:54:48,305 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 03:54:48,305 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 03:54:48,306 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 03:54:48,306 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 03:54:48,306 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 03:54:48,344 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-11-07 03:54:48,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-07 03:54:48,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:48,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:54:48,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:54:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:48,380 INFO L82 PathProgramCache]: Analyzing trace with hash 818889816, now seen corresponding path program 1 times [2020-11-07 03:54:48,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:48,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312846783] [2020-11-07 03:54:48,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,282 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:54:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:54:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:54:49,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312846783] [2020-11-07 03:54:49,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:49,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 03:54:49,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464579237] [2020-11-07 03:54:49,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 03:54:49,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:49,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 03:54:49,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:54:49,557 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2020-11-07 03:54:51,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:54:51,130 INFO L93 Difference]: Finished difference Result 429 states and 512 transitions. [2020-11-07 03:54:51,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 03:54:51,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-07 03:54:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:54:51,172 INFO L225 Difference]: With dead ends: 429 [2020-11-07 03:54:51,173 INFO L226 Difference]: Without dead ends: 272 [2020-11-07 03:54:51,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:54:51,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-07 03:54:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 233. [2020-11-07 03:54:51,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-11-07 03:54:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 251 transitions. [2020-11-07 03:54:51,383 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 251 transitions. Word has length 148 [2020-11-07 03:54:51,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:54:51,386 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 251 transitions. [2020-11-07 03:54:51,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 03:54:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 251 transitions. [2020-11-07 03:54:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 03:54:51,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:51,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:54:51,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 03:54:51,399 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:54:51,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:51,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1991934585, now seen corresponding path program 1 times [2020-11-07 03:54:51,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:51,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611612717] [2020-11-07 03:54:51,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,910 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:51,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 03:54:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:51,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:54:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:52,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:54:52,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611612717] [2020-11-07 03:54:52,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:52,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 03:54:52,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094259283] [2020-11-07 03:54:52,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 03:54:52,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:52,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 03:54:52,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 03:54:52,019 INFO L87 Difference]: Start difference. First operand 233 states and 251 transitions. Second operand 4 states. [2020-11-07 03:54:52,882 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:54:53,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:54:53,815 INFO L93 Difference]: Finished difference Result 343 states and 383 transitions. [2020-11-07 03:54:53,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 03:54:53,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-07 03:54:53,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:54:53,823 INFO L225 Difference]: With dead ends: 343 [2020-11-07 03:54:53,823 INFO L226 Difference]: Without dead ends: 255 [2020-11-07 03:54:53,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 03:54:53,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-07 03:54:53,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2020-11-07 03:54:53,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-07 03:54:53,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2020-11-07 03:54:53,917 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 149 [2020-11-07 03:54:53,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:54:53,918 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2020-11-07 03:54:53,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 03:54:53,918 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2020-11-07 03:54:53,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-07 03:54:53,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:53,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:54:53,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 03:54:53,921 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:54:53,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:53,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1134896611, now seen corresponding path program 1 times [2020-11-07 03:54:53,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:53,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437329253] [2020-11-07 03:54:53,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,357 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:54:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 03:54:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:54:54,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437329253] [2020-11-07 03:54:54,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:54,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:54:54,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556475830] [2020-11-07 03:54:54,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:54:54,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:54,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:54:54,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:54:54,620 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand 9 states. [2020-11-07 03:54:55,271 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:54:55,777 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:54:56,167 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:54:56,593 WARN L194 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:54:56,990 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:54:57,397 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:54:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:54:58,923 INFO L93 Difference]: Finished difference Result 363 states and 408 transitions. [2020-11-07 03:54:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 03:54:58,924 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-11-07 03:54:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:54:58,932 INFO L225 Difference]: With dead ends: 363 [2020-11-07 03:54:58,934 INFO L226 Difference]: Without dead ends: 255 [2020-11-07 03:54:58,936 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 03:54:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-07 03:54:59,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2020-11-07 03:54:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-07 03:54:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 237 transitions. [2020-11-07 03:54:59,040 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 237 transitions. Word has length 158 [2020-11-07 03:54:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:54:59,041 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 237 transitions. [2020-11-07 03:54:59,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:54:59,041 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 237 transitions. [2020-11-07 03:54:59,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-11-07 03:54:59,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:54:59,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:54:59,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 03:54:59,044 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:54:59,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:54:59,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1411314036, now seen corresponding path program 1 times [2020-11-07 03:54:59,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:54:59,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160166808] [2020-11-07 03:54:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:54:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,455 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:54:59,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:54:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:54:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:54:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:54:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:54:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:54:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:54:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-07 03:54:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 03:54:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:54:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:54:59,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160166808] [2020-11-07 03:54:59,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:54:59,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 03:54:59,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444555529] [2020-11-07 03:54:59,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 03:54:59,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:54:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 03:54:59,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-07 03:54:59,673 INFO L87 Difference]: Start difference. First operand 223 states and 237 transitions. Second operand 6 states. [2020-11-07 03:55:00,272 WARN L194 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:02,060 WARN L194 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:02,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:02,664 INFO L93 Difference]: Finished difference Result 487 states and 553 transitions. [2020-11-07 03:55:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 03:55:02,664 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-11-07 03:55:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:02,668 INFO L225 Difference]: With dead ends: 487 [2020-11-07 03:55:02,668 INFO L226 Difference]: Without dead ends: 379 [2020-11-07 03:55:02,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:02,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-11-07 03:55:02,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 318. [2020-11-07 03:55:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-07 03:55:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 342 transitions. [2020-11-07 03:55:02,829 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 342 transitions. Word has length 166 [2020-11-07 03:55:02,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:02,829 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 342 transitions. [2020-11-07 03:55:02,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 03:55:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 342 transitions. [2020-11-07 03:55:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-07 03:55:02,833 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:02,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:55:02,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 03:55:02,833 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:02,834 INFO L82 PathProgramCache]: Analyzing trace with hash 996135363, now seen corresponding path program 1 times [2020-11-07 03:55:02,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:02,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058589225] [2020-11-07 03:55:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,312 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:03,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:55:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-11-07 03:55:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:55:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:03,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058589225] [2020-11-07 03:55:03,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:03,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:55:03,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94166759] [2020-11-07 03:55:03,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:55:03,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:03,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:55:03,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:55:03,634 INFO L87 Difference]: Start difference. First operand 318 states and 342 transitions. Second operand 9 states. [2020-11-07 03:55:04,292 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:05,586 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:06,013 WARN L194 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:06,411 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:06,757 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:07,229 WARN L194 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:07,624 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:09,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:09,251 INFO L93 Difference]: Finished difference Result 768 states and 897 transitions. [2020-11-07 03:55:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 03:55:09,252 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-11-07 03:55:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:09,257 INFO L225 Difference]: With dead ends: 768 [2020-11-07 03:55:09,257 INFO L226 Difference]: Without dead ends: 565 [2020-11-07 03:55:09,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:55:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-11-07 03:55:09,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 487. [2020-11-07 03:55:09,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2020-11-07 03:55:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 536 transitions. [2020-11-07 03:55:09,507 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 536 transitions. Word has length 190 [2020-11-07 03:55:09,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:09,507 INFO L481 AbstractCegarLoop]: Abstraction has 487 states and 536 transitions. [2020-11-07 03:55:09,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:55:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 536 transitions. [2020-11-07 03:55:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-07 03:55:09,510 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:09,511 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] [2020-11-07 03:55:09,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 03:55:09,511 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:09,512 INFO L82 PathProgramCache]: Analyzing trace with hash 787786592, now seen corresponding path program 1 times [2020-11-07 03:55:09,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:09,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494701529] [2020-11-07 03:55:09,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,909 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:09,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:55:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:09,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-11-07 03:55:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:10,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:55:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:10,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:10,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494701529] [2020-11-07 03:55:10,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:10,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:55:10,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245870999] [2020-11-07 03:55:10,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:55:10,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:10,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:55:10,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:55:10,060 INFO L87 Difference]: Start difference. First operand 487 states and 536 transitions. Second operand 9 states. [2020-11-07 03:55:10,641 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:12,383 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:12,761 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:13,190 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:13,581 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:13,956 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:14,305 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:14,677 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:15,159 WARN L194 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:16,288 INFO L93 Difference]: Finished difference Result 1284 states and 1506 transitions. [2020-11-07 03:55:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 03:55:16,289 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-11-07 03:55:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:16,295 INFO L225 Difference]: With dead ends: 1284 [2020-11-07 03:55:16,296 INFO L226 Difference]: Without dead ends: 912 [2020-11-07 03:55:16,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-07 03:55:16,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-11-07 03:55:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 797. [2020-11-07 03:55:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-11-07 03:55:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 886 transitions. [2020-11-07 03:55:16,691 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 886 transitions. Word has length 190 [2020-11-07 03:55:16,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:16,692 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 886 transitions. [2020-11-07 03:55:16,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:55:16,692 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 886 transitions. [2020-11-07 03:55:16,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-11-07 03:55:16,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:16,696 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] [2020-11-07 03:55:16,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 03:55:16,696 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:16,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:16,697 INFO L82 PathProgramCache]: Analyzing trace with hash 222601279, now seen corresponding path program 1 times [2020-11-07 03:55:16,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:16,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300315400] [2020-11-07 03:55:16,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,103 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:17,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:55:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 03:55:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-07 03:55:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:17,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:17,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300315400] [2020-11-07 03:55:17,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:17,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:17,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250008474] [2020-11-07 03:55:17,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:17,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:17,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:17,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:17,293 INFO L87 Difference]: Start difference. First operand 797 states and 886 transitions. Second operand 10 states. [2020-11-07 03:55:17,950 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:19,692 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:20,106 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:20,459 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:55:20,837 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:21,271 WARN L194 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:21,714 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:55:22,088 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:22,498 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:23,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:23,548 INFO L93 Difference]: Finished difference Result 1021 states and 1200 transitions. [2020-11-07 03:55:23,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 03:55:23,549 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-11-07 03:55:23,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:23,556 INFO L225 Difference]: With dead ends: 1021 [2020-11-07 03:55:23,556 INFO L226 Difference]: Without dead ends: 1017 [2020-11-07 03:55:23,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-07 03:55:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2020-11-07 03:55:23,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 797. [2020-11-07 03:55:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-11-07 03:55:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 884 transitions. [2020-11-07 03:55:23,917 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 884 transitions. Word has length 195 [2020-11-07 03:55:23,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:23,918 INFO L481 AbstractCegarLoop]: Abstraction has 797 states and 884 transitions. [2020-11-07 03:55:23,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:55:23,918 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 884 transitions. [2020-11-07 03:55:23,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-11-07 03:55:23,922 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:23,922 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] [2020-11-07 03:55:23,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 03:55:23,923 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:23,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:23,923 INFO L82 PathProgramCache]: Analyzing trace with hash -347744547, now seen corresponding path program 1 times [2020-11-07 03:55:23,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:23,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408567566] [2020-11-07 03:55:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,293 WARN L194 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:24,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:55:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-07 03:55:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-11-07 03:55:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:24,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408567566] [2020-11-07 03:55:24,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:24,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:55:24,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256492383] [2020-11-07 03:55:24,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:55:24,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:24,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:55:24,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:55:24,496 INFO L87 Difference]: Start difference. First operand 797 states and 884 transitions. Second operand 10 states. [2020-11-07 03:55:25,914 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:26,296 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:26,703 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 03:55:27,082 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:27,484 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:27,840 WARN L194 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:29,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:29,358 INFO L93 Difference]: Finished difference Result 1721 states and 2011 transitions. [2020-11-07 03:55:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 03:55:29,359 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-11-07 03:55:29,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:29,367 INFO L225 Difference]: With dead ends: 1721 [2020-11-07 03:55:29,367 INFO L226 Difference]: Without dead ends: 1039 [2020-11-07 03:55:29,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:55:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-11-07 03:55:29,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 829. [2020-11-07 03:55:29,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-11-07 03:55:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 916 transitions. [2020-11-07 03:55:29,782 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 916 transitions. Word has length 196 [2020-11-07 03:55:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:29,782 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 916 transitions. [2020-11-07 03:55:29,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:55:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 916 transitions. [2020-11-07 03:55:29,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-11-07 03:55:29,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:29,787 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] [2020-11-07 03:55:29,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 03:55:29,787 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:29,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:29,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1487538371, now seen corresponding path program 1 times [2020-11-07 03:55:29,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:29,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539416456] [2020-11-07 03:55:29,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,181 WARN L194 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:55:30,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:55:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:55:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:55:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:55:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:55:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:55:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:55:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:55:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:55:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:55:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-07 03:55:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-11-07 03:55:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:55:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:55:30,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539416456] [2020-11-07 03:55:30,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:55:30,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 03:55:30,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143166685] [2020-11-07 03:55:30,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 03:55:30,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:55:30,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 03:55:30,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-11-07 03:55:30,405 INFO L87 Difference]: Start difference. First operand 829 states and 916 transitions. Second operand 13 states. [2020-11-07 03:55:31,141 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:55:31,541 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:55:31,912 WARN L194 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:32,290 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:32,650 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:33,620 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:33,985 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:34,362 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:34,753 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:55:35,131 WARN L194 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:55:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:55:36,636 INFO L93 Difference]: Finished difference Result 1537 states and 1776 transitions. [2020-11-07 03:55:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 03:55:36,636 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 196 [2020-11-07 03:55:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:55:36,643 INFO L225 Difference]: With dead ends: 1537 [2020-11-07 03:55:36,643 INFO L226 Difference]: Without dead ends: 823 [2020-11-07 03:55:36,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-11-07 03:55:36,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2020-11-07 03:55:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 679. [2020-11-07 03:55:36,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2020-11-07 03:55:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 732 transitions. [2020-11-07 03:55:36,969 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 732 transitions. Word has length 196 [2020-11-07 03:55:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:55:36,969 INFO L481 AbstractCegarLoop]: Abstraction has 679 states and 732 transitions. [2020-11-07 03:55:36,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 03:55:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 732 transitions. [2020-11-07 03:55:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-07 03:55:36,972 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:55:36,972 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] [2020-11-07 03:55:36,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 03:55:36,973 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:55:36,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:55:36,973 INFO L82 PathProgramCache]: Analyzing trace with hash 25197201, now seen corresponding path program 1 times [2020-11-07 03:55:36,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:55:36,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277262797] [2020-11-07 03:55:36,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:55:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:55:37,050 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:55:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:55:37,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:55:37,390 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 03:55:37,390 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 03:55:37,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 03:55:37,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:55:37 BoogieIcfgContainer [2020-11-07 03:55:37,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 03:55:37,611 INFO L168 Benchmark]: Toolchain (without parser) took 51415.36 ms. Allocated memory was 151.0 MB in the beginning and 638.6 MB in the end (delta: 487.6 MB). Free memory was 127.0 MB in the beginning and 281.3 MB in the end (delta: -154.3 MB). Peak memory consumption was 334.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:37,611 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 126.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 03:55:37,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.28 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 105.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:37,612 INFO L168 Benchmark]: Boogie Preprocessor took 97.08 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 102.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:37,613 INFO L168 Benchmark]: RCFGBuilder took 1255.21 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 62.2 MB in the end (delta: 39.9 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:37,614 INFO L168 Benchmark]: TraceAbstraction took 49427.54 ms. Allocated memory was 151.0 MB in the beginning and 638.6 MB in the end (delta: 487.6 MB). Free memory was 62.2 MB in the beginning and 281.3 MB in the end (delta: -219.2 MB). Peak memory consumption was 268.4 MB. Max. memory is 8.0 GB. [2020-11-07 03:55:37,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 126.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 622.28 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 105.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.08 ms. Allocated memory is still 151.0 MB. Free memory was 105.9 MB in the beginning and 102.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1255.21 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 62.2 MB in the end (delta: 39.9 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 49427.54 ms. Allocated memory was 151.0 MB in the beginning and 638.6 MB in the end (delta: 487.6 MB). Free memory was 62.2 MB in the beginning and 281.3 MB in the end (delta: -219.2 MB). Peak memory consumption was 268.4 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=135, systemActive=134, waterLevel=141] [L426] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=134, waterLevel=141] [L427] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=141] [L685] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=141] [L808] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=148, pumpRunning=0, systemActive=1, waterLevel=1] [L809] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=148, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L758] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L759] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L764] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L765] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L679] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L680] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L765] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L765] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L767] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L769] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L770] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L752] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L583] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L585] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L587] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L592] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L594] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L600] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L602] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L604] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L604] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L610] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L612] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L614] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L614] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L620] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L622] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L635] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L443] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L463] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L562] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L888] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L891] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L895] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L896] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L566] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L568] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L571] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L573] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L574] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L468] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L470] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L472] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L491] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L472] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L443] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L449] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L783] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L847] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L850] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L851] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L787] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L789] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L791] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L515] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L518] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L519] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L791] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L791] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L793] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L795] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L412] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product33.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 619 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 49.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 40.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1931 SDtfs, 2954 SDslu, 4254 SDs, 0 SdLazy, 7033 SolverSat, 769 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 21.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=829occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 931 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 1789 NumberOfCodeBlocks, 1789 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1579 ConstructedInterpolants, 0 QuantifiedInterpolants, 719601 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...