/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_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:43:27,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:43:27,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:43:27,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:43:27,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:43:27,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:43:27,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:43:27,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:43:27,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:43:27,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:43:27,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:43:27,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:43:27,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:43:27,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:43:27,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:43:27,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:43:27,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:43:27,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:43:27,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:43:27,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:43:27,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:43:27,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:43:27,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:43:27,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:43:27,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:43:27,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:43:27,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:43:27,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:43:27,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:43:27,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:43:27,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:43:27,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:43:27,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:43:27,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:43:27,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:43:27,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:43:27,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:43:27,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:43:27,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:43:27,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:43:27,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:43:27,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 23:43:27,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:43:27,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:43:27,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:43:27,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:43:27,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:43:27,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:43:27,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:43:27,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:43:27,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:43:27,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:43:27,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:43:27,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:43:27,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:43:27,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:43:27,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:43:27,819 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:43:27,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:43:27,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:43:27,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:43:27,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:43:27,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:43:27,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:43:27,821 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:43:28,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:43:28,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:43:28,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:43:28,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:43:28,229 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:43:28,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-23 23:43:28,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa128e6e/32644d8e358d479295c93974b91bf39e/FLAG2940f5c15 [2020-10-23 23:43:28,985 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:43:28,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-23 23:43:29,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa128e6e/32644d8e358d479295c93974b91bf39e/FLAG2940f5c15 [2020-10-23 23:43:29,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fa128e6e/32644d8e358d479295c93974b91bf39e [2020-10-23 23:43:29,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:43:29,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:43:29,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:43:29,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:43:29,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:43:29,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266438fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29, skipping insertion in model container [2020-10-23 23:43:29,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:43:29,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:43:29,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:43:29,458 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:43:29,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:43:29,618 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:43:29,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29 WrapperNode [2020-10-23 23:43:29,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:43:29,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:43:29,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:43:29,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:43:29,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... [2020-10-23 23:43:29,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:43:29,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:43:29,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:43:29,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:43:29,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:43:29,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:43:29,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:43:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:43:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:43:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:43:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:43:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:43:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:43:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:43:29,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:43:29,851 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:43:29,851 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:43:29,851 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:43:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:43:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:43:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:43:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:43:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:43:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:43:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:43:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:43:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 23:43:29,857 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:43:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:43:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:43:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:43:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:43:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:43:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:43:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:43:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:43:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:43:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:43:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:43:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:43:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:43:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:43:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:43:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:43:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:43:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:43:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:43:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:43:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:43:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:43:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:43:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:43:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:43:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:43:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:43:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:43:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:43:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:43:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:43:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:43:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:43:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:43:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:43:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:43:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:43:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:43:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:43:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:43:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:43:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:43:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:43:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:43:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:43:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:43:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:43:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:43:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:43:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:43:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:43:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:43:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:43:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:43:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:43:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 23:43:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:43:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:43:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:43:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:43:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:43:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:43:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:43:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:43:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:43:29,872 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:43:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:43:29,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:43:29,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:43:31,276 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:43:31,277 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:43:31,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:43:31 BoogieIcfgContainer [2020-10-23 23:43:31,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:43:31,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:43:31,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:43:31,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:43:31,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:43:29" (1/3) ... [2020-10-23 23:43:31,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad1e34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:43:31, skipping insertion in model container [2020-10-23 23:43:31,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:29" (2/3) ... [2020-10-23 23:43:31,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad1e34b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:43:31, skipping insertion in model container [2020-10-23 23:43:31,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:43:31" (3/3) ... [2020-10-23 23:43:31,289 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-10-23 23:43:31,302 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:43:31,309 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:43:31,323 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:43:31,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:43:31,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:43:31,350 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:43:31,350 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:43:31,350 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:43:31,351 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:43:31,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:43:31,351 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:43:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-10-23 23:43:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 23:43:31,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:31,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:31,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:31,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:31,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2013434145, now seen corresponding path program 1 times [2020-10-23 23:43:31,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:31,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557898657] [2020-10-23 23:43:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,358 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:32,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:43:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:32,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557898657] [2020-10-23 23:43:32,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:32,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:43:32,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595347311] [2020-10-23 23:43:32,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:43:32,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:32,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:43:32,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:43:32,586 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-10-23 23:43:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:34,211 INFO L93 Difference]: Finished difference Result 465 states and 552 transitions. [2020-10-23 23:43:34,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:43:34,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 23:43:34,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:34,246 INFO L225 Difference]: With dead ends: 465 [2020-10-23 23:43:34,247 INFO L226 Difference]: Without dead ends: 291 [2020-10-23 23:43:34,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:43:34,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-10-23 23:43:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 250. [2020-10-23 23:43:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-23 23:43:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 270 transitions. [2020-10-23 23:43:34,430 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 270 transitions. Word has length 148 [2020-10-23 23:43:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:34,431 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 270 transitions. [2020-10-23 23:43:34,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:43:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 270 transitions. [2020-10-23 23:43:34,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 23:43:34,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:34,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:34,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:43:34,437 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:34,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1678626346, now seen corresponding path program 1 times [2020-10-23 23:43:34,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:34,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731351728] [2020-10-23 23:43:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,087 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:35,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:43:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:43:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:35,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731351728] [2020-10-23 23:43:35,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:35,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:43:35,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835285067] [2020-10-23 23:43:35,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:43:35,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:35,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:43:35,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:43:35,220 INFO L87 Difference]: Start difference. First operand 250 states and 270 transitions. Second operand 4 states. [2020-10-23 23:43:36,065 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:37,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:37,209 INFO L93 Difference]: Finished difference Result 379 states and 423 transitions. [2020-10-23 23:43:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:43:37,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 23:43:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:37,223 INFO L225 Difference]: With dead ends: 379 [2020-10-23 23:43:37,223 INFO L226 Difference]: Without dead ends: 274 [2020-10-23 23:43:37,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:43:37,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-23 23:43:37,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-10-23 23:43:37,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-23 23:43:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 257 transitions. [2020-10-23 23:43:37,387 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 257 transitions. Word has length 149 [2020-10-23 23:43:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:37,391 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 257 transitions. [2020-10-23 23:43:37,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:43:37,392 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 257 transitions. [2020-10-23 23:43:37,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 23:43:37,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:37,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:37,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:43:37,401 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:37,402 INFO L82 PathProgramCache]: Analyzing trace with hash -193801291, now seen corresponding path program 1 times [2020-10-23 23:43:37,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:37,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362661498] [2020-10-23 23:43:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:37,967 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:37,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:43:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:43:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:38,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362661498] [2020-10-23 23:43:38,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:38,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:38,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359928085] [2020-10-23 23:43:38,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:38,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:38,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:38,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:38,285 INFO L87 Difference]: Start difference. First operand 240 states and 257 transitions. Second operand 9 states. [2020-10-23 23:43:39,004 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:39,502 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:39,934 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:40,346 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:40,764 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:41,145 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:42,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:42,733 INFO L93 Difference]: Finished difference Result 399 states and 448 transitions. [2020-10-23 23:43:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 23:43:42,739 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 23:43:42,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:42,749 INFO L225 Difference]: With dead ends: 399 [2020-10-23 23:43:42,749 INFO L226 Difference]: Without dead ends: 274 [2020-10-23 23:43:42,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:43:42,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-23 23:43:42,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 240. [2020-10-23 23:43:42,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-10-23 23:43:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 256 transitions. [2020-10-23 23:43:42,884 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 256 transitions. Word has length 158 [2020-10-23 23:43:42,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:42,885 INFO L481 AbstractCegarLoop]: Abstraction has 240 states and 256 transitions. [2020-10-23 23:43:42,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 256 transitions. [2020-10-23 23:43:42,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 23:43:42,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:42,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:42,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:43:42,888 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:42,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:42,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2108216576, now seen corresponding path program 1 times [2020-10-23 23:43:42,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:42,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499085136] [2020-10-23 23:43:42,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,278 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:43,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 23:43:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 23:43:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:43,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499085136] [2020-10-23 23:43:43,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:43,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:43:43,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767465793] [2020-10-23 23:43:43,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:43:43,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:43,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:43:43,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:43:43,434 INFO L87 Difference]: Start difference. First operand 240 states and 256 transitions. Second operand 6 states. [2020-10-23 23:43:44,063 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:45,830 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:46,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:46,662 INFO L93 Difference]: Finished difference Result 523 states and 593 transitions. [2020-10-23 23:43:46,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 23:43:46,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-10-23 23:43:46,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:46,667 INFO L225 Difference]: With dead ends: 523 [2020-10-23 23:43:46,667 INFO L226 Difference]: Without dead ends: 398 [2020-10-23 23:43:46,669 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 [2020-10-23 23:43:46,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-10-23 23:43:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 337. [2020-10-23 23:43:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-23 23:43:46,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 363 transitions. [2020-10-23 23:43:46,859 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 363 transitions. Word has length 166 [2020-10-23 23:43:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:46,860 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 363 transitions. [2020-10-23 23:43:46,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:43:46,860 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 363 transitions. [2020-10-23 23:43:46,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-23 23:43:46,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:46,863 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] [2020-10-23 23:43:46,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:43:46,864 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:46,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:46,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1315403326, now seen corresponding path program 1 times [2020-10-23 23:43:46,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:46,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076188054] [2020-10-23 23:43:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,256 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:47,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 23:43:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 23:43:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:47,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:47,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076188054] [2020-10-23 23:43:47,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:47,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:47,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935139373] [2020-10-23 23:43:47,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:47,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:47,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:47,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:47,474 INFO L87 Difference]: Start difference. First operand 337 states and 363 transitions. Second operand 9 states. [2020-10-23 23:43:48,181 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:49,434 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:49,862 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:50,259 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:50,639 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:51,062 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:43:51,434 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:53,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:53,459 INFO L93 Difference]: Finished difference Result 825 states and 960 transitions. [2020-10-23 23:43:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 23:43:53,460 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-10-23 23:43:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:53,465 INFO L225 Difference]: With dead ends: 825 [2020-10-23 23:43:53,465 INFO L226 Difference]: Without dead ends: 603 [2020-10-23 23:43:53,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:43:53,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-23 23:43:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 525. [2020-10-23 23:43:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2020-10-23 23:43:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 578 transitions. [2020-10-23 23:43:53,720 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 578 transitions. Word has length 190 [2020-10-23 23:43:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:53,720 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 578 transitions. [2020-10-23 23:43:53,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 578 transitions. [2020-10-23 23:43:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-23 23:43:53,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:53,725 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] [2020-10-23 23:43:53,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:43:53,726 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:43:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:53,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1523752097, now seen corresponding path program 1 times [2020-10-23 23:43:53,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:53,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455900534] [2020-10-23 23:43:53,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,104 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:54,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-23 23:43:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 23:43:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:43:54,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455900534] [2020-10-23 23:43:54,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:54,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:54,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614256873] [2020-10-23 23:43:54,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:54,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:54,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:54,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:54,327 INFO L87 Difference]: Start difference. First operand 525 states and 578 transitions. Second operand 9 states. [2020-10-23 23:43:55,029 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:56,628 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:57,030 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:57,482 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:57,845 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:58,623 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:59,002 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:59,360 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:59,818 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:01,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:01,105 INFO L93 Difference]: Finished difference Result 1398 states and 1632 transitions. [2020-10-23 23:44:01,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:44:01,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-10-23 23:44:01,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:01,113 INFO L225 Difference]: With dead ends: 1398 [2020-10-23 23:44:01,114 INFO L226 Difference]: Without dead ends: 988 [2020-10-23 23:44:01,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:44:01,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-10-23 23:44:01,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 873. [2020-10-23 23:44:01,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-10-23 23:44:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 970 transitions. [2020-10-23 23:44:01,474 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 970 transitions. Word has length 190 [2020-10-23 23:44:01,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:01,475 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 970 transitions. [2020-10-23 23:44:01,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:44:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 970 transitions. [2020-10-23 23:44:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-23 23:44:01,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:01,479 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] [2020-10-23 23:44:01,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:44:01,480 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:01,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:01,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1609018971, now seen corresponding path program 1 times [2020-10-23 23:44:01,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:01,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635341651] [2020-10-23 23:44:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:01,934 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:01,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:01,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:01,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:01,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:44:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:44:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:44:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 23:44:02,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635341651] [2020-10-23 23:44:02,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:02,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:44:02,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791855610] [2020-10-23 23:44:02,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:44:02,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:02,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:44:02,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:44:02,123 INFO L87 Difference]: Start difference. First operand 873 states and 970 transitions. Second operand 10 states. [2020-10-23 23:44:02,800 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:04,684 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:05,067 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:05,493 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:06,848 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:07,240 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:07,618 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:08,022 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:08,375 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:08,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:08,726 INFO L93 Difference]: Finished difference Result 1097 states and 1284 transitions. [2020-10-23 23:44:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:44:08,727 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-10-23 23:44:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:08,735 INFO L225 Difference]: With dead ends: 1097 [2020-10-23 23:44:08,735 INFO L226 Difference]: Without dead ends: 1093 [2020-10-23 23:44:08,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 23:44:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2020-10-23 23:44:09,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 873. [2020-10-23 23:44:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2020-10-23 23:44:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 968 transitions. [2020-10-23 23:44:09,190 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 968 transitions. Word has length 195 [2020-10-23 23:44:09,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:09,191 INFO L481 AbstractCegarLoop]: Abstraction has 873 states and 968 transitions. [2020-10-23 23:44:09,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:44:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 968 transitions. [2020-10-23 23:44:09,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 23:44:09,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:09,197 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:09,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:44:09,197 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:09,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:09,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1449475064, now seen corresponding path program 1 times [2020-10-23 23:44:09,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:09,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734161005] [2020-10-23 23:44:09,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,593 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:09,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:44:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:44:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 23:44:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 23:44:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 23:44:09,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734161005] [2020-10-23 23:44:09,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:09,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:44:09,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724613545] [2020-10-23 23:44:09,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:44:09,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:09,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:44:09,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:44:09,817 INFO L87 Difference]: Start difference. First operand 873 states and 968 transitions. Second operand 10 states. [2020-10-23 23:44:11,325 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:11,675 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:44:12,075 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:44:12,452 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:12,858 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:13,231 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:14,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:15,000 INFO L93 Difference]: Finished difference Result 1881 states and 2209 transitions. [2020-10-23 23:44:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:44:15,000 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2020-10-23 23:44:15,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:15,007 INFO L225 Difference]: With dead ends: 1881 [2020-10-23 23:44:15,008 INFO L226 Difference]: Without dead ends: 1123 [2020-10-23 23:44:15,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:44:15,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2020-10-23 23:44:15,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 905. [2020-10-23 23:44:15,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-23 23:44:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1000 transitions. [2020-10-23 23:44:15,527 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1000 transitions. Word has length 218 [2020-10-23 23:44:15,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:15,528 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1000 transitions. [2020-10-23 23:44:15,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:44:15,529 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1000 transitions. [2020-10-23 23:44:15,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-23 23:44:15,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:15,534 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:15,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:44:15,535 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:15,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:15,535 INFO L82 PathProgramCache]: Analyzing trace with hash -9675672, now seen corresponding path program 1 times [2020-10-23 23:44:15,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:15,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960800924] [2020-10-23 23:44:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:15,982 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:15,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:44:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:44:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 23:44:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 23:44:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:16,232 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 23:44:16,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960800924] [2020-10-23 23:44:16,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:16,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 23:44:16,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636045539] [2020-10-23 23:44:16,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 23:44:16,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:16,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 23:44:16,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 23:44:16,235 INFO L87 Difference]: Start difference. First operand 905 states and 1000 transitions. Second operand 13 states. [2020-10-23 23:44:17,025 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:17,433 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:44:17,860 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:18,268 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:18,634 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:19,678 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:20,080 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:20,507 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:20,942 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:21,342 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:23,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:23,207 INFO L93 Difference]: Finished difference Result 1651 states and 1902 transitions. [2020-10-23 23:44:23,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:44:23,208 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2020-10-23 23:44:23,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:23,213 INFO L225 Difference]: With dead ends: 1651 [2020-10-23 23:44:23,213 INFO L226 Difference]: Without dead ends: 861 [2020-10-23 23:44:23,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 23:44:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-10-23 23:44:23,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 717. [2020-10-23 23:44:23,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2020-10-23 23:44:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 774 transitions. [2020-10-23 23:44:23,604 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 774 transitions. Word has length 218 [2020-10-23 23:44:23,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:23,605 INFO L481 AbstractCegarLoop]: Abstraction has 717 states and 774 transitions. [2020-10-23 23:44:23,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 23:44:23,605 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 774 transitions. [2020-10-23 23:44:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-23 23:44:23,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:23,610 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:23,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:44:23,611 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:23,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:23,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1927375073, now seen corresponding path program 1 times [2020-10-23 23:44:23,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:23,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784886499] [2020-10-23 23:44:23,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,073 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:24,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 23:44:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 23:44:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 23:44:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:44:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 23:44:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 23:44:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 23:44:24,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784886499] [2020-10-23 23:44:24,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-23 23:44:24,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-23 23:44:24,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929045120] [2020-10-23 23:44:24,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-23 23:44:24,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:24,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-23 23:44:24,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-23 23:44:24,555 INFO L87 Difference]: Start difference. First operand 717 states and 774 transitions. Second operand 20 states. [2020-10-23 23:44:25,345 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:25,914 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:26,350 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 23:44:26,794 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:27,218 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:44:27,617 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:28,781 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:30,461 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:30,910 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:44:31,429 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:31,874 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:32,334 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:44:32,778 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:44:33,179 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:33,611 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:44:34,061 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:34,593 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:44:35,065 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:35,547 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 23:44:36,433 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 23:44:37,456 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2020-10-23 23:44:38,228 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 23:44:40,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:40,312 INFO L93 Difference]: Finished difference Result 1428 states and 1602 transitions. [2020-10-23 23:44:40,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-23 23:44:40,313 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 223 [2020-10-23 23:44:40,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:40,319 INFO L225 Difference]: With dead ends: 1428 [2020-10-23 23:44:40,320 INFO L226 Difference]: Without dead ends: 826 [2020-10-23 23:44:40,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=497, Invalid=2155, Unknown=0, NotChecked=0, Total=2652 [2020-10-23 23:44:40,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-10-23 23:44:40,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 682. [2020-10-23 23:44:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2020-10-23 23:44:40,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 729 transitions. [2020-10-23 23:44:40,668 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 729 transitions. Word has length 223 [2020-10-23 23:44:40,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:40,668 INFO L481 AbstractCegarLoop]: Abstraction has 682 states and 729 transitions. [2020-10-23 23:44:40,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-23 23:44:40,668 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 729 transitions. [2020-10-23 23:44:40,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-23 23:44:40,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:40,672 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:40,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 23:44:40,673 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:40,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:40,673 INFO L82 PathProgramCache]: Analyzing trace with hash 34117803, now seen corresponding path program 1 times [2020-10-23 23:44:40,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:40,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546773778] [2020-10-23 23:44:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,057 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:41,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 23:44:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 23:44:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 23:44:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 23:44:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-23 23:44:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-23 23:44:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-23 23:44:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-23 23:44:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-23 23:44:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2020-10-23 23:44:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-23 23:44:41,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546773778] [2020-10-23 23:44:41,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-23 23:44:41,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-23 23:44:41,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363267746] [2020-10-23 23:44:41,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:44:41,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:41,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:44:41,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:44:41,365 INFO L87 Difference]: Start difference. First operand 682 states and 729 transitions. Second operand 9 states. [2020-10-23 23:44:42,630 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:44,717 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:45,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:45,667 INFO L93 Difference]: Finished difference Result 1572 states and 1829 transitions. [2020-10-23 23:44:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:44:45,668 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 269 [2020-10-23 23:44:45,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:45,675 INFO L225 Difference]: With dead ends: 1572 [2020-10-23 23:44:45,675 INFO L226 Difference]: Without dead ends: 1169 [2020-10-23 23:44:45,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-23 23:44:45,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-10-23 23:44:46,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 932. [2020-10-23 23:44:46,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-10-23 23:44:46,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1021 transitions. [2020-10-23 23:44:46,148 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1021 transitions. Word has length 269 [2020-10-23 23:44:46,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:46,152 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1021 transitions. [2020-10-23 23:44:46,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:44:46,152 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1021 transitions. [2020-10-23 23:44:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-23 23:44:46,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:46,157 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:46,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 23:44:46,157 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:44:46,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:46,158 INFO L82 PathProgramCache]: Analyzing trace with hash 735763275, now seen corresponding path program 1 times [2020-10-23 23:44:46,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:46,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842409168] [2020-10-23 23:44:46,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:44:46,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:44:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:44:46,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:44:46,732 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:44:46,732 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:44:46,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-23 23:44:47,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:44:47 BoogieIcfgContainer [2020-10-23 23:44:47,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:44:47,131 INFO L168 Benchmark]: Toolchain (without parser) took 78096.52 ms. Allocated memory was 151.0 MB in the beginning and 788.5 MB in the end (delta: 637.5 MB). Free memory was 126.5 MB in the beginning and 656.8 MB in the end (delta: -530.3 MB). Peak memory consumption was 478.8 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:47,132 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 126.2 MB in the end (delta: 79.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:44:47,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.11 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 105.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:47,140 INFO L168 Benchmark]: Boogie Preprocessor took 144.77 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 132.7 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:47,141 INFO L168 Benchmark]: RCFGBuilder took 1513.67 ms. Allocated memory is still 151.0 MB. Free memory was 132.7 MB in the beginning and 88.0 MB in the end (delta: 44.7 MB). Peak memory consumption was 63.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:47,142 INFO L168 Benchmark]: TraceAbstraction took 75844.71 ms. Allocated memory was 151.0 MB in the beginning and 788.5 MB in the end (delta: 637.5 MB). Free memory was 87.5 MB in the beginning and 656.8 MB in the end (delta: -569.3 MB). Peak memory consumption was 439.4 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:47,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 126.2 MB in the end (delta: 79.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 579.11 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 105.0 MB in the end (delta: 20.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 144.77 ms. Allocated memory is still 151.0 MB. Free memory was 105.0 MB in the beginning and 132.7 MB in the end (delta: -27.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1513.67 ms. Allocated memory is still 151.0 MB. Free memory was 132.7 MB in the beginning and 88.0 MB in the end (delta: 44.7 MB). Peak memory consumption was 63.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 75844.71 ms. Allocated memory was 151.0 MB in the beginning and 788.5 MB in the end (delta: 637.5 MB). Free memory was 87.5 MB in the beginning and 656.8 MB in the end (delta: -569.3 MB). Peak memory consumption was 439.4 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)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=145, pumpRunning=131, systemActive=130, waterLevel=138] [L482] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=145, pumpRunning=131, systemActive=130, waterLevel=1] [L483] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=131, systemActive=130, waterLevel=1] [L580] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=130, waterLevel=1] [L581] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L751] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=145, \old(pumpRunning)=131, \old(systemActive)=130, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] 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] [L828] 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] [L832] 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] [L833] 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] [L834] 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] [L876] 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] [L879] 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] [L880] 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] [L834] 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] [L834] 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] [L836] 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] [L838] 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] [L839] 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] [L818] 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] [L413] 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] [L414] 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] [L415] 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] [L416] 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] [L417] 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] [L420] 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] [L422] 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] [L424] 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] [L430] 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] [L432] 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] [L434] 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] [L500] 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] [L501] 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] [L434] 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] [L440] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L442] COND FALSE !(\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=0, waterLevel=2] [L450] 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=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L452] COND TRUE \read(tmp___2) 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=0, tmp___2=1, waterLevel=2] [L465] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L733] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L734] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L562] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L570] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L738] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L740] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L743] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L745] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L746] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L622] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L622] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L624] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L626] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L655] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L657] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L661] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L626] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L597] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L603] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L900] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L902] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L603] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L465] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L422] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L424] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L430] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L432] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L440] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L442] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L444] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L512] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L515] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L444] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L450] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L452] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L465] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L590] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L488] COND TRUE waterLevel > 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L489] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L590] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L597] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L617] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L620] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L635] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L597] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L603] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L521] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L524] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L525] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L900] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L904] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L691] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L904] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L904] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L906] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L908] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L889] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product41.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 628 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 75.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 63.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2755 SDtfs, 4890 SDslu, 6453 SDs, 0 SdLazy, 12175 SolverSat, 1334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 499 GetRequests, 312 SyntacticMatches, 6 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 34.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=932occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 1326 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 2394 NumberOfCodeBlocks, 2394 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2113 ConstructedInterpolants, 0 QuantifiedInterpolants, 1040879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 54/60 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...