/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:49:05,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:49:05,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:49:05,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:49:05,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:49:05,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:49:05,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:49:05,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:49:05,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:49:05,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:49:05,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:49:05,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:49:05,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:49:05,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:49:05,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:49:05,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:49:05,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:49:05,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:49:05,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:49:05,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:49:05,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:49:05,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:49:05,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:49:05,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:49:05,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:49:05,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:49:05,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:49:05,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:49:05,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:49:05,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:49:05,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:49:05,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:49:05,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:49:05,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:49:05,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:49:05,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:49:05,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:49:05,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:49:05,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:49:05,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:49:05,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:49:05,186 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 19:49:05,210 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:49:05,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:49:05,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:49:05,214 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:49:05,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:49:05,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:49:05,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:49:05,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:49:05,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:49:05,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:49:05,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:49:05,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:49:05,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:49:05,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:49:05,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:49:05,218 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:49:05,218 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:49:05,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:49:05,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:49:05,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:49:05,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:49:05,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:49:05,219 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:49:05,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:49:05,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:49:05,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:49:05,627 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:49:05,629 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:49:05,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-23 19:49:05,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c97c76df/3ce7dde69d6e49bbbf95bb8ada437804/FLAG24e4fd5fd [2020-10-23 19:49:06,472 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:49:06,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-10-23 19:49:06,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c97c76df/3ce7dde69d6e49bbbf95bb8ada437804/FLAG24e4fd5fd [2020-10-23 19:49:06,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c97c76df/3ce7dde69d6e49bbbf95bb8ada437804 [2020-10-23 19:49:06,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:49:06,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:49:06,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:49:06,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:49:06,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:49:06,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:49:06" (1/1) ... [2020-10-23 19:49:06,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cbc4df0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:06, skipping insertion in model container [2020-10-23 19:49:06,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:49:06" (1/1) ... [2020-10-23 19:49:06,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:49:06,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:49:07,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:49:07,319 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:49:07,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:49:07,445 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:49:07,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07 WrapperNode [2020-10-23 19:49:07,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:49:07,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:49:07,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:49:07,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:49:07,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (1/1) ... [2020-10-23 19:49:07,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (1/1) ... [2020-10-23 19:49:07,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (1/1) ... [2020-10-23 19:49:07,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (1/1) ... [2020-10-23 19:49:07,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (1/1) ... [2020-10-23 19:49:07,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (1/1) ... [2020-10-23 19:49:07,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (1/1) ... [2020-10-23 19:49:07,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:49:07,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:49:07,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:49:07,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:49:07,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (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 19:49:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:49:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:49:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:49:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:49:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:49:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:49:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:49:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:49:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:49:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:49:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:49:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:49:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:49:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:49:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 19:49:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:49:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:49:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:49:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:49:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:49:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:49:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:49:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:49:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:49:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:49:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:49:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:49:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:49:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:49:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:49:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:49:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:49:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:49:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:49:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:49:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:49:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:49:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:49:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:49:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:49:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:49:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:49:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:49:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:49:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:49:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:49:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:49:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:49:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:49:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:49:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:49:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:49:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:49:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:49:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:49:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:49:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:49:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:49:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:49:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:49:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:49:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:49:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:49:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:49:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:49:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:49:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:49:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:49:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:49:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:49:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:49:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:49:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:49:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:49:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:49:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:49:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:49:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:49:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:49:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:49:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-23 19:49:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:49:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:49:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:49:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:49:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:49:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:49:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:49:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:49:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:49:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:49:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:49:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:49:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:49:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:49:08,970 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:49:08,971 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:49:08,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:49:08 BoogieIcfgContainer [2020-10-23 19:49:08,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:49:08,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:49:08,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:49:08,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:49:08,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:49:06" (1/3) ... [2020-10-23 19:49:08,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a253d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:49:08, skipping insertion in model container [2020-10-23 19:49:08,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:07" (2/3) ... [2020-10-23 19:49:08,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a253d1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:49:08, skipping insertion in model container [2020-10-23 19:49:08,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:49:08" (3/3) ... [2020-10-23 19:49:08,982 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-10-23 19:49:09,000 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:49:09,005 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:49:09,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:49:09,047 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:49:09,047 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:49:09,047 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:49:09,047 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:49:09,047 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:49:09,047 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:49:09,048 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:49:09,048 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:49:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-10-23 19:49:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:49:09,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:09,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:09,091 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 19:49:09,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:09,097 INFO L82 PathProgramCache]: Analyzing trace with hash 713148475, now seen corresponding path program 1 times [2020-10-23 19:49:09,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:09,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478015710] [2020-10-23 19:49:09,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:09,176 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:09,848 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:09,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:09,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:09,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:09,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:09,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:09,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:49:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:09,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:49:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:10,063 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 19:49:10,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478015710] [2020-10-23 19:49:10,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:10,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:49:10,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382374362] [2020-10-23 19:49:10,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:49:10,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:10,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:49:10,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:49:10,088 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 3 states. [2020-10-23 19:49:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:11,982 INFO L93 Difference]: Finished difference Result 564 states and 673 transitions. [2020-10-23 19:49:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:49:11,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:49:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:12,001 INFO L225 Difference]: With dead ends: 564 [2020-10-23 19:49:12,001 INFO L226 Difference]: Without dead ends: 343 [2020-10-23 19:49:12,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:49:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-10-23 19:49:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 297. [2020-10-23 19:49:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-23 19:49:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 326 transitions. [2020-10-23 19:49:12,197 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 326 transitions. Word has length 148 [2020-10-23 19:49:12,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:12,198 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 326 transitions. [2020-10-23 19:49:12,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:49:12,198 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 326 transitions. [2020-10-23 19:49:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:49:12,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:12,203 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 19:49:12,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:49:12,204 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 19:49:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:12,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1621768087, now seen corresponding path program 1 times [2020-10-23 19:49:12,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:12,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892913176] [2020-10-23 19:49:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:12,209 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,649 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:12,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:49:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:49:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:12,737 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 19:49:12,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892913176] [2020-10-23 19:49:12,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:12,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:49:12,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574670286] [2020-10-23 19:49:12,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:49:12,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:12,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:49:12,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:49:12,741 INFO L87 Difference]: Start difference. First operand 297 states and 326 transitions. Second operand 4 states. [2020-10-23 19:49:13,512 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:15,040 INFO L93 Difference]: Finished difference Result 468 states and 532 transitions. [2020-10-23 19:49:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:49:15,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:49:15,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:15,046 INFO L225 Difference]: With dead ends: 468 [2020-10-23 19:49:15,046 INFO L226 Difference]: Without dead ends: 326 [2020-10-23 19:49:15,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:49:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-23 19:49:15,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 287. [2020-10-23 19:49:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-23 19:49:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 313 transitions. [2020-10-23 19:49:15,205 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 313 transitions. Word has length 149 [2020-10-23 19:49:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:15,209 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 313 transitions. [2020-10-23 19:49:15,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:49:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 313 transitions. [2020-10-23 19:49:15,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 19:49:15,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:15,216 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] [2020-10-23 19:49:15,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:49:15,217 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 19:49:15,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:15,218 INFO L82 PathProgramCache]: Analyzing trace with hash 787453312, now seen corresponding path program 1 times [2020-10-23 19:49:15,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:15,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572332874] [2020-10-23 19:49:15,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:15,223 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,692 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:15,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:49:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:49:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:49:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,907 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 19:49:15,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572332874] [2020-10-23 19:49:15,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:15,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:49:15,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119793315] [2020-10-23 19:49:15,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:49:15,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:15,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:49:15,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:49:15,917 INFO L87 Difference]: Start difference. First operand 287 states and 313 transitions. Second operand 10 states. [2020-10-23 19:49:16,495 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:16,980 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:17,353 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:49:17,774 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:18,146 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:18,504 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:19,607 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:22,966 INFO L93 Difference]: Finished difference Result 791 states and 926 transitions. [2020-10-23 19:49:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:49:22,967 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 19:49:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:22,973 INFO L225 Difference]: With dead ends: 791 [2020-10-23 19:49:22,974 INFO L226 Difference]: Without dead ends: 619 [2020-10-23 19:49:22,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:49:22,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2020-10-23 19:49:23,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 518. [2020-10-23 19:49:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-23 19:49:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 584 transitions. [2020-10-23 19:49:23,199 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 584 transitions. Word has length 162 [2020-10-23 19:49:23,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:23,200 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 584 transitions. [2020-10-23 19:49:23,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:49:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 584 transitions. [2020-10-23 19:49:23,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 19:49:23,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:23,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:23,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:49:23,205 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 19:49:23,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:23,206 INFO L82 PathProgramCache]: Analyzing trace with hash -35183950, now seen corresponding path program 1 times [2020-10-23 19:49:23,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:23,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207459671] [2020-10-23 19:49:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:23,209 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,631 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:23,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:49:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:49:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:49:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,795 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 19:49:23,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207459671] [2020-10-23 19:49:23,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:23,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:49:23,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712602200] [2020-10-23 19:49:23,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:49:23,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:23,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:49:23,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:49:23,799 INFO L87 Difference]: Start difference. First operand 518 states and 584 transitions. Second operand 9 states. [2020-10-23 19:49:24,517 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:25,985 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:26,394 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:26,965 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:27,410 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:27,846 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:28,376 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:28,805 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:29,619 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:31,429 INFO L93 Difference]: Finished difference Result 1449 states and 1741 transitions. [2020-10-23 19:49:31,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:49:31,430 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-23 19:49:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:31,439 INFO L225 Difference]: With dead ends: 1449 [2020-10-23 19:49:31,439 INFO L226 Difference]: Without dead ends: 1046 [2020-10-23 19:49:31,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:49:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-10-23 19:49:31,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 881. [2020-10-23 19:49:31,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-10-23 19:49:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1008 transitions. [2020-10-23 19:49:31,806 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1008 transitions. Word has length 167 [2020-10-23 19:49:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:31,807 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1008 transitions. [2020-10-23 19:49:31,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:49:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1008 transitions. [2020-10-23 19:49:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 19:49:31,811 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:31,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:31,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:49:31,812 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 19:49:31,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:31,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1498010514, now seen corresponding path program 1 times [2020-10-23 19:49:31,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:31,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [640638464] [2020-10-23 19:49:31,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:31,817 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,219 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:32,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:49:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 19:49:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:49:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:49:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,385 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 19:49:32,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [640638464] [2020-10-23 19:49:32,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:32,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:49:32,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110428101] [2020-10-23 19:49:32,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:49:32,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:32,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:49:32,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:49:32,388 INFO L87 Difference]: Start difference. First operand 881 states and 1008 transitions. Second operand 10 states. [2020-10-23 19:49:33,058 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:34,657 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:35,062 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:35,455 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:35,856 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:36,219 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:37,198 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:37,569 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:38,083 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:39,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:39,899 INFO L93 Difference]: Finished difference Result 2257 states and 2788 transitions. [2020-10-23 19:49:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:49:39,900 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-10-23 19:49:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:39,911 INFO L225 Difference]: With dead ends: 2257 [2020-10-23 19:49:39,911 INFO L226 Difference]: Without dead ends: 1491 [2020-10-23 19:49:39,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 19:49:39,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2020-10-23 19:49:40,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1223. [2020-10-23 19:49:40,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-10-23 19:49:40,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1415 transitions. [2020-10-23 19:49:40,418 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1415 transitions. Word has length 172 [2020-10-23 19:49:40,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:40,418 INFO L481 AbstractCegarLoop]: Abstraction has 1223 states and 1415 transitions. [2020-10-23 19:49:40,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:49:40,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1415 transitions. [2020-10-23 19:49:40,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 19:49:40,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:40,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:40,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:49:40,424 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 19:49:40,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:40,425 INFO L82 PathProgramCache]: Analyzing trace with hash 622146200, now seen corresponding path program 1 times [2020-10-23 19:49:40,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:40,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037530078] [2020-10-23 19:49:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:40,428 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,811 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:40,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:49:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:49:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:49:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:49:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:49:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:49:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:40,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 19:49:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:41,046 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 19:49:41,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037530078] [2020-10-23 19:49:41,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:41,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:49:41,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950697000] [2020-10-23 19:49:41,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:49:41,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:41,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:49:41,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:49:41,048 INFO L87 Difference]: Start difference. First operand 1223 states and 1415 transitions. Second operand 11 states. [2020-10-23 19:49:42,876 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:43,254 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:49:43,686 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:49:44,089 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:44,476 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:44,834 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:47,503 INFO L93 Difference]: Finished difference Result 2948 states and 3690 transitions. [2020-10-23 19:49:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 19:49:47,504 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2020-10-23 19:49:47,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:47,516 INFO L225 Difference]: With dead ends: 2948 [2020-10-23 19:49:47,516 INFO L226 Difference]: Without dead ends: 1840 [2020-10-23 19:49:47,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:49:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2020-10-23 19:49:48,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1261. [2020-10-23 19:49:48,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1261 states. [2020-10-23 19:49:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1455 transitions. [2020-10-23 19:49:48,021 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1455 transitions. Word has length 210 [2020-10-23 19:49:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:48,021 INFO L481 AbstractCegarLoop]: Abstraction has 1261 states and 1455 transitions. [2020-10-23 19:49:48,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:49:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1455 transitions. [2020-10-23 19:49:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 19:49:48,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:48,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:48,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:49:48,027 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 19:49:48,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:48,027 INFO L82 PathProgramCache]: Analyzing trace with hash 559817464, now seen corresponding path program 1 times [2020-10-23 19:49:48,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:48,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233279576] [2020-10-23 19:49:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:48,031 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,406 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:48,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:49:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:49:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:49:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:49:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:49:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:49:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 19:49:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:48,690 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 19:49:48,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233279576] [2020-10-23 19:49:48,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:48,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:49:48,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540737693] [2020-10-23 19:49:48,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:49:48,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:48,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:49:48,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:49:48,693 INFO L87 Difference]: Start difference. First operand 1261 states and 1455 transitions. Second operand 14 states. [2020-10-23 19:49:49,447 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:49,819 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:49:50,181 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:50,541 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:50,888 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:52,217 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:52,589 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:52,993 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:53,418 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:53,802 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:56,851 INFO L93 Difference]: Finished difference Result 3030 states and 3849 transitions. [2020-10-23 19:49:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 19:49:56,851 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 210 [2020-10-23 19:49:56,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:56,863 INFO L225 Difference]: With dead ends: 3030 [2020-10-23 19:49:56,864 INFO L226 Difference]: Without dead ends: 1884 [2020-10-23 19:49:56,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:49:56,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2020-10-23 19:49:57,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1285. [2020-10-23 19:49:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1285 states. [2020-10-23 19:49:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1479 transitions. [2020-10-23 19:49:57,417 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1479 transitions. Word has length 210 [2020-10-23 19:49:57,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:57,418 INFO L481 AbstractCegarLoop]: Abstraction has 1285 states and 1479 transitions. [2020-10-23 19:49:57,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:49:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1479 transitions. [2020-10-23 19:49:57,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-23 19:49:57,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:57,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:57,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:49:57,422 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 19:49:57,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:57,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1595243915, now seen corresponding path program 1 times [2020-10-23 19:49:57,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:57,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902315545] [2020-10-23 19:49:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:57,426 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,862 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:57,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:49:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-23 19:49:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:49:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:57,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:58,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:58,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:49:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:58,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:49:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:58,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:49:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:58,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-10-23 19:49:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:58,096 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 19:49:58,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902315545] [2020-10-23 19:49:58,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:58,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:49:58,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150137282] [2020-10-23 19:49:58,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:49:58,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:58,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:49:58,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:49:58,099 INFO L87 Difference]: Start difference. First operand 1285 states and 1479 transitions. Second operand 8 states. [2020-10-23 19:49:58,752 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:59,478 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:50:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:50:05,193 INFO L93 Difference]: Finished difference Result 4601 states and 5891 transitions. [2020-10-23 19:50:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-23 19:50:05,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 210 [2020-10-23 19:50:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:50:05,213 INFO L225 Difference]: With dead ends: 4601 [2020-10-23 19:50:05,213 INFO L226 Difference]: Without dead ends: 3431 [2020-10-23 19:50:05,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-10-23 19:50:05,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3431 states. [2020-10-23 19:50:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3431 to 2505. [2020-10-23 19:50:06,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2505 states. [2020-10-23 19:50:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 2911 transitions. [2020-10-23 19:50:06,504 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 2911 transitions. Word has length 210 [2020-10-23 19:50:06,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:50:06,505 INFO L481 AbstractCegarLoop]: Abstraction has 2505 states and 2911 transitions. [2020-10-23 19:50:06,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:50:06,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 2911 transitions. [2020-10-23 19:50:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 19:50:06,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:50:06,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:50:06,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:50:06,510 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 19:50:06,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:50:06,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1703597288, now seen corresponding path program 1 times [2020-10-23 19:50:06,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:50:06,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098946697] [2020-10-23 19:50:06,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:50:06,515 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:50:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:50:06,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:50:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:50:06,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:50:06,909 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:50:06,910 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:50:06,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:50:06,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:50:06 BoogieIcfgContainer [2020-10-23 19:50:06,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:50:06,938 INFO L168 Benchmark]: Toolchain (without parser) took 60163.08 ms. Allocated memory was 155.2 MB in the beginning and 1.1 GB in the end (delta: 897.6 MB). Free memory was 129.9 MB in the beginning and 898.1 MB in the end (delta: -768.2 MB). Peak memory consumption was 130.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:50:06,939 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:50:06,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.97 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 107.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:50:06,940 INFO L168 Benchmark]: Boogie Preprocessor took 146.10 ms. Allocated memory is still 155.2 MB. Free memory was 107.3 MB in the beginning and 137.4 MB in the end (delta: -30.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:50:06,941 INFO L168 Benchmark]: RCFGBuilder took 1373.29 ms. Allocated memory was 155.2 MB in the beginning and 192.9 MB in the end (delta: 37.7 MB). Free memory was 136.7 MB in the beginning and 119.8 MB in the end (delta: 16.9 MB). Peak memory consumption was 58.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:50:06,942 INFO L168 Benchmark]: TraceAbstraction took 57960.86 ms. Allocated memory was 192.9 MB in the beginning and 1.1 GB in the end (delta: 859.8 MB). Free memory was 119.2 MB in the beginning and 898.1 MB in the end (delta: -778.8 MB). Peak memory consumption was 81.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:50:06,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 155.2 MB. Free memory is still 129.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 660.97 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 107.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.10 ms. Allocated memory is still 155.2 MB. Free memory was 107.3 MB in the beginning and 137.4 MB in the end (delta: -30.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1373.29 ms. Allocated memory was 155.2 MB in the beginning and 192.9 MB in the end (delta: 37.7 MB). Free memory was 136.7 MB in the beginning and 119.8 MB in the end (delta: 16.9 MB). Peak memory consumption was 58.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 57960.86 ms. Allocated memory was 192.9 MB in the beginning and 1.1 GB in the end (delta: 859.8 MB). Free memory was 119.2 MB in the beginning and 898.1 MB in the end (delta: -778.8 MB). Peak memory consumption was 81.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; [L886] int retValue_acc ; [L887] int tmp ; [L891] FCALL select_helpers() [L892] FCALL select_features() [L893] CALL, EXPR valid_product() [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); [L893] RET, EXPR valid_product() [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) [L897] FCALL setup() [L898] CALL runTest() [L880] CALL test() [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 [L424] COND TRUE 1 [L426] COND TRUE splverifierCounter < 4 [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) [L436] CALL waterRise() [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 [L436] RET waterRise() [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) [L446] CALL changeMethaneLevel() [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 [L446] RET changeMethaneLevel() [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L456] CALL startSystem() [L734] systemActive = 1 [L456] RET startSystem() [L471] CALL timeShift() [L500] COND FALSE !(\read(pumpRunning)) [L507] COND TRUE \read(systemActive) [L509] CALL processEnvironment() [L581] int tmp ; [L584] COND FALSE !(\read(pumpRunning)) [L599] CALL processEnvironment__wrappee__lowWaterSensor() [L555] int tmp ; [L558] COND FALSE !(\read(pumpRunning)) [L573] CALL processEnvironment__wrappee__highWaterSensor() [L529] int tmp ; [L532] COND TRUE ! pumpRunning [L534] CALL, EXPR isHighWaterLevel() [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L684] CALL, EXPR isHighWaterSensorDry() [L990] int retValue_acc ; [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); [L684] RET, EXPR isHighWaterSensorDry() [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); [L534] RET, EXPR isHighWaterLevel() [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L538] CALL activatePump() [L609] pumpRunning = 1 [L538] RET activatePump() [L573] RET processEnvironment__wrappee__highWaterSensor() [L599] RET processEnvironment__wrappee__lowWaterSensor() [L509] RET processEnvironment() [L515] CALL __utac_acc__Specification1_spec__1() [L779] int tmp ; [L780] int tmp___0 ; [L784] CALL, EXPR isMethaneLevelCritical() [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); [L784] RET, EXPR isMethaneLevelCritical() [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L788] CALL, EXPR isPumpRunning() [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); [L788] RET, EXPR isPumpRunning() [L788] tmp___0 = isPumpRunning() [L790] COND TRUE \read(tmp___0) [L792] CALL __automaton_fail() [L808] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product56.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 672 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 57.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 48.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2298 SDtfs, 5053 SDslu, 4581 SDs, 0 SdLazy, 10272 SolverSat, 1723 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 18.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2505occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 2723 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...