/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_spec2_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:53:07,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:53:07,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:53:07,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:53:07,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:53:07,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:53:07,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:53:07,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:53:07,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:53:07,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:53:07,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:53:07,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:53:07,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:53:07,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:53:07,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:53:07,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:53:07,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:53:07,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:53:07,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:53:07,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:53:07,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:53:07,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:53:07,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:53:07,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:53:07,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:53:07,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:53:07,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:53:07,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:53:07,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:53:07,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:53:07,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:53:07,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:53:07,954 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:53:07,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:53:07,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:53:07,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:53:07,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:53:07,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:53:07,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:53:07,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:53:07,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:53:07,979 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 19:53:08,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:53:08,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:53:08,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:53:08,008 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:53:08,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:53:08,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:53:08,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:53:08,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:53:08,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:53:08,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:53:08,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:53:08,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:53:08,011 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:53:08,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:53:08,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:53:08,012 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:53:08,012 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:53:08,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:53:08,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:53:08,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:53:08,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:53:08,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:53:08,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:53:08,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:53:08,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:53:08,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:53:08,423 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:53:08,424 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:53:08,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2020-10-23 19:53:08,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04def8305/9b3ab6d0facb4d038718401729b0f785/FLAGd37cf64e6 [2020-10-23 19:53:09,267 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:53:09,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product43.cil.c [2020-10-23 19:53:09,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04def8305/9b3ab6d0facb4d038718401729b0f785/FLAGd37cf64e6 [2020-10-23 19:53:09,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04def8305/9b3ab6d0facb4d038718401729b0f785 [2020-10-23 19:53:09,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:53:09,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:53:09,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:09,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:53:09,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:53:09,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:09" (1/1) ... [2020-10-23 19:53:09,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341b7450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:09, skipping insertion in model container [2020-10-23 19:53:09,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:53:09" (1/1) ... [2020-10-23 19:53:09,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:53:09,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:53:09,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:09,978 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:53:10,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:53:10,132 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:53:10,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10 WrapperNode [2020-10-23 19:53:10,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:53:10,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:53:10,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:53:10,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:53:10,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (1/1) ... [2020-10-23 19:53:10,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (1/1) ... [2020-10-23 19:53:10,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (1/1) ... [2020-10-23 19:53:10,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (1/1) ... [2020-10-23 19:53:10,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (1/1) ... [2020-10-23 19:53:10,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (1/1) ... [2020-10-23 19:53:10,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (1/1) ... [2020-10-23 19:53:10,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:53:10,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:53:10,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:53:10,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:53:10,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (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 19:53:10,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:53:10,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:53:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:53:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:53:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:53:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:53:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:53:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:53:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:53:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:53:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:53:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:53:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:53:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:53:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:53:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:53:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:53:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:53:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:53:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:53:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:53:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:53:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:53:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:53:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:53:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:53:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:53:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:53:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:53:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:53:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:53:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:53:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:53:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:53:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:53:10,363 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:53:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:53:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:53:10,364 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:53:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:53:10,369 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:53:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:53:10,370 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:53:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:53:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:53:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:53:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:53:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:53:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:53:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:53:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:53:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:53:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:53:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:53:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 19:53:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:53:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:53:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:53:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:53:11,731 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:53:11,732 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:53:11,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:11 BoogieIcfgContainer [2020-10-23 19:53:11,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:53:11,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:53:11,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:53:11,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:53:11,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:53:09" (1/3) ... [2020-10-23 19:53:11,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74041131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:11, skipping insertion in model container [2020-10-23 19:53:11,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:53:10" (2/3) ... [2020-10-23 19:53:11,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74041131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:53:11, skipping insertion in model container [2020-10-23 19:53:11,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:53:11" (3/3) ... [2020-10-23 19:53:11,745 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2020-10-23 19:53:11,757 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:53:11,762 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:53:11,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:53:11,800 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:53:11,801 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:53:11,801 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:53:11,801 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:53:11,801 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:53:11,801 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:53:11,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:53:11,802 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:53:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-10-23 19:53:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 19:53:11,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:11,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:11,850 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 19:53:11,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:11,857 INFO L82 PathProgramCache]: Analyzing trace with hash -841221585, now seen corresponding path program 1 times [2020-10-23 19:53:11,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:11,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804779787] [2020-10-23 19:53:11,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:11,938 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,634 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:12,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:53:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:12,800 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 19:53:12,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804779787] [2020-10-23 19:53:12,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:12,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:53:12,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859259743] [2020-10-23 19:53:12,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:53:12,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:12,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:53:12,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:53:12,828 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-10-23 19:53:14,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:14,466 INFO L93 Difference]: Finished difference Result 499 states and 588 transitions. [2020-10-23 19:53:14,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 19:53:14,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 19:53:14,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:14,485 INFO L225 Difference]: With dead ends: 499 [2020-10-23 19:53:14,486 INFO L226 Difference]: Without dead ends: 318 [2020-10-23 19:53:14,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:53:14,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-23 19:53:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 268. [2020-10-23 19:53:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-23 19:53:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-10-23 19:53:14,716 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 154 [2020-10-23 19:53:14,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:14,717 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-10-23 19:53:14,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:53:14,718 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-10-23 19:53:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 19:53:14,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:14,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:14,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:53:14,724 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 19:53:14,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:14,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1715769147, now seen corresponding path program 1 times [2020-10-23 19:53:14,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:14,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773233367] [2020-10-23 19:53:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:14,730 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,232 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:15,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:53:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:53:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:15,367 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 19:53:15,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773233367] [2020-10-23 19:53:15,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:15,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 19:53:15,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009758548] [2020-10-23 19:53:15,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 19:53:15,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:15,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 19:53:15,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:53:15,370 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 5 states. [2020-10-23 19:53:16,215 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:17,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:17,457 INFO L93 Difference]: Finished difference Result 416 states and 469 transitions. [2020-10-23 19:53:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 19:53:17,459 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 19:53:17,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:17,463 INFO L225 Difference]: With dead ends: 416 [2020-10-23 19:53:17,464 INFO L226 Difference]: Without dead ends: 307 [2020-10-23 19:53:17,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:53:17,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-23 19:53:17,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 258. [2020-10-23 19:53:17,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-23 19:53:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 277 transitions. [2020-10-23 19:53:17,604 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 277 transitions. Word has length 155 [2020-10-23 19:53:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:17,605 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 277 transitions. [2020-10-23 19:53:17,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 19:53:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 277 transitions. [2020-10-23 19:53:17,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-23 19:53:17,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:17,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:17,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:53:17,609 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 19:53:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:17,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1013296111, now seen corresponding path program 1 times [2020-10-23 19:53:17,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:17,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505499525] [2020-10-23 19:53:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:17,615 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,212 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:18,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:53:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:53:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:18,467 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 19:53:18,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505499525] [2020-10-23 19:53:18,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:18,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:53:18,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993465817] [2020-10-23 19:53:18,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:53:18,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:18,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:53:18,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:53:18,471 INFO L87 Difference]: Start difference. First operand 258 states and 277 transitions. Second operand 10 states. [2020-10-23 19:53:19,237 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:19,726 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:20,105 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:53:20,508 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:20,909 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:21,284 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:22,626 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:25,245 INFO L93 Difference]: Finished difference Result 680 states and 783 transitions. [2020-10-23 19:53:25,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:53:25,250 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-23 19:53:25,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:25,256 INFO L225 Difference]: With dead ends: 680 [2020-10-23 19:53:25,256 INFO L226 Difference]: Without dead ends: 542 [2020-10-23 19:53:25,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:53:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-10-23 19:53:25,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 451. [2020-10-23 19:53:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-10-23 19:53:25,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 500 transitions. [2020-10-23 19:53:25,497 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 500 transitions. Word has length 164 [2020-10-23 19:53:25,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:25,498 INFO L481 AbstractCegarLoop]: Abstraction has 451 states and 500 transitions. [2020-10-23 19:53:25,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:53:25,498 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 500 transitions. [2020-10-23 19:53:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 19:53:25,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:25,501 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 19:53:25,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:53:25,501 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 19:53:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:25,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1540286820, now seen corresponding path program 1 times [2020-10-23 19:53:25,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:25,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578310081] [2020-10-23 19:53:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:25,506 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:25,942 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:25,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:53:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:53:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 19:53:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 19:53:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:26,156 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 19:53:26,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578310081] [2020-10-23 19:53:26,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:26,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 19:53:26,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56204585] [2020-10-23 19:53:26,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 19:53:26,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:26,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 19:53:26,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:53:26,158 INFO L87 Difference]: Start difference. First operand 451 states and 500 transitions. Second operand 7 states. [2020-10-23 19:53:26,801 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:28,922 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:29,758 INFO L93 Difference]: Finished difference Result 1122 states and 1327 transitions. [2020-10-23 19:53:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:53:29,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-10-23 19:53:29,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:29,765 INFO L225 Difference]: With dead ends: 1122 [2020-10-23 19:53:29,765 INFO L226 Difference]: Without dead ends: 791 [2020-10-23 19:53:29,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:53:29,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-10-23 19:53:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 661. [2020-10-23 19:53:30,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-10-23 19:53:30,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 734 transitions. [2020-10-23 19:53:30,081 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 734 transitions. Word has length 172 [2020-10-23 19:53:30,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:30,082 INFO L481 AbstractCegarLoop]: Abstraction has 661 states and 734 transitions. [2020-10-23 19:53:30,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 19:53:30,082 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 734 transitions. [2020-10-23 19:53:30,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-23 19:53:30,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:30,085 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] [2020-10-23 19:53:30,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:53:30,085 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 19:53:30,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:30,086 INFO L82 PathProgramCache]: Analyzing trace with hash -987501602, now seen corresponding path program 1 times [2020-10-23 19:53:30,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:30,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386753612] [2020-10-23 19:53:30,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:30,089 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,548 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:30,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 19:53:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:53:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:53:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:30,718 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 19:53:30,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386753612] [2020-10-23 19:53:30,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:30,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:53:30,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793460291] [2020-10-23 19:53:30,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:53:30,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:30,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:53:30,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:53:30,720 INFO L87 Difference]: Start difference. First operand 661 states and 734 transitions. Second operand 10 states. [2020-10-23 19:53:31,422 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:32,897 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:33,339 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:33,790 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:34,204 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:34,599 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:34,973 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:35,360 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:35,992 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:38,309 INFO L93 Difference]: Finished difference Result 1785 states and 2094 transitions. [2020-10-23 19:53:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 19:53:38,309 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-10-23 19:53:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:38,319 INFO L225 Difference]: With dead ends: 1785 [2020-10-23 19:53:38,319 INFO L226 Difference]: Without dead ends: 1244 [2020-10-23 19:53:38,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-23 19:53:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2020-10-23 19:53:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1097. [2020-10-23 19:53:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2020-10-23 19:53:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1223 transitions. [2020-10-23 19:53:38,842 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1223 transitions. Word has length 173 [2020-10-23 19:53:38,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:38,843 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1223 transitions. [2020-10-23 19:53:38,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:53:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1223 transitions. [2020-10-23 19:53:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:53:38,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:38,846 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] [2020-10-23 19:53:38,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:53:38,847 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 19:53:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:38,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1017411910, now seen corresponding path program 1 times [2020-10-23 19:53:38,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:38,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552597509] [2020-10-23 19:53:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:38,851 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,263 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:39,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 19:53:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:53:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 19:53:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:39,451 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 19:53:39,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552597509] [2020-10-23 19:53:39,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:39,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:53:39,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290710829] [2020-10-23 19:53:39,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:53:39,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:39,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:53:39,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:53:39,455 INFO L87 Difference]: Start difference. First operand 1097 states and 1223 transitions. Second operand 11 states. [2020-10-23 19:53:40,131 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:41,860 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:42,332 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:42,809 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:43,213 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:53:43,590 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:44,611 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:44,978 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:45,430 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:46,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:46,891 INFO L93 Difference]: Finished difference Result 2344 states and 2726 transitions. [2020-10-23 19:53:46,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 19:53:46,891 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2020-10-23 19:53:46,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:46,901 INFO L225 Difference]: With dead ends: 2344 [2020-10-23 19:53:46,929 INFO L226 Difference]: Without dead ends: 1367 [2020-10-23 19:53:46,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 19:53:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-10-23 19:53:47,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1091. [2020-10-23 19:53:47,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2020-10-23 19:53:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1211 transitions. [2020-10-23 19:53:47,366 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1211 transitions. Word has length 178 [2020-10-23 19:53:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:47,367 INFO L481 AbstractCegarLoop]: Abstraction has 1091 states and 1211 transitions. [2020-10-23 19:53:47,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:53:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1211 transitions. [2020-10-23 19:53:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-23 19:53:47,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:47,373 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:47,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:53:47,373 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 19:53:47,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:47,374 INFO L82 PathProgramCache]: Analyzing trace with hash -325423169, now seen corresponding path program 1 times [2020-10-23 19:53:47,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:47,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947817388] [2020-10-23 19:53:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:47,378 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,813 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:47,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:53:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:53:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:47,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:53:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:48,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:53:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:48,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:53:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:48,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:53:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:48,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:53:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:48,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 19:53:48,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:48,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 19:53:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:48,089 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 19:53:48,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947817388] [2020-10-23 19:53:48,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:48,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:53:48,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542270965] [2020-10-23 19:53:48,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:53:48,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:48,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:53:48,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:53:48,093 INFO L87 Difference]: Start difference. First operand 1091 states and 1211 transitions. Second operand 14 states. [2020-10-23 19:53:48,880 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:49,289 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:53:49,707 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:50,119 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:50,486 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:51,701 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:52,097 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:52,513 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:52,940 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:53,324 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:55,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:55,654 INFO L93 Difference]: Finished difference Result 2494 states and 2985 transitions. [2020-10-23 19:53:55,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:53:55,654 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 224 [2020-10-23 19:53:55,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:55,667 INFO L225 Difference]: With dead ends: 2494 [2020-10-23 19:53:55,667 INFO L226 Difference]: Without dead ends: 1523 [2020-10-23 19:53:55,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:53:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2020-10-23 19:53:56,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1115. [2020-10-23 19:53:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1115 states. [2020-10-23 19:53:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1235 transitions. [2020-10-23 19:53:56,258 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1235 transitions. Word has length 224 [2020-10-23 19:53:56,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:56,259 INFO L481 AbstractCegarLoop]: Abstraction has 1115 states and 1235 transitions. [2020-10-23 19:53:56,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:53:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1235 transitions. [2020-10-23 19:53:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-23 19:53:56,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:56,268 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:56,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:53:56,268 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 19:53:56,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:56,269 INFO L82 PathProgramCache]: Analyzing trace with hash -2009531361, now seen corresponding path program 1 times [2020-10-23 19:53:56,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:56,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783397960] [2020-10-23 19:53:56,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:56,274 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,653 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:53:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:53:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:53:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:53:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:53:56,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:53:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:53:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:53:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 19:53:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 19:53:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:56,878 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 19:53:56,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783397960] [2020-10-23 19:53:56,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:56,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:53:56,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292760804] [2020-10-23 19:53:56,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:53:56,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:56,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:53:56,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:53:56,881 INFO L87 Difference]: Start difference. First operand 1115 states and 1235 transitions. Second operand 11 states. [2020-10-23 19:53:58,561 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:53:58,972 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:53:59,389 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 19:53:59,838 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:00,254 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:00,651 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:54:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:02,262 INFO L93 Difference]: Finished difference Result 2538 states and 3025 transitions. [2020-10-23 19:54:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:54:02,263 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2020-10-23 19:54:02,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:02,272 INFO L225 Difference]: With dead ends: 2538 [2020-10-23 19:54:02,272 INFO L226 Difference]: Without dead ends: 1543 [2020-10-23 19:54:02,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:54:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-10-23 19:54:02,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1147. [2020-10-23 19:54:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2020-10-23 19:54:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1267 transitions. [2020-10-23 19:54:02,890 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1267 transitions. Word has length 224 [2020-10-23 19:54:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:02,890 INFO L481 AbstractCegarLoop]: Abstraction has 1147 states and 1267 transitions. [2020-10-23 19:54:02,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:54:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1267 transitions. [2020-10-23 19:54:02,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-23 19:54:02,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:02,895 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:02,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:54:02,896 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 19:54:02,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:02,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1914789154, now seen corresponding path program 1 times [2020-10-23 19:54:02,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:02,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881070656] [2020-10-23 19:54:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:02,900 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,294 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:03,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:54:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:54:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 19:54:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 19:54:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:03,522 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 19:54:03,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881070656] [2020-10-23 19:54:03,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:03,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:54:03,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011513763] [2020-10-23 19:54:03,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:54:03,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:03,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:54:03,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:54:03,524 INFO L87 Difference]: Start difference. First operand 1147 states and 1267 transitions. Second operand 8 states. [2020-10-23 19:54:04,236 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:05,032 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:09,082 INFO L93 Difference]: Finished difference Result 3767 states and 4576 transitions. [2020-10-23 19:54:09,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 19:54:09,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2020-10-23 19:54:09,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:09,100 INFO L225 Difference]: With dead ends: 3767 [2020-10-23 19:54:09,100 INFO L226 Difference]: Without dead ends: 2740 [2020-10-23 19:54:09,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:54:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2020-10-23 19:54:10,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2189. [2020-10-23 19:54:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2020-10-23 19:54:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2473 transitions. [2020-10-23 19:54:10,032 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2473 transitions. Word has length 224 [2020-10-23 19:54:10,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:10,033 INFO L481 AbstractCegarLoop]: Abstraction has 2189 states and 2473 transitions. [2020-10-23 19:54:10,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:54:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2473 transitions. [2020-10-23 19:54:10,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-23 19:54:10,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:10,038 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:10,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:54:10,039 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:10,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:10,039 INFO L82 PathProgramCache]: Analyzing trace with hash 915482243, now seen corresponding path program 1 times [2020-10-23 19:54:10,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:10,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974456598] [2020-10-23 19:54:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:10,043 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:54:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,457 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:54:10,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:54:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:54:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:54:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:54:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:54:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:54:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:54:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:54:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:54:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:54:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:54:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:54:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:54:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:54:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 19:54:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-23 19:54:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:54:11,032 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 19:54:11,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974456598] [2020-10-23 19:54:11,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:54:11,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-23 19:54:11,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808355876] [2020-10-23 19:54:11,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-23 19:54:11,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:54:11,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-23 19:54:11,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:54:11,034 INFO L87 Difference]: Start difference. First operand 2189 states and 2473 transitions. Second operand 21 states. [2020-10-23 19:54:11,836 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:12,381 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:54:12,803 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 19:54:13,228 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:13,638 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:54:14,034 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:15,215 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:54:16,361 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:16,828 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:17,518 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:17,985 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:19,972 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:20,551 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:21,018 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:21,472 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:21,980 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:22,499 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:22,948 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:54:23,436 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-23 19:54:24,294 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 19:54:25,167 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 211 [2020-10-23 19:54:26,008 WARN L193 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2020-10-23 19:54:29,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:54:29,051 INFO L93 Difference]: Finished difference Result 4715 states and 5529 transitions. [2020-10-23 19:54:29,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-23 19:54:29,057 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 229 [2020-10-23 19:54:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:54:29,075 INFO L225 Difference]: With dead ends: 4715 [2020-10-23 19:54:29,075 INFO L226 Difference]: Without dead ends: 2646 [2020-10-23 19:54:29,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=793, Invalid=3367, Unknown=0, NotChecked=0, Total=4160 [2020-10-23 19:54:29,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2020-10-23 19:54:29,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2115. [2020-10-23 19:54:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2115 states. [2020-10-23 19:54:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2359 transitions. [2020-10-23 19:54:29,965 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2359 transitions. Word has length 229 [2020-10-23 19:54:29,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:54:29,966 INFO L481 AbstractCegarLoop]: Abstraction has 2115 states and 2359 transitions. [2020-10-23 19:54:29,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-23 19:54:29,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2359 transitions. [2020-10-23 19:54:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-23 19:54:29,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:54:29,973 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:54:29,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:54:29,974 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:54:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:54:29,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2141326574, now seen corresponding path program 1 times [2020-10-23 19:54:29,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:54:29,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457594702] [2020-10-23 19:54:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:54:29,992 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 19:54:29,998 INFO L168 Benchmark]: Toolchain (without parser) took 80457.60 ms. Allocated memory was 161.5 MB in the beginning and 1.1 GB in the end (delta: 943.7 MB). Free memory was 137.2 MB in the beginning and 1.0 GB in the end (delta: -880.1 MB). Peak memory consumption was 64.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:29,998 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 161.5 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:54:29,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.67 ms. Allocated memory is still 161.5 MB. Free memory was 136.5 MB in the beginning and 115.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:30,000 INFO L168 Benchmark]: Boogie Preprocessor took 91.01 ms. Allocated memory is still 161.5 MB. Free memory was 115.3 MB in the beginning and 111.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:30,001 INFO L168 Benchmark]: RCFGBuilder took 1509.06 ms. Allocated memory was 161.5 MB in the beginning and 210.8 MB in the end (delta: 49.3 MB). Free memory was 111.4 MB in the beginning and 153.6 MB in the end (delta: -42.2 MB). Peak memory consumption was 37.4 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:30,004 INFO L168 Benchmark]: TraceAbstraction took 78259.30 ms. Allocated memory was 210.8 MB in the beginning and 1.1 GB in the end (delta: 894.4 MB). Free memory was 153.0 MB in the beginning and 1.0 GB in the end (delta: -864.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:54:30,009 INFO L339 ainManager$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 161.5 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 583.67 ms. Allocated memory is still 161.5 MB. Free memory was 136.5 MB in the beginning and 115.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.01 ms. Allocated memory is still 161.5 MB. Free memory was 115.3 MB in the beginning and 111.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1509.06 ms. Allocated memory was 161.5 MB in the beginning and 210.8 MB in the end (delta: 49.3 MB). Free memory was 111.4 MB in the beginning and 153.6 MB in the end (delta: -42.2 MB). Peak memory consumption was 37.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 78259.30 ms. Allocated memory was 210.8 MB in the beginning and 1.1 GB in the end (delta: 894.4 MB). Free memory was 153.0 MB in the beginning and 1.0 GB in the end (delta: -864.3 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...