/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_spec5_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:19:22,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:19:22,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:19:22,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:19:22,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:19:22,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:19:22,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:19:22,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:19:22,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:19:22,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:19:22,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:19:22,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:19:22,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:19:22,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:19:22,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:19:22,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:19:22,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:19:22,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:19:22,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:19:22,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:19:22,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:19:22,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:19:22,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:19:22,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:19:22,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:19:22,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:19:22,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:19:22,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:19:22,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:19:22,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:19:22,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:19:22,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:19:22,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:19:22,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:19:22,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:19:22,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:19:22,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:19:22,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:19:22,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:19:22,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:19:22,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:19:22,428 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 20:19:22,459 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:19:22,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:19:22,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:19:22,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:19:22,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:19:22,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:19:22,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:19:22,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:19:22,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:19:22,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:19:22,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:19:22,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:19:22,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:19:22,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:19:22,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:19:22,464 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:19:22,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:19:22,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:19:22,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:19:22,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:19:22,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:19:22,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:19:22,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:19:22,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:19:22,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:19:22,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:19:22,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:19:22,908 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:19:22,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-10-23 20:19:22,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10df4acf9/f726ffb24af64bbe95f5ededb44778ab/FLAG872d06017 [2020-10-23 20:19:23,556 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:19:23,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-10-23 20:19:23,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10df4acf9/f726ffb24af64bbe95f5ededb44778ab/FLAG872d06017 [2020-10-23 20:19:23,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10df4acf9/f726ffb24af64bbe95f5ededb44778ab [2020-10-23 20:19:23,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:19:23,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:19:23,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:23,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:19:23,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:19:23,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:23" (1/1) ... [2020-10-23 20:19:23,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa3e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23, skipping insertion in model container [2020-10-23 20:19:23,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:23" (1/1) ... [2020-10-23 20:19:23,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:19:23,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:19:24,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:24,350 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:19:24,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:24,532 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:19:24,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24 WrapperNode [2020-10-23 20:19:24,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:24,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:19:24,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:19:24,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:19:24,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (1/1) ... [2020-10-23 20:19:24,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (1/1) ... [2020-10-23 20:19:24,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (1/1) ... [2020-10-23 20:19:24,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (1/1) ... [2020-10-23 20:19:24,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (1/1) ... [2020-10-23 20:19:24,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (1/1) ... [2020-10-23 20:19:24,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (1/1) ... [2020-10-23 20:19:24,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:19:24,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:19:24,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:19:24,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:19:24,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (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 20:19:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:19:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:19:24,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:19:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:19:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:19:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:19:24,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:19:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:19:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:19:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:24,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:19:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:19:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:19:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:19:24,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:19:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:19:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:19:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:19:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:19:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:19:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:19:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:19:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:19:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:19:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:19:24,772 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:19:24,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:19:24,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:19:24,772 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:19:24,772 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:19:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:19:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:19:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:19:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:19:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:19:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:24,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:24,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:19:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:19:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:19:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:19:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:19:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:19:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:19:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:19:24,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:19:24,776 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:19:24,776 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:19:24,776 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:19:24,776 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:19:24,776 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:19:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:19:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:19:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:19:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:19:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:19:24,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:19:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:19:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:19:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:19:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:19:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:19:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:19:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:19:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:19:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:19:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:19:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:19:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:19:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:19:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:19:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:19:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:19:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:19:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:19:24,781 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:19:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:19:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:19:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:19:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:19:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:19:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:19:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:19:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:19:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:19:26,131 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:19:26,131 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:19:26,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:26 BoogieIcfgContainer [2020-10-23 20:19:26,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:19:26,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:19:26,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:19:26,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:19:26,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:23" (1/3) ... [2020-10-23 20:19:26,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3278e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:26, skipping insertion in model container [2020-10-23 20:19:26,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:24" (2/3) ... [2020-10-23 20:19:26,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3278e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:26, skipping insertion in model container [2020-10-23 20:19:26,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:26" (3/3) ... [2020-10-23 20:19:26,143 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-10-23 20:19:26,154 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:19:26,160 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:19:26,172 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:19:26,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:19:26,193 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:19:26,193 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:19:26,193 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:19:26,193 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:19:26,193 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:19:26,194 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:19:26,194 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:19:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states. [2020-10-23 20:19:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:19:26,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:26,238 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] [2020-10-23 20:19:26,238 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 20:19:26,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:26,245 INFO L82 PathProgramCache]: Analyzing trace with hash 634944541, now seen corresponding path program 1 times [2020-10-23 20:19:26,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:26,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382438617] [2020-10-23 20:19:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:26,322 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,082 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:27,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:19:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:19:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:19:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:27,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382438617] [2020-10-23 20:19:27,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:27,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:19:27,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15977095] [2020-10-23 20:19:27,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:19:27,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:27,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:19:27,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:19:27,331 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 4 states. [2020-10-23 20:19:28,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:28,916 INFO L93 Difference]: Finished difference Result 468 states and 550 transitions. [2020-10-23 20:19:28,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:19:28,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-23 20:19:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:28,934 INFO L225 Difference]: With dead ends: 468 [2020-10-23 20:19:28,934 INFO L226 Difference]: Without dead ends: 300 [2020-10-23 20:19:28,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 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 20:19:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-23 20:19:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 255. [2020-10-23 20:19:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-10-23 20:19:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 276 transitions. [2020-10-23 20:19:29,113 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 276 transitions. Word has length 166 [2020-10-23 20:19:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:29,114 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 276 transitions. [2020-10-23 20:19:29,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:19:29,114 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 276 transitions. [2020-10-23 20:19:29,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:19:29,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:29,120 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] [2020-10-23 20:19:29,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:19:29,121 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 20:19:29,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:29,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2115354735, now seen corresponding path program 1 times [2020-10-23 20:19:29,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:29,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642291564] [2020-10-23 20:19:29,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:29,131 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,639 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:29,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:19:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:19:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:19:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:29,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:29,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642291564] [2020-10-23 20:19:29,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:29,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:19:29,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327028906] [2020-10-23 20:19:29,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:19:29,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:29,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:19:29,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:19:29,779 INFO L87 Difference]: Start difference. First operand 255 states and 276 transitions. Second operand 5 states. [2020-10-23 20:19:30,654 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:31,763 INFO L93 Difference]: Finished difference Result 385 states and 432 transitions. [2020-10-23 20:19:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:19:31,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-23 20:19:31,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:31,774 INFO L225 Difference]: With dead ends: 385 [2020-10-23 20:19:31,777 INFO L226 Difference]: Without dead ends: 289 [2020-10-23 20:19:31,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 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 20:19:31,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-10-23 20:19:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 245. [2020-10-23 20:19:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-23 20:19:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2020-10-23 20:19:31,906 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 167 [2020-10-23 20:19:31,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:31,907 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2020-10-23 20:19:31,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:19:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2020-10-23 20:19:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 20:19:31,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:31,912 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] [2020-10-23 20:19:31,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:19:31,912 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 20:19:31,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:31,915 INFO L82 PathProgramCache]: Analyzing trace with hash 54139327, now seen corresponding path program 1 times [2020-10-23 20:19:31,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:31,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349770461] [2020-10-23 20:19:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:31,920 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,448 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:32,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:32,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:19:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:19:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:19:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:32,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:32,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349770461] [2020-10-23 20:19:32,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:32,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:19:32,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102383954] [2020-10-23 20:19:32,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:19:32,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:32,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:19:32,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:19:32,697 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 10 states. [2020-10-23 20:19:33,391 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:19:33,872 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:19:34,281 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:19:34,670 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:35,083 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:19:35,474 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:36,862 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:38,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:38,564 INFO L93 Difference]: Finished difference Result 633 states and 724 transitions. [2020-10-23 20:19:38,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:19:38,566 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-10-23 20:19:38,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:38,571 INFO L225 Difference]: With dead ends: 633 [2020-10-23 20:19:38,571 INFO L226 Difference]: Without dead ends: 508 [2020-10-23 20:19:38,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:19:38,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-10-23 20:19:38,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 429. [2020-10-23 20:19:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-10-23 20:19:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 477 transitions. [2020-10-23 20:19:38,786 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 477 transitions. Word has length 176 [2020-10-23 20:19:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:38,787 INFO L481 AbstractCegarLoop]: Abstraction has 429 states and 477 transitions. [2020-10-23 20:19:38,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:19:38,789 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 477 transitions. [2020-10-23 20:19:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-23 20:19:38,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:38,794 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] [2020-10-23 20:19:38,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:19:38,795 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 20:19:38,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:38,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1875000584, now seen corresponding path program 1 times [2020-10-23 20:19:38,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:38,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946621979] [2020-10-23 20:19:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:38,802 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,252 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:39,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:19:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:19:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:19:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 20:19:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 20:19:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:39,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946621979] [2020-10-23 20:19:39,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:39,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:19:39,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512587079] [2020-10-23 20:19:39,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:19:39,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:39,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:19:39,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:19:39,492 INFO L87 Difference]: Start difference. First operand 429 states and 477 transitions. Second operand 7 states. [2020-10-23 20:19:40,126 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:19:42,248 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:42,882 INFO L93 Difference]: Finished difference Result 1070 states and 1269 transitions. [2020-10-23 20:19:42,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:19:42,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-10-23 20:19:42,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:42,895 INFO L225 Difference]: With dead ends: 1070 [2020-10-23 20:19:42,895 INFO L226 Difference]: Without dead ends: 761 [2020-10-23 20:19:42,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:19:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-23 20:19:43,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 637. [2020-10-23 20:19:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2020-10-23 20:19:43,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 711 transitions. [2020-10-23 20:19:43,215 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 711 transitions. Word has length 184 [2020-10-23 20:19:43,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:43,215 INFO L481 AbstractCegarLoop]: Abstraction has 637 states and 711 transitions. [2020-10-23 20:19:43,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:19:43,216 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 711 transitions. [2020-10-23 20:19:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-23 20:19:43,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:43,219 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] [2020-10-23 20:19:43,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:19:43,219 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 20:19:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:43,220 INFO L82 PathProgramCache]: Analyzing trace with hash -2111359008, now seen corresponding path program 1 times [2020-10-23 20:19:43,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:43,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280471600] [2020-10-23 20:19:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:43,225 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,711 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:43,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 20:19:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:19:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-23 20:19:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-23 20:19:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:19:43,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280471600] [2020-10-23 20:19:43,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:43,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:19:43,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920435008] [2020-10-23 20:19:43,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:19:43,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:43,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:19:43,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:19:43,916 INFO L87 Difference]: Start difference. First operand 637 states and 711 transitions. Second operand 10 states. [2020-10-23 20:19:44,685 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:19:45,823 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:46,249 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:19:47,624 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:19:48,076 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:48,545 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:49,080 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:49,520 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:19:49,927 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:50,632 INFO L93 Difference]: Finished difference Result 1239 states and 1428 transitions. [2020-10-23 20:19:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 20:19:50,632 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 185 [2020-10-23 20:19:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:50,638 INFO L225 Difference]: With dead ends: 1239 [2020-10-23 20:19:50,638 INFO L226 Difference]: Without dead ends: 722 [2020-10-23 20:19:50,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 20:19:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-10-23 20:19:50,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 634. [2020-10-23 20:19:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-23 20:19:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 702 transitions. [2020-10-23 20:19:50,890 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 702 transitions. Word has length 185 [2020-10-23 20:19:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:50,890 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 702 transitions. [2020-10-23 20:19:50,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:19:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 702 transitions. [2020-10-23 20:19:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-23 20:19:50,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:50,895 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] [2020-10-23 20:19:50,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:19:50,895 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 20:19:50,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash -217784294, now seen corresponding path program 1 times [2020-10-23 20:19:50,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:50,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723246793] [2020-10-23 20:19:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:50,900 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,291 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:51,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:19:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:19:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:19:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:19:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:19:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-23 20:19:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 20:19:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:51,520 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 20:19:51,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723246793] [2020-10-23 20:19:51,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:51,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:19:51,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106722612] [2020-10-23 20:19:51,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:19:51,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:51,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:19:51,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:19:51,526 INFO L87 Difference]: Start difference. First operand 634 states and 702 transitions. Second operand 10 states. [2020-10-23 20:19:53,328 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:53,821 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:19:54,282 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:19:54,721 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:55,154 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:19:55,525 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:56,413 INFO L93 Difference]: Finished difference Result 1280 states and 1480 transitions. [2020-10-23 20:19:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:19:56,413 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 209 [2020-10-23 20:19:56,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:56,419 INFO L225 Difference]: With dead ends: 1280 [2020-10-23 20:19:56,419 INFO L226 Difference]: Without dead ends: 766 [2020-10-23 20:19:56,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:19:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-10-23 20:19:56,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 650. [2020-10-23 20:19:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-10-23 20:19:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 718 transitions. [2020-10-23 20:19:56,647 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 718 transitions. Word has length 209 [2020-10-23 20:19:56,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:56,647 INFO L481 AbstractCegarLoop]: Abstraction has 650 states and 718 transitions. [2020-10-23 20:19:56,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:19:56,647 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 718 transitions. [2020-10-23 20:19:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-23 20:19:56,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:56,651 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] [2020-10-23 20:19:56,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:19:56,652 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 20:19:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:56,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1191654470, now seen corresponding path program 1 times [2020-10-23 20:19:56,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:56,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1900021974] [2020-10-23 20:19:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:56,656 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,041 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:57,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:19:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:19:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:19:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:19:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:19:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-23 20:19:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 20:19:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:57,298 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 20:19:57,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1900021974] [2020-10-23 20:19:57,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:57,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 20:19:57,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929961350] [2020-10-23 20:19:57,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 20:19:57,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:57,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 20:19:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:19:57,307 INFO L87 Difference]: Start difference. First operand 650 states and 718 transitions. Second operand 13 states. [2020-10-23 20:19:58,110 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:19:58,538 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:19:58,946 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:59,351 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:19:59,733 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:01,019 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:01,428 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:01,853 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:02,312 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:02,723 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:03,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:03,825 INFO L93 Difference]: Finished difference Result 1318 states and 1533 transitions. [2020-10-23 20:20:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:20:03,826 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2020-10-23 20:20:03,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:03,834 INFO L225 Difference]: With dead ends: 1318 [2020-10-23 20:20:03,835 INFO L226 Difference]: Without dead ends: 788 [2020-10-23 20:20:03,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:20:03,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-10-23 20:20:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 662. [2020-10-23 20:20:04,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2020-10-23 20:20:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 730 transitions. [2020-10-23 20:20:04,180 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 730 transitions. Word has length 209 [2020-10-23 20:20:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:04,181 INFO L481 AbstractCegarLoop]: Abstraction has 662 states and 730 transitions. [2020-10-23 20:20:04,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 20:20:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 730 transitions. [2020-10-23 20:20:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-23 20:20:04,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:04,185 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] [2020-10-23 20:20:04,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:20:04,185 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 20:20:04,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:04,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1463018845, now seen corresponding path program 1 times [2020-10-23 20:20:04,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:04,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665506092] [2020-10-23 20:20:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:04,189 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,578 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:04,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:20:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:20:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-10-23 20:20:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-23 20:20:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,766 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 20:20:04,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665506092] [2020-10-23 20:20:04,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:04,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:20:04,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303817574] [2020-10-23 20:20:04,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:20:04,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:04,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:20:04,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:20:04,768 INFO L87 Difference]: Start difference. First operand 662 states and 730 transitions. Second operand 7 states. [2020-10-23 20:20:05,493 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:06,309 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:09,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:09,039 INFO L93 Difference]: Finished difference Result 1939 states and 2283 transitions. [2020-10-23 20:20:09,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:20:09,040 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-23 20:20:09,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:09,049 INFO L225 Difference]: With dead ends: 1939 [2020-10-23 20:20:09,049 INFO L226 Difference]: Without dead ends: 1397 [2020-10-23 20:20:09,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:20:09,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2020-10-23 20:20:09,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1278. [2020-10-23 20:20:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1278 states. [2020-10-23 20:20:09,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1437 transitions. [2020-10-23 20:20:09,576 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1437 transitions. Word has length 209 [2020-10-23 20:20:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:09,577 INFO L481 AbstractCegarLoop]: Abstraction has 1278 states and 1437 transitions. [2020-10-23 20:20:09,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:20:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1437 transitions. [2020-10-23 20:20:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-23 20:20:09,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:09,580 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] [2020-10-23 20:20:09,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:20:09,580 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 20:20:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:09,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1540441117, now seen corresponding path program 1 times [2020-10-23 20:20:09,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:09,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14265332] [2020-10-23 20:20:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:09,585 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,040 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:10,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:20:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:20:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:20:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-23 20:20:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 20:20:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:10,300 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 20:20:10,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14265332] [2020-10-23 20:20:10,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:10,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:20:10,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231120064] [2020-10-23 20:20:10,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:20:10,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:10,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:20:10,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:20:10,302 INFO L87 Difference]: Start difference. First operand 1278 states and 1437 transitions. Second operand 14 states. [2020-10-23 20:20:11,363 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-23 20:20:12,398 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:13,947 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:20:14,736 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-10-23 20:20:15,266 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:15,675 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:16,423 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-23 20:20:16,888 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:17,330 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:17,739 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:19,804 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:20,175 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:20,610 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:21,510 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:20:22,975 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-23 20:20:23,736 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:20:24,600 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-23 20:20:25,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:25,305 INFO L93 Difference]: Finished difference Result 3498 states and 4090 transitions. [2020-10-23 20:20:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-23 20:20:25,306 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 214 [2020-10-23 20:20:25,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:25,321 INFO L225 Difference]: With dead ends: 3498 [2020-10-23 20:20:25,322 INFO L226 Difference]: Without dead ends: 2607 [2020-10-23 20:20:25,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=494, Invalid=1858, Unknown=0, NotChecked=0, Total=2352 [2020-10-23 20:20:25,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2020-10-23 20:20:26,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2199. [2020-10-23 20:20:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2199 states. [2020-10-23 20:20:26,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 2449 transitions. [2020-10-23 20:20:26,267 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 2449 transitions. Word has length 214 [2020-10-23 20:20:26,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:26,267 INFO L481 AbstractCegarLoop]: Abstraction has 2199 states and 2449 transitions. [2020-10-23 20:20:26,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:20:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 2449 transitions. [2020-10-23 20:20:26,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-23 20:20:26,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:26,271 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:26,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:20:26,272 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 20:20:26,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:26,273 INFO L82 PathProgramCache]: Analyzing trace with hash -160330364, now seen corresponding path program 1 times [2020-10-23 20:20:26,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:26,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1590074904] [2020-10-23 20:20:26,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:26,607 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:20:26,746 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-23 20:20:27,033 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-10-23 20:20:27,382 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2020-10-23 20:20:27,739 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-23 20:20:28,091 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2020-10-23 20:20:28,511 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-23 20:20:28,617 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-23 20:20:28,927 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-10-23 20:20:29,033 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-23 20:20:29,360 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2020-10-23 20:20:29,475 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-23 20:20:29,740 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-23 20:20:30,103 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2020-10-23 20:20:30,466 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2020-10-23 20:20:30,845 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2020-10-23 20:20:31,242 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2020-10-23 20:20:31,644 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2020-10-23 20:20:32,406 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:32,998 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:33,580 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:34,165 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:34,781 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:35,427 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:36,035 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:36,620 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:20:36,623 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:37,488 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 217 [2020-10-23 20:20:38,317 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 217 [2020-10-23 20:20:39,171 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 217 [2020-10-23 20:20:39,943 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 217 [2020-10-23 20:20:39,955 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:40,690 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:41,435 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:42,228 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:42,993 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:42,999 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:43,766 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 217 [2020-10-23 20:20:44,540 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 217 [2020-10-23 20:20:45,370 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 217 [2020-10-23 20:20:46,147 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 217 [2020-10-23 20:20:46,158 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:46,891 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:47,625 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:48,387 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:49,119 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2020-10-23 20:20:49,124 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:49,694 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:50,271 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:50,867 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:51,435 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:52,011 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:52,625 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:53,208 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:53,801 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2020-10-23 20:20:53,805 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:54,613 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:20:55,392 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:20:56,158 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:20:56,925 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:20:56,931 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:20:57,526 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:20:58,092 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:20:58,674 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:20:59,267 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:20:59,841 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:21:00,454 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:21:01,028 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:21:01,624 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 168 [2020-10-23 20:21:01,626 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:02,377 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:03,142 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:03,935 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:04,702 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:04,708 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:05,498 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:21:06,308 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:21:07,156 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:21:07,967 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2020-10-23 20:21:07,976 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:08,770 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:09,565 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:10,380 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:11,214 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 221 [2020-10-23 20:21:11,219 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:11,835 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:12,444 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:13,064 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:13,646 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:14,252 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:14,836 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:15,412 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:15,983 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:15,986 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:16,573 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:17,147 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:17,730 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:18,318 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:18,902 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:19,486 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:20,085 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:20,681 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:20,684 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:21,272 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:21,861 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:22,440 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:23,033 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:23,608 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:24,186 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:24,800 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-23 20:21:25,434 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 167 [2020-10-23 20:21:25,437 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:21:25,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:21:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:21:26,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:21:26,360 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:21:26,360 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:21:26,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 20:21:26,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:21:26 BoogieIcfgContainer [2020-10-23 20:21:26,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:21:26,421 INFO L168 Benchmark]: Toolchain (without parser) took 122559.17 ms. Allocated memory was 151.0 MB in the beginning and 924.8 MB in the end (delta: 773.8 MB). Free memory was 108.3 MB in the beginning and 345.2 MB in the end (delta: -236.9 MB). Peak memory consumption was 537.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:26,421 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:21:26,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.10 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 124.9 MB in the end (delta: -17.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:26,422 INFO L168 Benchmark]: Boogie Preprocessor took 146.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 120.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:26,422 INFO L168 Benchmark]: RCFGBuilder took 1448.00 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 120.9 MB in the beginning and 158.2 MB in the end (delta: -37.3 MB). Peak memory consumption was 59.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:26,423 INFO L168 Benchmark]: TraceAbstraction took 120282.27 ms. Allocated memory was 186.6 MB in the beginning and 924.8 MB in the end (delta: 738.2 MB). Free memory was 158.2 MB in the beginning and 345.2 MB in the end (delta: -187.0 MB). Peak memory consumption was 551.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:21:26,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 663.10 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 124.9 MB in the end (delta: -17.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.49 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 120.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1448.00 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 120.9 MB in the beginning and 158.2 MB in the end (delta: -37.3 MB). Peak memory consumption was 59.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 120282.27 ms. Allocated memory was 186.6 MB in the beginning and 924.8 MB in the end (delta: 738.2 MB). Free memory was 158.2 MB in the beginning and 345.2 MB in the end (delta: -187.0 MB). Peak memory consumption was 551.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int cleanupTimeShifts = 4; [L326] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int waterLevel = 1; [L632] int methaneLevelCritical = 0; [L728] int pumpRunning = 0; [L729] int systemActive = 1; [L900] int switchedOnBeforeTS ; [L134] int retValue_acc ; [L135] int tmp ; [L139] FCALL select_helpers() [L140] FCALL select_features() [L141] CALL, EXPR valid_product() [L549] int retValue_acc ; [L552] retValue_acc = 1 [L553] return (retValue_acc); [L141] RET, EXPR valid_product() [L141] tmp = valid_product() [L143] COND TRUE \read(tmp) [L145] FCALL setup() [L146] CALL runTest() [L124] CALL __utac_acc__Specification5_spec__1() [L905] switchedOnBeforeTS = 0 [L124] RET __utac_acc__Specification5_spec__1() [L125] CALL test() [L560] int splverifierCounter ; [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L564] int tmp___2 ; [L567] splverifierCounter = 0 [L569] COND TRUE 1 [L571] COND TRUE splverifierCounter < 4 [L577] tmp = __VERIFIER_nondet_int() [L579] COND TRUE \read(tmp) [L581] CALL waterRise() [L649] COND TRUE waterLevel < 2 [L650] waterLevel = waterLevel + 1 [L581] RET waterRise() [L587] tmp___0 = __VERIFIER_nondet_int() [L589] COND FALSE !(\read(tmp___0)) [L597] tmp___2 = __VERIFIER_nondet_int() [L599] COND TRUE \read(tmp___2) [L614] CALL timeShift() [L738] CALL __utac_acc__Specification5_spec__2() [L914] CALL, EXPR isPumpRunning() [L821] int retValue_acc ; [L824] retValue_acc = pumpRunning [L825] return (retValue_acc); [L914] RET, EXPR isPumpRunning() [L914] switchedOnBeforeTS = isPumpRunning() [L738] RET __utac_acc__Specification5_spec__2() [L740] COND FALSE !(\read(pumpRunning)) [L747] COND TRUE \read(systemActive) [L749] CALL processEnvironment() [L769] int tmp ; [L772] COND TRUE ! pumpRunning [L774] CALL, EXPR isHighWaterLevel() [L866] int retValue_acc ; [L867] int tmp ; [L868] int tmp___0 ; [L872] CALL, EXPR isHighWaterSensorDry() [L711] int retValue_acc ; [L714] COND FALSE !(waterLevel < 2) [L718] retValue_acc = 0 [L719] return (retValue_acc); [L872] RET, EXPR isHighWaterSensorDry() [L872] tmp = isHighWaterSensorDry() [L874] COND FALSE !(\read(tmp)) [L877] tmp___0 = 1 [L879] retValue_acc = tmp___0 [L880] return (retValue_acc); [L774] RET, EXPR isHighWaterLevel() [L774] tmp = isHighWaterLevel() [L776] COND TRUE \read(tmp) [L778] CALL activatePump() [L797] pumpRunning = 1 [L778] RET activatePump() [L749] RET processEnvironment() [L755] CALL __utac_acc__Specification5_spec__3() [L920] int tmp ; [L921] int tmp___0 ; [L925] CALL, EXPR getWaterLevel() [L702] int retValue_acc ; [L705] retValue_acc = waterLevel [L706] return (retValue_acc); [L925] RET, EXPR getWaterLevel() [L925] tmp = getWaterLevel() [L927] COND FALSE !(tmp != 2) [L755] RET __utac_acc__Specification5_spec__3() [L614] RET timeShift() [L569] COND TRUE 1 [L571] COND TRUE splverifierCounter < 4 [L577] tmp = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp)) [L587] tmp___0 = __VERIFIER_nondet_int() [L589] COND FALSE !(\read(tmp___0)) [L597] tmp___2 = __VERIFIER_nondet_int() [L599] COND TRUE \read(tmp___2) [L614] CALL timeShift() [L738] CALL __utac_acc__Specification5_spec__2() [L914] CALL, EXPR isPumpRunning() [L821] int retValue_acc ; [L824] retValue_acc = pumpRunning [L825] return (retValue_acc); [L914] RET, EXPR isPumpRunning() [L914] switchedOnBeforeTS = isPumpRunning() [L738] RET __utac_acc__Specification5_spec__2() [L740] COND TRUE \read(pumpRunning) [L742] CALL lowerWaterLevel() [L637] COND TRUE waterLevel > 0 [L638] waterLevel = waterLevel - 1 [L742] RET lowerWaterLevel() [L747] COND TRUE \read(systemActive) [L749] CALL processEnvironment() [L769] int tmp ; [L772] COND FALSE !(! pumpRunning) [L787] FCALL processEnvironment__wrappee__base() [L749] RET processEnvironment() [L755] CALL __utac_acc__Specification5_spec__3() [L920] int tmp ; [L921] int tmp___0 ; [L925] CALL, EXPR getWaterLevel() [L702] int retValue_acc ; [L705] retValue_acc = waterLevel [L706] return (retValue_acc); [L925] RET, EXPR getWaterLevel() [L925] tmp = getWaterLevel() [L927] COND TRUE tmp != 2 [L929] CALL, EXPR isPumpRunning() [L821] int retValue_acc ; [L824] retValue_acc = pumpRunning [L825] return (retValue_acc); [L929] RET, EXPR isPumpRunning() [L929] tmp___0 = isPumpRunning() [L931] COND TRUE \read(tmp___0) [L932] COND TRUE ! switchedOnBeforeTS [L934] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec5_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 638 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 120.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 50.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2304 SDtfs, 5567 SDslu, 4735 SDs, 0 SdLazy, 8666 SolverSat, 1649 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 262 SyntacticMatches, 3 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 27.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2199occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1149 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...