/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:49:10,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:49:10,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:49:10,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:49:10,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:49:10,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:49:10,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:49:10,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:49:10,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:49:10,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:49:10,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:49:10,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:49:10,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:49:10,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:49:10,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:49:10,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:49:10,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:49:10,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:49:10,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:49:10,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:49:10,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:49:10,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:49:10,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:49:10,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:49:10,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:49:10,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:49:10,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:49:10,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:49:10,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:49:10,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:49:10,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:49:10,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:49:10,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:49:10,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:49:10,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:49:10,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:49:10,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:49:10,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:49:10,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:49:10,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:49:10,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:49:10,494 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:49:10,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:49:10,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:49:10,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:49:10,507 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:49:10,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:49:10,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:49:10,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:49:10,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:49:10,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:49:10,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:49:10,509 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:49:10,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:49:10,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:49:10,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:49:10,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:49:10,510 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:49:10,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:49:10,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:49:10,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:49:10,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:49:10,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:49:10,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:49:10,512 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:49:10,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:49:11,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:49:11,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:49:11,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:49:11,014 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:49:11,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-10-23 19:49:11,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d273a3e3e/e8f63ea7971447cea8670981a28cb90b/FLAG6fe862f02 [2020-10-23 19:49:11,750 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:49:11,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2020-10-23 19:49:11,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d273a3e3e/e8f63ea7971447cea8670981a28cb90b/FLAG6fe862f02 [2020-10-23 19:49:12,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d273a3e3e/e8f63ea7971447cea8670981a28cb90b [2020-10-23 19:49:12,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:49:12,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:49:12,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:49:12,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:49:12,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:49:12,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399c8c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12, skipping insertion in model container [2020-10-23 19:49:12,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:49:12,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:49:12,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:49:12,580 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:49:12,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:49:12,718 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:49:12,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12 WrapperNode [2020-10-23 19:49:12,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:49:12,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:49:12,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:49:12,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:49:12,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... [2020-10-23 19:49:12,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:49:12,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:49:12,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:49:12,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:49:12,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:49:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:49:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:49:12,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:49:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:49:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:49:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:49:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:49:12,941 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:49:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:49:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:49:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:49:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:49:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:49:12,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:49:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:49:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:49:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:49:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:49:12,943 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:49:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:49:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:49:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:49:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:49:12,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:49:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:49:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:49:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:49:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:49:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:49:12,945 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:49:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:49:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:49:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:49:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:49:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:49:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:49:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:49:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:49:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:49:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:49:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:49:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:49:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:49:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:49:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:49:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:49:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:49:12,948 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:49:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:49:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:49:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:49:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 19:49:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:49:12,949 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:49:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:49:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:49:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:49:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:49:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:49:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:49:12,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:49:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:49:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:49:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:49:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:49:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:49:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:49:12,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:49:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:49:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:49:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:49:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:49:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:49:12,952 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:49:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:49:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:49:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:49:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:49:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:49:12,953 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:49:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:49:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:49:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:49:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:49:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:49:12,954 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:49:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 19:49:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:49:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:49:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:49:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:49:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:49:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:49:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:49:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:49:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:49:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:49:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:49:14,664 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:49:14,667 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:49:14,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:49:14 BoogieIcfgContainer [2020-10-23 19:49:14,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:49:14,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:49:14,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:49:14,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:49:14,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:49:12" (1/3) ... [2020-10-23 19:49:14,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601f9f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:49:14, skipping insertion in model container [2020-10-23 19:49:14,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:49:12" (2/3) ... [2020-10-23 19:49:14,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601f9f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:49:14, skipping insertion in model container [2020-10-23 19:49:14,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:49:14" (3/3) ... [2020-10-23 19:49:14,681 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2020-10-23 19:49:14,693 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:49:14,699 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:49:14,712 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:49:14,736 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:49:14,736 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:49:14,736 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:49:14,736 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:49:14,736 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:49:14,737 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:49:14,737 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:49:14,737 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:49:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-10-23 19:49:14,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:49:14,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:14,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:14,786 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:49:14,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:14,796 INFO L82 PathProgramCache]: Analyzing trace with hash 472122434, now seen corresponding path program 1 times [2020-10-23 19:49:14,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:14,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067128021] [2020-10-23 19:49:14,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:14,886 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,868 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:15,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:49:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:49:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:49:16,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067128021] [2020-10-23 19:49:16,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:16,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:49:16,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889589559] [2020-10-23 19:49:16,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:49:16,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:16,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:49:16,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:49:16,072 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 3 states. [2020-10-23 19:49:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:18,618 INFO L93 Difference]: Finished difference Result 535 states and 631 transitions. [2020-10-23 19:49:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:49:18,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:49:18,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:18,637 INFO L225 Difference]: With dead ends: 535 [2020-10-23 19:49:18,637 INFO L226 Difference]: Without dead ends: 327 [2020-10-23 19:49:18,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:49:18,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-10-23 19:49:18,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 284. [2020-10-23 19:49:18,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-23 19:49:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 308 transitions. [2020-10-23 19:49:18,821 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 308 transitions. Word has length 148 [2020-10-23 19:49:18,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:18,822 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 308 transitions. [2020-10-23 19:49:18,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:49:18,822 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 308 transitions. [2020-10-23 19:49:18,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:49:18,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:18,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:18,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:49:18,829 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:49:18,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:18,830 INFO L82 PathProgramCache]: Analyzing trace with hash 324456621, now seen corresponding path program 1 times [2020-10-23 19:49:18,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:18,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940493955] [2020-10-23 19:49:18,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:18,835 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,618 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:19,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:49:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:49:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:49:19,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940493955] [2020-10-23 19:49:19,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:19,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:49:19,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130771010] [2020-10-23 19:49:19,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:49:19,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:19,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:49:19,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:49:19,754 INFO L87 Difference]: Start difference. First operand 284 states and 308 transitions. Second operand 4 states. [2020-10-23 19:49:20,961 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:22,902 INFO L93 Difference]: Finished difference Result 449 states and 502 transitions. [2020-10-23 19:49:22,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:49:22,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:49:22,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:22,910 INFO L225 Difference]: With dead ends: 449 [2020-10-23 19:49:22,910 INFO L226 Difference]: Without dead ends: 310 [2020-10-23 19:49:22,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:49:22,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-10-23 19:49:23,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 274. [2020-10-23 19:49:23,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-23 19:49:23,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 295 transitions. [2020-10-23 19:49:23,021 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 295 transitions. Word has length 149 [2020-10-23 19:49:23,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:23,022 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 295 transitions. [2020-10-23 19:49:23,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:49:23,022 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 295 transitions. [2020-10-23 19:49:23,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 19:49:23,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:23,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:23,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:49:23,025 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:49:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:23,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1858041169, now seen corresponding path program 1 times [2020-10-23 19:49:23,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:23,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027926784] [2020-10-23 19:49:23,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:23,031 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,791 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:23,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:49:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:49:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:49:23,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027926784] [2020-10-23 19:49:23,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:23,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:49:23,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330152581] [2020-10-23 19:49:23,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:49:23,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:23,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:49:23,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:49:23,983 INFO L87 Difference]: Start difference. First operand 274 states and 295 transitions. Second operand 9 states. [2020-10-23 19:49:25,033 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:25,872 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:49:26,520 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:49:27,213 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:27,927 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:28,577 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:31,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:31,317 INFO L93 Difference]: Finished difference Result 469 states and 527 transitions. [2020-10-23 19:49:31,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:49:31,318 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 19:49:31,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:31,323 INFO L225 Difference]: With dead ends: 469 [2020-10-23 19:49:31,323 INFO L226 Difference]: Without dead ends: 310 [2020-10-23 19:49:31,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:49:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-10-23 19:49:31,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 274. [2020-10-23 19:49:31,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-23 19:49:31,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 294 transitions. [2020-10-23 19:49:31,437 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 294 transitions. Word has length 158 [2020-10-23 19:49:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:31,437 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 294 transitions. [2020-10-23 19:49:31,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:49:31,438 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 294 transitions. [2020-10-23 19:49:31,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-23 19:49:31,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:31,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:31,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:49:31,441 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:49:31,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:31,441 INFO L82 PathProgramCache]: Analyzing trace with hash 449814000, now seen corresponding path program 1 times [2020-10-23 19:49:31,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:31,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070184936] [2020-10-23 19:49:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:31,445 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,116 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:32,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:49:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 19:49:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 19:49:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:49:32,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070184936] [2020-10-23 19:49:32,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:32,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:49:32,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963343338] [2020-10-23 19:49:32,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:49:32,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:32,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:49:32,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:49:32,267 INFO L87 Difference]: Start difference. First operand 274 states and 294 transitions. Second operand 6 states. [2020-10-23 19:49:33,271 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:35,788 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:37,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:37,383 INFO L93 Difference]: Finished difference Result 602 states and 684 transitions. [2020-10-23 19:49:37,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:49:37,384 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-10-23 19:49:37,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:37,388 INFO L225 Difference]: With dead ends: 602 [2020-10-23 19:49:37,388 INFO L226 Difference]: Without dead ends: 443 [2020-10-23 19:49:37,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:49:37,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-23 19:49:37,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 382. [2020-10-23 19:49:37,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-10-23 19:49:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 411 transitions. [2020-10-23 19:49:37,566 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 411 transitions. Word has length 171 [2020-10-23 19:49:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:37,567 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 411 transitions. [2020-10-23 19:49:37,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:49:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 411 transitions. [2020-10-23 19:49:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-23 19:49:37,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:37,570 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:37,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:49:37,571 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:49:37,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:37,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1353872733, now seen corresponding path program 1 times [2020-10-23 19:49:37,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:37,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775375381] [2020-10-23 19:49:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:37,575 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,285 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:38,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:49:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:49:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:49:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 19:49:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 19:49:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:49:38,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775375381] [2020-10-23 19:49:38,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:38,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:49:38,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400202700] [2020-10-23 19:49:38,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:49:38,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:38,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:49:38,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:49:38,473 INFO L87 Difference]: Start difference. First operand 382 states and 411 transitions. Second operand 9 states. [2020-10-23 19:49:39,422 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:41,671 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:42,405 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:43,174 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:43,854 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:45,142 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:45,808 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:46,452 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:47,240 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:49:49,522 INFO L93 Difference]: Finished difference Result 969 states and 1111 transitions. [2020-10-23 19:49:49,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:49:49,523 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-10-23 19:49:49,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:49:49,530 INFO L225 Difference]: With dead ends: 969 [2020-10-23 19:49:49,531 INFO L226 Difference]: Without dead ends: 702 [2020-10-23 19:49:49,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 19:49:49,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2020-10-23 19:49:49,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 611. [2020-10-23 19:49:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-23 19:49:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 664 transitions. [2020-10-23 19:49:49,865 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 664 transitions. Word has length 195 [2020-10-23 19:49:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:49:49,865 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 664 transitions. [2020-10-23 19:49:49,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:49:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 664 transitions. [2020-10-23 19:49:49,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-23 19:49:49,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:49:49,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:49:49,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:49:49,869 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:49:49,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:49:49,870 INFO L82 PathProgramCache]: Analyzing trace with hash 743855684, now seen corresponding path program 1 times [2020-10-23 19:49:49,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:49:49,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162501642] [2020-10-23 19:49:49,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:49:49,873 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:49:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,548 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:49:50,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:49:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:49:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:49:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:49:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:49:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:49:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:49:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:49:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:49:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:49:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 19:49:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:49:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:49:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:49:50,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162501642] [2020-10-23 19:49:50,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:49:50,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:49:50,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124679884] [2020-10-23 19:49:50,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:49:50,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:49:50,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:49:50,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:49:50,783 INFO L87 Difference]: Start difference. First operand 611 states and 664 transitions. Second operand 10 states. [2020-10-23 19:49:51,836 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:54,600 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:49:55,240 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:56,048 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:49:58,415 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:49:59,020 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:49:59,743 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:50:00,417 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:50:01,061 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:50:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:50:01,602 INFO L93 Difference]: Finished difference Result 769 states and 887 transitions. [2020-10-23 19:50:01,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 19:50:01,603 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-10-23 19:50:01,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:50:01,610 INFO L225 Difference]: With dead ends: 769 [2020-10-23 19:50:01,610 INFO L226 Difference]: Without dead ends: 765 [2020-10-23 19:50:01,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 19:50:01,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-23 19:50:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 611. [2020-10-23 19:50:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-23 19:50:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 663 transitions. [2020-10-23 19:50:01,856 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 663 transitions. Word has length 200 [2020-10-23 19:50:01,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:50:01,857 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 663 transitions. [2020-10-23 19:50:01,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:50:01,857 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 663 transitions. [2020-10-23 19:50:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-23 19:50:01,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:50:01,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:50:01,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:50:01,862 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:50:01,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:50:01,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1168174461, now seen corresponding path program 1 times [2020-10-23 19:50:01,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:50:01,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135071851] [2020-10-23 19:50:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:50:01,866 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:50:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,504 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:50:02,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:50:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:50:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:50:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:50:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:50:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:50:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:50:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:50:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:50:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:50:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 19:50:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 19:50:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:02,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:50:02,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135071851] [2020-10-23 19:50:02,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:50:02,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:50:02,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252530945] [2020-10-23 19:50:02,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:50:02,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:50:02,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:50:02,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:50:02,776 INFO L87 Difference]: Start difference. First operand 611 states and 663 transitions. Second operand 10 states. [2020-10-23 19:50:04,861 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:50:05,547 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:50:06,255 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:50:06,927 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:50:07,624 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:08,253 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:50:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:50:10,796 INFO L93 Difference]: Finished difference Result 1275 states and 1473 transitions. [2020-10-23 19:50:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:50:10,797 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 223 [2020-10-23 19:50:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:50:10,802 INFO L225 Difference]: With dead ends: 1275 [2020-10-23 19:50:10,802 INFO L226 Difference]: Without dead ends: 779 [2020-10-23 19:50:10,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:50:10,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-10-23 19:50:11,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 627. [2020-10-23 19:50:11,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 627 states. [2020-10-23 19:50:11,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 679 transitions. [2020-10-23 19:50:11,017 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 679 transitions. Word has length 223 [2020-10-23 19:50:11,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:50:11,018 INFO L481 AbstractCegarLoop]: Abstraction has 627 states and 679 transitions. [2020-10-23 19:50:11,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:50:11,018 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 679 transitions. [2020-10-23 19:50:11,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-23 19:50:11,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:50:11,023 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:50:11,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:50:11,023 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:50:11,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:50:11,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1835920861, now seen corresponding path program 1 times [2020-10-23 19:50:11,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:50:11,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363850209] [2020-10-23 19:50:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:50:11,027 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:50:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,696 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:50:11,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:50:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:50:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:50:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:50:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:50:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:50:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:50:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:50:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:50:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:50:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 19:50:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:11,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 19:50:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:12,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:50:12,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363850209] [2020-10-23 19:50:12,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:50:12,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 19:50:12,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482263772] [2020-10-23 19:50:12,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 19:50:12,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:50:12,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 19:50:12,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 19:50:12,014 INFO L87 Difference]: Start difference. First operand 627 states and 679 transitions. Second operand 13 states. [2020-10-23 19:50:13,170 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:50:13,850 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:50:14,527 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:50:15,182 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:15,821 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:50:17,343 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:50:18,001 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:18,693 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:50:19,389 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:20,030 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:50:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:50:23,083 INFO L93 Difference]: Finished difference Result 1309 states and 1509 transitions. [2020-10-23 19:50:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 19:50:23,084 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 223 [2020-10-23 19:50:23,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:50:23,089 INFO L225 Difference]: With dead ends: 1309 [2020-10-23 19:50:23,090 INFO L226 Difference]: Without dead ends: 797 [2020-10-23 19:50:23,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 19:50:23,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-23 19:50:23,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 639. [2020-10-23 19:50:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2020-10-23 19:50:23,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 691 transitions. [2020-10-23 19:50:23,392 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 691 transitions. Word has length 223 [2020-10-23 19:50:23,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:50:23,393 INFO L481 AbstractCegarLoop]: Abstraction has 639 states and 691 transitions. [2020-10-23 19:50:23,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 19:50:23,393 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 691 transitions. [2020-10-23 19:50:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-23 19:50:23,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:50:23,397 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:50:23,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:50:23,398 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:50:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:50:23,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1731941158, now seen corresponding path program 1 times [2020-10-23 19:50:23,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:50:23,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406849401] [2020-10-23 19:50:23,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:50:23,402 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:50:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,090 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:50:24,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:50:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:50:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:50:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:50:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:50:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:50:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:50:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:50:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:50:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:50:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-23 19:50:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-23 19:50:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:50:24,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406849401] [2020-10-23 19:50:24,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:50:24,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 19:50:24,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207485971] [2020-10-23 19:50:24,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 19:50:24,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:50:24,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 19:50:24,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:50:24,342 INFO L87 Difference]: Start difference. First operand 639 states and 691 transitions. Second operand 7 states. [2020-10-23 19:50:25,347 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:50:26,501 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:50:30,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:50:30,998 INFO L93 Difference]: Finished difference Result 1755 states and 2074 transitions. [2020-10-23 19:50:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 19:50:30,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-10-23 19:50:31,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:50:31,006 INFO L225 Difference]: With dead ends: 1755 [2020-10-23 19:50:31,007 INFO L226 Difference]: Without dead ends: 1231 [2020-10-23 19:50:31,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:50:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2020-10-23 19:50:31,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1057. [2020-10-23 19:50:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-10-23 19:50:31,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1183 transitions. [2020-10-23 19:50:31,441 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1183 transitions. Word has length 223 [2020-10-23 19:50:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:50:31,441 INFO L481 AbstractCegarLoop]: Abstraction has 1057 states and 1183 transitions. [2020-10-23 19:50:31,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 19:50:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1183 transitions. [2020-10-23 19:50:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-23 19:50:31,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:50:31,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:50:31,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:50:31,445 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:50:31,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:50:31,446 INFO L82 PathProgramCache]: Analyzing trace with hash 503064899, now seen corresponding path program 1 times [2020-10-23 19:50:31,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:50:31,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079037178] [2020-10-23 19:50:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:50:31,449 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:50:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,127 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:50:32,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:50:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:50:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:50:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:50:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:50:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:50:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:50:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:50:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:50:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:50:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:50:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 19:50:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 19:50:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-23 19:50:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-23 19:50:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:50:32,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:50:32,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079037178] [2020-10-23 19:50:32,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:50:32,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-23 19:50:32,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873443009] [2020-10-23 19:50:32,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-23 19:50:32,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:50:32,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-23 19:50:32,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-10-23 19:50:32,905 INFO L87 Difference]: Start difference. First operand 1057 states and 1183 transitions. Second operand 20 states. [2020-10-23 19:50:34,012 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:50:34,942 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:50:35,647 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:50:36,344 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:37,035 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:50:37,705 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:39,360 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:50:41,812 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:42,597 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:50:43,406 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:44,194 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:44,904 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:50:45,631 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:50:46,321 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:47,055 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:50:47,783 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:48,644 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:50:49,416 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:50:50,176 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:50:51,643 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 19:50:53,272 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2020-10-23 19:50:54,602 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 19:50:59,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:50:59,606 INFO L93 Difference]: Finished difference Result 2128 states and 2456 transitions. [2020-10-23 19:50:59,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-23 19:50:59,610 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 228 [2020-10-23 19:50:59,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:50:59,618 INFO L225 Difference]: With dead ends: 2128 [2020-10-23 19:50:59,618 INFO L226 Difference]: Without dead ends: 1186 [2020-10-23 19:50:59,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=530, Invalid=2332, Unknown=0, NotChecked=0, Total=2862 [2020-10-23 19:50:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2020-10-23 19:51:00,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1018. [2020-10-23 19:51:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1018 states. [2020-10-23 19:51:00,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1126 transitions. [2020-10-23 19:51:00,145 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1126 transitions. Word has length 228 [2020-10-23 19:51:00,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:51:00,146 INFO L481 AbstractCegarLoop]: Abstraction has 1018 states and 1126 transitions. [2020-10-23 19:51:00,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-23 19:51:00,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1126 transitions. [2020-10-23 19:51:00,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-10-23 19:51:00,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:51:00,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:51:00,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:51:00,151 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:51:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:51:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash 478258238, now seen corresponding path program 1 times [2020-10-23 19:51:00,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:51:00,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997716221] [2020-10-23 19:51:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:51:00,173 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 19:51:00,177 INFO L168 Benchmark]: Toolchain (without parser) took 108118.74 ms. Allocated memory was 153.1 MB in the beginning and 556.8 MB in the end (delta: 403.7 MB). Free memory was 129.3 MB in the beginning and 482.8 MB in the end (delta: -353.4 MB). Peak memory consumption was 50.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:51:00,178 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 109.2 MB in the beginning and 109.1 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:51:00,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.65 ms. Allocated memory is still 153.1 MB. Free memory was 128.7 MB in the beginning and 135.5 MB in the end (delta: -6.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:51:00,179 INFO L168 Benchmark]: Boogie Preprocessor took 136.91 ms. Allocated memory is still 153.1 MB. Free memory was 135.5 MB in the beginning and 131.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:51:00,180 INFO L168 Benchmark]: RCFGBuilder took 1811.94 ms. Allocated memory is still 153.1 MB. Free memory was 131.4 MB in the beginning and 110.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 48.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:51:00,181 INFO L168 Benchmark]: TraceAbstraction took 105503.08 ms. Allocated memory was 153.1 MB in the beginning and 556.8 MB in the end (delta: 403.7 MB). Free memory was 109.6 MB in the beginning and 482.8 MB in the end (delta: -373.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:51:00,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory was 109.2 MB in the beginning and 109.1 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 650.65 ms. Allocated memory is still 153.1 MB. Free memory was 128.7 MB in the beginning and 135.5 MB in the end (delta: -6.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 136.91 ms. Allocated memory is still 153.1 MB. Free memory was 135.5 MB in the beginning and 131.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1811.94 ms. Allocated memory is still 153.1 MB. Free memory was 131.4 MB in the beginning and 110.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 48.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 105503.08 ms. Allocated memory was 153.1 MB in the beginning and 556.8 MB in the end (delta: 403.7 MB). Free memory was 109.6 MB in the beginning and 482.8 MB in the end (delta: -373.2 MB). Peak memory consumption was 30.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.looppreprocessor.LoopPreprocessorFastUPR.preProcessLoop(LoopPreprocessorFastUPR.java:119) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...