/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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 23:45:43,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 23:45:43,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 23:45:43,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 23:45:43,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 23:45:43,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 23:45:43,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 23:45:43,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 23:45:43,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 23:45:43,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 23:45:43,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 23:45:43,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 23:45:43,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 23:45:43,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 23:45:43,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 23:45:43,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 23:45:43,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 23:45:43,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 23:45:43,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 23:45:43,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 23:45:43,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 23:45:43,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 23:45:43,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 23:45:43,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 23:45:43,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-06 23:45:43,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-06 23:45:43,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-06 23:45:43,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-06 23:45:43,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-06 23:45:43,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-06 23:45:43,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 23:45:43,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 23:45:43,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 23:45:43,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 23:45:43,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 23:45:43,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 23:45:43,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 23:45:43,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 23:45:43,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 23:45:43,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 23:45:43,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 23:45:43,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-06 23:45:43,122 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 23:45:43,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 23:45:43,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 23:45:43,125 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 23:45:43,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 23:45:43,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 23:45:43,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 23:45:43,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 23:45:43,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 23:45:43,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 23:45:43,127 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 23:45:43,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 23:45:43,128 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 23:45:43,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 23:45:43,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 23:45:43,128 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-06 23:45:43,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 23:45:43,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 23:45:43,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 23:45:43,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 23:45:43,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-06 23:45:43,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 23:45:43,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 23:45:43,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 23:45:43,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 23:45:43,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 23:45:43,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 23:45:43,589 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 23:45:43,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-11-06 23:45:43,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55406e7bc/d314dc94fb924cf581e56bef12737ee8/FLAGc74e702c0 [2020-11-06 23:45:44,413 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 23:45:44,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product43.cil.c [2020-11-06 23:45:44,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55406e7bc/d314dc94fb924cf581e56bef12737ee8/FLAGc74e702c0 [2020-11-06 23:45:44,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55406e7bc/d314dc94fb924cf581e56bef12737ee8 [2020-11-06 23:45:44,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 23:45:44,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 23:45:44,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 23:45:44,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 23:45:44,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 23:45:44,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:45:44" (1/1) ... [2020-11-06 23:45:44,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbf43ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:44, skipping insertion in model container [2020-11-06 23:45:44,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:45:44" (1/1) ... [2020-11-06 23:45:44,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 23:45:44,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 23:45:45,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:45:45,050 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 23:45:45,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 23:45:45,229 INFO L208 MainTranslator]: Completed translation [2020-11-06 23:45:45,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45 WrapperNode [2020-11-06 23:45:45,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 23:45:45,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 23:45:45,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 23:45:45,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 23:45:45,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (1/1) ... [2020-11-06 23:45:45,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (1/1) ... [2020-11-06 23:45:45,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (1/1) ... [2020-11-06 23:45:45,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (1/1) ... [2020-11-06 23:45:45,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (1/1) ... [2020-11-06 23:45:45,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (1/1) ... [2020-11-06 23:45:45,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (1/1) ... [2020-11-06 23:45:45,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 23:45:45,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 23:45:45,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 23:45:45,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 23:45:45,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (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 [2020-11-06 23:45:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 23:45:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 23:45:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-06 23:45:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 23:45:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-06 23:45:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-06 23:45:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-06 23:45:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-06 23:45:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-06 23:45:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-06 23:45:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-06 23:45:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-06 23:45:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-06 23:45:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-06 23:45:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:45:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-06 23:45:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-06 23:45:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-06 23:45:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-06 23:45:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-06 23:45:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-06 23:45:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-06 23:45:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-06 23:45:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-06 23:45:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:45:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-06 23:45:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-06 23:45:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-06 23:45:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-06 23:45:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 23:45:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-06 23:45:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-06 23:45:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-06 23:45:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-06 23:45:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-06 23:45:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-06 23:45:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-06 23:45:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-06 23:45:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-06 23:45:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-06 23:45:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 23:45:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 23:45:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 23:45:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 23:45:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 23:45:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-06 23:45:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-06 23:45:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-06 23:45:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-06 23:45:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-06 23:45:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-06 23:45:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-06 23:45:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-06 23:45:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-06 23:45:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-06 23:45:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-06 23:45:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-06 23:45:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-06 23:45:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-06 23:45:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-06 23:45:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-06 23:45:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-06 23:45:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-06 23:45:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-06 23:45:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-06 23:45:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-06 23:45:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-06 23:45:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-06 23:45:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-06 23:45:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-06 23:45:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-06 23:45:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-06 23:45:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-06 23:45:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-06 23:45:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 23:45:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-06 23:45:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-06 23:45:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-06 23:45:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-06 23:45:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-06 23:45:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 23:45:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-06 23:45:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-06 23:45:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 23:45:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-06 23:45:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-06 23:45:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 23:45:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-06 23:45:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-06 23:45:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-06 23:45:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-06 23:45:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 23:45:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 23:45:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 23:45:46,813 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 23:45:46,814 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-06 23:45:46,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:45:46 BoogieIcfgContainer [2020-11-06 23:45:46,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 23:45:46,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 23:45:46,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 23:45:46,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 23:45:46,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:45:44" (1/3) ... [2020-11-06 23:45:46,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b76184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:45:46, skipping insertion in model container [2020-11-06 23:45:46,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:45:45" (2/3) ... [2020-11-06 23:45:46,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b76184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:45:46, skipping insertion in model container [2020-11-06 23:45:46,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:45:46" (3/3) ... [2020-11-06 23:45:46,831 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2020-11-06 23:45:46,851 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-06 23:45:46,856 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-06 23:45:46,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-06 23:45:46,905 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 23:45:46,906 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 23:45:46,906 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-06 23:45:46,906 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 23:45:46,906 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 23:45:46,907 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 23:45:46,907 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 23:45:46,907 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 23:45:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-11-06 23:45:46,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-06 23:45:46,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:46,979 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] [2020-11-06 23:45:46,980 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]=== [2020-11-06 23:45:46,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:46,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1253428491, now seen corresponding path program 1 times [2020-11-06 23:45:46,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:46,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194250913] [2020-11-06 23:45:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:47,105 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:47,976 WARN L194 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:47,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:48,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:48,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:48,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:48,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:48,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:45:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:48,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:45:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:48,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:48,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194250913] [2020-11-06 23:45:48,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:48,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-06 23:45:48,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349939250] [2020-11-06 23:45:48,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 23:45:48,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:48,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 23:45:48,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:45:48,162 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 3 states. [2020-11-06 23:45:49,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:49,902 INFO L93 Difference]: Finished difference Result 485 states and 575 transitions. [2020-11-06 23:45:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 23:45:49,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-06 23:45:49,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:49,934 INFO L225 Difference]: With dead ends: 485 [2020-11-06 23:45:49,935 INFO L226 Difference]: Without dead ends: 302 [2020-11-06 23:45:49,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-06 23:45:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-11-06 23:45:50,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 259. [2020-11-06 23:45:50,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-11-06 23:45:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 280 transitions. [2020-11-06 23:45:50,265 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 280 transitions. Word has length 148 [2020-11-06 23:45:50,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:50,268 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 280 transitions. [2020-11-06 23:45:50,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 23:45:50,269 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 280 transitions. [2020-11-06 23:45:50,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-06 23:45:50,279 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:50,280 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] [2020-11-06 23:45:50,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 23:45:50,281 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]=== [2020-11-06 23:45:50,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:50,282 INFO L82 PathProgramCache]: Analyzing trace with hash 837790809, now seen corresponding path program 1 times [2020-11-06 23:45:50,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:50,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067801930] [2020-11-06 23:45:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:50,294 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,822 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:50,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-06 23:45:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-06 23:45:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:50,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067801930] [2020-11-06 23:45:50,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:50,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 23:45:50,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902178826] [2020-11-06 23:45:50,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-06 23:45:50,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:50,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-06 23:45:50,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-06 23:45:50,961 INFO L87 Difference]: Start difference. First operand 259 states and 280 transitions. Second operand 4 states. [2020-11-06 23:45:52,063 WARN L194 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:45:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:45:53,368 INFO L93 Difference]: Finished difference Result 390 states and 436 transitions. [2020-11-06 23:45:53,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 23:45:53,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-06 23:45:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:45:53,375 INFO L225 Difference]: With dead ends: 390 [2020-11-06 23:45:53,375 INFO L226 Difference]: Without dead ends: 285 [2020-11-06 23:45:53,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-06 23:45:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-11-06 23:45:53,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 249. [2020-11-06 23:45:53,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-11-06 23:45:53,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 267 transitions. [2020-11-06 23:45:53,488 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 267 transitions. Word has length 149 [2020-11-06 23:45:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:45:53,492 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 267 transitions. [2020-11-06 23:45:53,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-06 23:45:53,492 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 267 transitions. [2020-11-06 23:45:53,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-06 23:45:53,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:45:53,495 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] [2020-11-06 23:45:53,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 23:45:53,496 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]=== [2020-11-06 23:45:53,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:45:53,497 INFO L82 PathProgramCache]: Analyzing trace with hash -116269948, now seen corresponding path program 1 times [2020-11-06 23:45:53,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:45:53,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1221972708] [2020-11-06 23:45:53,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:45:53,501 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:45:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,151 WARN L194 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:45:54,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:45:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:45:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:45:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:45:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:45:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-06 23:45:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-06 23:45:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:45:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:45:54,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1221972708] [2020-11-06 23:45:54,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:45:54,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:45:54,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597216229] [2020-11-06 23:45:54,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:45:54,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:45:54,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:45:54,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:45:54,388 INFO L87 Difference]: Start difference. First operand 249 states and 267 transitions. Second operand 9 states. [2020-11-06 23:45:55,116 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:45:55,635 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:45:56,014 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:45:56,433 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:56,876 WARN L194 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:45:57,284 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:45:58,589 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:01,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:01,136 INFO L93 Difference]: Finished difference Result 649 states and 741 transitions. [2020-11-06 23:46:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 23:46:01,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-11-06 23:46:01,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:01,148 INFO L225 Difference]: With dead ends: 649 [2020-11-06 23:46:01,148 INFO L226 Difference]: Without dead ends: 515 [2020-11-06 23:46:01,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-06 23:46:01,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2020-11-06 23:46:01,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 434. [2020-11-06 23:46:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-11-06 23:46:01,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 480 transitions. [2020-11-06 23:46:01,369 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 480 transitions. Word has length 158 [2020-11-06 23:46:01,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:01,370 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 480 transitions. [2020-11-06 23:46:01,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:46:01,370 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 480 transitions. [2020-11-06 23:46:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-11-06 23:46:01,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:01,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:01,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-06 23:46:01,374 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]=== [2020-11-06 23:46:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:01,374 INFO L82 PathProgramCache]: Analyzing trace with hash 992416757, now seen corresponding path program 1 times [2020-11-06 23:46:01,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:01,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529751836] [2020-11-06 23:46:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:01,378 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,791 WARN L194 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:01,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-06 23:46:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-11-06 23:46:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-06 23:46:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:01,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529751836] [2020-11-06 23:46:01,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:01,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 23:46:01,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811154621] [2020-11-06 23:46:01,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-06 23:46:01,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:01,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-06 23:46:01,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-06 23:46:01,998 INFO L87 Difference]: Start difference. First operand 434 states and 480 transitions. Second operand 6 states. [2020-11-06 23:46:02,612 WARN L194 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:04,720 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:05,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:05,477 INFO L93 Difference]: Finished difference Result 1065 states and 1246 transitions. [2020-11-06 23:46:05,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 23:46:05,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-11-06 23:46:05,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:05,485 INFO L225 Difference]: With dead ends: 1065 [2020-11-06 23:46:05,486 INFO L226 Difference]: Without dead ends: 746 [2020-11-06 23:46:05,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-06 23:46:05,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2020-11-06 23:46:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 628. [2020-11-06 23:46:05,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-11-06 23:46:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 694 transitions. [2020-11-06 23:46:05,784 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 694 transitions. Word has length 166 [2020-11-06 23:46:05,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:05,785 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 694 transitions. [2020-11-06 23:46:05,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-06 23:46:05,785 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 694 transitions. [2020-11-06 23:46:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-11-06 23:46:05,787 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:05,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:05,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 23:46:05,788 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]=== [2020-11-06 23:46:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:05,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1170356631, now seen corresponding path program 1 times [2020-11-06 23:46:05,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:05,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073778819] [2020-11-06 23:46:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:05,793 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,246 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:06,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-06 23:46:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-06 23:46:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-06 23:46:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:06,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:06,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073778819] [2020-11-06 23:46:06,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:06,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-06 23:46:06,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494003323] [2020-11-06 23:46:06,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-06 23:46:06,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:06,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-06 23:46:06,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-06 23:46:06,398 INFO L87 Difference]: Start difference. First operand 628 states and 694 transitions. Second operand 9 states. [2020-11-06 23:46:07,067 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:08,497 WARN L194 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:08,917 WARN L194 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:09,373 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:09,812 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:10,223 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:10,633 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:11,017 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:11,600 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:13,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:13,590 INFO L93 Difference]: Finished difference Result 1698 states and 1969 transitions. [2020-11-06 23:46:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:46:13,596 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-11-06 23:46:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:13,605 INFO L225 Difference]: With dead ends: 1698 [2020-11-06 23:46:13,605 INFO L226 Difference]: Without dead ends: 1185 [2020-11-06 23:46:13,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-06 23:46:13,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2020-11-06 23:46:14,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1057. [2020-11-06 23:46:14,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-11-06 23:46:14,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1176 transitions. [2020-11-06 23:46:14,161 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1176 transitions. Word has length 167 [2020-11-06 23:46:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:14,162 INFO L481 AbstractCegarLoop]: Abstraction has 1057 states and 1176 transitions. [2020-11-06 23:46:14,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-06 23:46:14,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1176 transitions. [2020-11-06 23:46:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-11-06 23:46:14,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:14,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:14,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-06 23:46:14,166 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]=== [2020-11-06 23:46:14,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:14,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1297016334, now seen corresponding path program 1 times [2020-11-06 23:46:14,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:14,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154074848] [2020-11-06 23:46:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:14,170 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,596 WARN L194 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:14,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-11-06 23:46:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-06 23:46:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-06 23:46:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:14,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154074848] [2020-11-06 23:46:14,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:14,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:46:14,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561614248] [2020-11-06 23:46:14,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:46:14,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:14,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:46:14,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:46:14,802 INFO L87 Difference]: Start difference. First operand 1057 states and 1176 transitions. Second operand 10 states. [2020-11-06 23:46:15,431 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:17,119 WARN L194 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:17,529 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:18,004 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:18,413 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:18,787 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:19,760 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:20,118 WARN L194 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:20,619 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:21,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:21,711 INFO L93 Difference]: Finished difference Result 1318 states and 1540 transitions. [2020-11-06 23:46:21,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-06 23:46:21,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-11-06 23:46:21,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:21,720 INFO L225 Difference]: With dead ends: 1318 [2020-11-06 23:46:21,720 INFO L226 Difference]: Without dead ends: 1314 [2020-11-06 23:46:21,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-06 23:46:21,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-11-06 23:46:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1057. [2020-11-06 23:46:22,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-11-06 23:46:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1173 transitions. [2020-11-06 23:46:22,264 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1173 transitions. Word has length 172 [2020-11-06 23:46:22,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:22,265 INFO L481 AbstractCegarLoop]: Abstraction has 1057 states and 1173 transitions. [2020-11-06 23:46:22,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:46:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1173 transitions. [2020-11-06 23:46:22,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-06 23:46:22,270 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:22,271 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:22,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 23:46:22,272 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]=== [2020-11-06 23:46:22,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:22,272 INFO L82 PathProgramCache]: Analyzing trace with hash 978786390, now seen corresponding path program 1 times [2020-11-06 23:46:22,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:22,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128389850] [2020-11-06 23:46:22,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:22,276 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,644 WARN L194 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:22,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:46:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-06 23:46:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-06 23:46:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:22,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128389850] [2020-11-06 23:46:22,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:22,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-06 23:46:22,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119869532] [2020-11-06 23:46:22,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 23:46:22,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:22,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 23:46:22,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-06 23:46:22,853 INFO L87 Difference]: Start difference. First operand 1057 states and 1173 transitions. Second operand 10 states. [2020-11-06 23:46:24,548 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:24,939 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:25,346 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-06 23:46:25,782 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:26,212 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:26,591 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:28,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:28,284 INFO L93 Difference]: Finished difference Result 2408 states and 2863 transitions. [2020-11-06 23:46:28,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-06 23:46:28,285 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2020-11-06 23:46:28,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:28,295 INFO L225 Difference]: With dead ends: 2408 [2020-11-06 23:46:28,295 INFO L226 Difference]: Without dead ends: 1466 [2020-11-06 23:46:28,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-11-06 23:46:28,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2020-11-06 23:46:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1089. [2020-11-06 23:46:28,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1089 states. [2020-11-06 23:46:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1205 transitions. [2020-11-06 23:46:28,836 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1205 transitions. Word has length 218 [2020-11-06 23:46:28,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:28,837 INFO L481 AbstractCegarLoop]: Abstraction has 1089 states and 1205 transitions. [2020-11-06 23:46:28,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 23:46:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1205 transitions. [2020-11-06 23:46:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-06 23:46:28,842 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:28,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:28,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-06 23:46:28,843 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]=== [2020-11-06 23:46:28,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:28,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1876381514, now seen corresponding path program 1 times [2020-11-06 23:46:28,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:28,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59382342] [2020-11-06 23:46:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:28,847 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,237 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:29,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:46:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-06 23:46:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-06 23:46:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:29,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:29,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59382342] [2020-11-06 23:46:29,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:29,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-06 23:46:29,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159335382] [2020-11-06 23:46:29,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-06 23:46:29,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:29,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-06 23:46:29,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-11-06 23:46:29,474 INFO L87 Difference]: Start difference. First operand 1089 states and 1205 transitions. Second operand 13 states. [2020-11-06 23:46:30,239 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-06 23:46:30,632 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:31,014 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:31,395 WARN L194 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:31,762 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:32,873 WARN L194 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:33,283 WARN L194 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:33,688 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:34,126 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:34,556 WARN L194 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-06 23:46:36,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:36,392 INFO L93 Difference]: Finished difference Result 2476 states and 2935 transitions. [2020-11-06 23:46:36,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-06 23:46:36,393 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2020-11-06 23:46:36,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:36,403 INFO L225 Difference]: With dead ends: 2476 [2020-11-06 23:46:36,403 INFO L226 Difference]: Without dead ends: 1502 [2020-11-06 23:46:36,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-11-06 23:46:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2020-11-06 23:46:36,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1113. [2020-11-06 23:46:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2020-11-06 23:46:36,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1229 transitions. [2020-11-06 23:46:36,946 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1229 transitions. Word has length 218 [2020-11-06 23:46:36,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:36,946 INFO L481 AbstractCegarLoop]: Abstraction has 1113 states and 1229 transitions. [2020-11-06 23:46:36,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-06 23:46:36,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1229 transitions. [2020-11-06 23:46:36,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-11-06 23:46:36,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:36,950 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:46:36,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-06 23:46:36,950 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]=== [2020-11-06 23:46:36,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:36,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1798114035, now seen corresponding path program 1 times [2020-11-06 23:46:36,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:36,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408298292] [2020-11-06 23:46:36,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:36,954 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,332 WARN L194 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:37,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-06 23:46:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-06 23:46:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-11-06 23:46:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-11-06 23:46:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:37,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408298292] [2020-11-06 23:46:37,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:37,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 23:46:37,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934134687] [2020-11-06 23:46:37,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 23:46:37,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:37,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 23:46:37,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-06 23:46:37,539 INFO L87 Difference]: Start difference. First operand 1113 states and 1229 transitions. Second operand 7 states. [2020-11-06 23:46:38,236 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:38,998 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:46:42,461 INFO L93 Difference]: Finished difference Result 3634 states and 4391 transitions. [2020-11-06 23:46:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-06 23:46:42,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-11-06 23:46:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:46:42,478 INFO L225 Difference]: With dead ends: 3634 [2020-11-06 23:46:42,478 INFO L226 Difference]: Without dead ends: 2636 [2020-11-06 23:46:42,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-11-06 23:46:42,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2020-11-06 23:46:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2157. [2020-11-06 23:46:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-11-06 23:46:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 2445 transitions. [2020-11-06 23:46:43,617 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 2445 transitions. Word has length 218 [2020-11-06 23:46:43,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:46:43,618 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 2445 transitions. [2020-11-06 23:46:43,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 23:46:43,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 2445 transitions. [2020-11-06 23:46:43,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-11-06 23:46:43,623 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:46:43,624 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] [2020-11-06 23:46:43,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-06 23:46:43,624 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]=== [2020-11-06 23:46:43,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:46:43,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1211780259, now seen corresponding path program 1 times [2020-11-06 23:46:43,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:46:43,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045034598] [2020-11-06 23:46:43,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:46:43,628 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-06 23:46:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,014 WARN L194 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-06 23:46:44,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 23:46:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-06 23:46:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-06 23:46:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-06 23:46:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-06 23:46:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-06 23:46:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-11-06 23:46:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-11-06 23:46:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-06 23:46:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 23:46:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-06 23:46:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-06 23:46:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 23:46:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-11-06 23:46:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-11-06 23:46:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 23:46:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 23:46:44,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045034598] [2020-11-06 23:46:44,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 23:46:44,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-11-06 23:46:44,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640981178] [2020-11-06 23:46:44,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-06 23:46:44,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-06 23:46:44,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-06 23:46:44,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-11-06 23:46:44,550 INFO L87 Difference]: Start difference. First operand 2157 states and 2445 transitions. Second operand 20 states. [2020-11-06 23:46:45,335 WARN L194 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:45,869 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-06 23:46:46,299 WARN L194 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-11-06 23:46:46,734 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:47,165 WARN L194 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-06 23:46:47,574 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:48,657 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-06 23:46:49,733 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:50,190 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:50,820 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:51,313 WARN L194 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:53,240 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:53,790 WARN L194 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:54,241 WARN L194 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:54,745 WARN L194 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:55,177 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:55,675 WARN L194 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:56,083 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-06 23:46:56,559 WARN L194 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-06 23:46:57,355 WARN L194 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-06 23:46:58,225 WARN L194 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 208 [2020-11-06 23:46:59,021 WARN L194 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-11-06 23:47:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 23:47:01,280 INFO L93 Difference]: Finished difference Result 4584 states and 5367 transitions. [2020-11-06 23:47:01,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-11-06 23:47:01,280 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 223 [2020-11-06 23:47:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 23:47:01,296 INFO L225 Difference]: With dead ends: 4584 [2020-11-06 23:47:01,297 INFO L226 Difference]: Without dead ends: 2542 [2020-11-06 23:47:01,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=563, Invalid=2407, Unknown=0, NotChecked=0, Total=2970 [2020-11-06 23:47:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2020-11-06 23:47:02,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2071. [2020-11-06 23:47:02,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2071 states. [2020-11-06 23:47:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 2313 transitions. [2020-11-06 23:47:02,225 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 2313 transitions. Word has length 223 [2020-11-06 23:47:02,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 23:47:02,225 INFO L481 AbstractCegarLoop]: Abstraction has 2071 states and 2313 transitions. [2020-11-06 23:47:02,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-06 23:47:02,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 2313 transitions. [2020-11-06 23:47:02,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-11-06 23:47:02,230 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 23:47:02,231 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 23:47:02,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-06 23:47:02,232 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]=== [2020-11-06 23:47:02,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 23:47:02,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1931388439, now seen corresponding path program 1 times [2020-11-06 23:47:02,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-06 23:47:02,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318684468] [2020-11-06 23:47:02,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 23:47:02,639 WARN L194 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2020-11-06 23:47:02,792 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-11-06 23:47:03,477 WARN L194 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 173 [2020-11-06 23:47:04,134 WARN L194 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 174 [2020-11-06 23:47:04,730 WARN L194 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 174 [2020-11-06 23:47:05,343 WARN L194 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 173 [2020-11-06 23:47:05,965 WARN L194 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 173 [2020-11-06 23:47:06,635 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 173 [2020-11-06 23:47:07,277 WARN L194 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 174 [2020-11-06 23:47:07,915 WARN L194 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 174 [2020-11-06 23:47:07,919 INFO L316 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-11-06 23:47:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:47:08,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:47:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 23:47:08,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 23:47:08,659 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-06 23:47:08,659 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 23:47:08,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-06 23:47:08,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:47:08 BoogieIcfgContainer [2020-11-06 23:47:08,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 23:47:08,705 INFO L168 Benchmark]: Toolchain (without parser) took 84045.77 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 880.8 MB). Free memory was 126.7 MB in the beginning and 590.2 MB in the end (delta: -463.5 MB). Peak memory consumption was 418.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:08,706 INFO L168 Benchmark]: CDTParser took 1.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 75.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 23:47:08,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.87 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 105.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:08,707 INFO L168 Benchmark]: Boogie Preprocessor took 170.22 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 132.1 MB in the end (delta: -26.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:08,708 INFO L168 Benchmark]: RCFGBuilder took 1415.15 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 86.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:08,709 INFO L168 Benchmark]: TraceAbstraction took 81882.94 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 880.8 MB). Free memory was 86.2 MB in the beginning and 590.2 MB in the end (delta: -503.9 MB). Peak memory consumption was 376.9 MB. Max. memory is 8.0 GB. [2020-11-06 23:47:08,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 75.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 563.87 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 105.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 170.22 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 132.1 MB in the end (delta: -26.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1415.15 ms. Allocated memory is still 151.0 MB. Free memory was 132.1 MB in the beginning and 86.8 MB in the end (delta: 45.4 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 81882.94 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 880.8 MB). Free memory was 86.2 MB in the beginning and 590.2 MB in the end (delta: -503.9 MB). Peak memory consumption was 376.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L149] int pumpRunning = 0; [L150] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; [L519] FCALL select_helpers() [L520] FCALL select_features() [L521] CALL, EXPR valid_product() [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L521] RET, EXPR valid_product() [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L525] FCALL setup() [L526] CALL runTest() [L505] CALL test() [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) [L358] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L358] RET waterRise() [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L391] CALL timeShift() [L157] COND FALSE !(\read(pumpRunning)) [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND TRUE ! pumpRunning [L191] CALL, EXPR isHighWaterLevel() [L301] int retValue_acc ; [L302] int tmp ; [L303] int tmp___0 ; [L307] CALL, EXPR isHighWaterSensorDry() [L129] int retValue_acc ; [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); [L307] RET, EXPR isHighWaterSensorDry() [L307] tmp = isHighWaterSensorDry() [L309] COND FALSE !(\read(tmp)) [L312] tmp___0 = 1 [L314] retValue_acc = tmp___0 [L315] return (retValue_acc); [L191] RET, EXPR isHighWaterLevel() [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L195] CALL activatePump() [L220] int tmp ; [L224] CALL, EXPR isMethaneAlarm() [L245] int retValue_acc ; [L249] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L249] RET, EXPR isMethaneLevelCritical() [L249] retValue_acc = isMethaneLevelCritical() [L251] return (retValue_acc); [L224] RET, EXPR isMethaneAlarm() [L224] tmp = isMethaneAlarm() [L226] COND FALSE !(\read(tmp)) [L230] CALL activatePump__wrappee__highWaterSensor() [L214] pumpRunning = 1 [L230] RET activatePump__wrappee__highWaterSensor() [L195] RET activatePump() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification1_spec__1() [L413] int tmp ; [L414] int tmp___0 ; [L418] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L418] RET, EXPR isMethaneLevelCritical() [L418] tmp = isMethaneLevelCritical() [L420] COND FALSE !(\read(tmp)) [L172] RET __utac_acc__Specification1_spec__1() [L391] RET timeShift() [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) [L368] CALL changeMethaneLevel() [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 [L368] RET changeMethaneLevel() [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L391] CALL timeShift() [L157] COND TRUE \read(pumpRunning) [L159] CALL lowerWaterLevel() [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 [L159] RET lowerWaterLevel() [L164] COND TRUE \read(systemActive) [L166] CALL processEnvironment() [L186] int tmp ; [L189] COND FALSE !(! pumpRunning) [L204] FCALL processEnvironment__wrappee__base() [L166] RET processEnvironment() [L172] CALL __utac_acc__Specification1_spec__1() [L413] int tmp ; [L414] int tmp___0 ; [L418] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L418] RET, EXPR isMethaneLevelCritical() [L418] tmp = isMethaneLevelCritical() [L420] COND TRUE \read(tmp) [L422] CALL, EXPR isPumpRunning() [L256] int retValue_acc ; [L259] retValue_acc = pumpRunning [L260] return (retValue_acc); [L422] RET, EXPR isPumpRunning() [L422] tmp___0 = isPumpRunning() [L424] COND TRUE \read(tmp___0) [L426] CALL __automaton_fail() [L407] CALL reach_error() [L3] __assert_fail("0", "minepump_spec1_product43.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 81.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 62.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2535 SDtfs, 5435 SDslu, 5789 SDs, 0 SdLazy, 11923 SolverSat, 1726 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 437 GetRequests, 265 SyntacticMatches, 4 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 32.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2157occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 2379 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...