/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:52:07,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:52:07,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:52:07,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:52:07,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:52:07,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:52:07,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:52:07,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:52:07,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:52:07,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:52:07,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:52:07,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:52:07,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:52:07,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:52:07,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:52:07,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:52:07,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:52:07,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:52:07,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:52:08,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:52:08,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:52:08,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:52:08,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:52:08,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:52:08,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:52:08,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:52:08,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:52:08,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:52:08,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:52:08,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:52:08,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:52:08,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:52:08,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:52:08,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:52:08,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:52:08,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:52:08,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:52:08,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:52:08,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:52:08,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:52:08,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:52:08,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:52:08,053 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:52:08,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:52:08,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:52:08,058 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:52:08,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:52:08,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:52:08,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:52:08,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:52:08,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:52:08,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:52:08,061 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:52:08,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:52:08,062 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:52:08,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:52:08,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:52:08,063 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:52:08,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:52:08,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:52:08,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:52:08,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:52:08,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:52:08,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:52:08,064 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:52:08,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:52:08,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:52:08,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:52:08,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:52:08,463 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:52:08,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-10-23 19:52:08,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/171cde1f8/2a9bf634cf61416cbeff9e08aea06a28/FLAG252805276 [2020-10-23 19:52:09,212 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:52:09,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-10-23 19:52:09,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/171cde1f8/2a9bf634cf61416cbeff9e08aea06a28/FLAG252805276 [2020-10-23 19:52:09,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/171cde1f8/2a9bf634cf61416cbeff9e08aea06a28 [2020-10-23 19:52:09,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:52:09,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:52:09,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:52:09,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:52:09,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:52:09,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:52:09" (1/1) ... [2020-10-23 19:52:09,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4529ee49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:09, skipping insertion in model container [2020-10-23 19:52:09,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:52:09" (1/1) ... [2020-10-23 19:52:09,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:52:09,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:52:09,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:52:09,927 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:52:10,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:52:10,061 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:52:10,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10 WrapperNode [2020-10-23 19:52:10,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:52:10,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:52:10,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:52:10,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:52:10,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... [2020-10-23 19:52:10,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... [2020-10-23 19:52:10,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... [2020-10-23 19:52:10,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... [2020-10-23 19:52:10,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... [2020-10-23 19:52:10,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... [2020-10-23 19:52:10,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... [2020-10-23 19:52:10,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:52:10,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:52:10,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:52:10,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:52:10,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:52:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:52:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:52:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:52:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:52:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:52:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:52:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:52:10,249 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:52:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:52:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:52:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:52:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:52:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:52:10,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:52:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:52:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:52:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:52:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:52:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:52:10,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:52:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:52:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:52:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:52:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:52:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:52:10,252 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:52:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:52:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:52:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:52:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:52:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:52:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:52:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:52:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:52:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:52:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:52:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:52:10,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:52:10,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:52:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:52:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:52:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:52:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:52:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:52:10,255 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:52:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:52:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:52:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:52:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:52:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:52:10,256 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:52:10,257 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:52:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:52:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:52:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-10-23 19:52:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:52:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:52:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:52:10,258 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:52:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:52:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:52:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:52:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-10-23 19:52:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:52:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:52:10,259 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:52:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:52:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:52:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:52:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:52:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:52:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:52:10,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:52:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:52:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:52:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:52:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:52:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:52:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:52:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:52:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:52:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:52:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:52:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:52:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:52:11,589 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:52:11,589 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:52:11,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:52:11 BoogieIcfgContainer [2020-10-23 19:52:11,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:52:11,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:52:11,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:52:11,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:52:11,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:52:09" (1/3) ... [2020-10-23 19:52:11,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9934b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:52:11, skipping insertion in model container [2020-10-23 19:52:11,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:52:10" (2/3) ... [2020-10-23 19:52:11,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9934b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:52:11, skipping insertion in model container [2020-10-23 19:52:11,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:52:11" (3/3) ... [2020-10-23 19:52:11,604 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-10-23 19:52:11,616 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:52:11,622 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:52:11,635 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:52:11,659 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:52:11,659 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:52:11,659 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:52:11,660 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:52:11,660 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:52:11,660 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:52:11,660 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:52:11,660 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:52:11,683 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-10-23 19:52:11,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-23 19:52:11,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:11,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:11,705 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:11,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:11,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1810331735, now seen corresponding path program 1 times [2020-10-23 19:52:11,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:11,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588831282] [2020-10-23 19:52:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:11,792 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,443 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:12,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:52:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:52:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:12,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588831282] [2020-10-23 19:52:12,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:12,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:52:12,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460097072] [2020-10-23 19:52:12,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:52:12,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:12,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:52:12,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:52:12,692 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-10-23 19:52:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:14,139 INFO L93 Difference]: Finished difference Result 442 states and 523 transitions. [2020-10-23 19:52:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 19:52:14,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-10-23 19:52:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:14,161 INFO L225 Difference]: With dead ends: 442 [2020-10-23 19:52:14,162 INFO L226 Difference]: Without dead ends: 287 [2020-10-23 19:52:14,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:52:14,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-23 19:52:14,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 242. [2020-10-23 19:52:14,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-23 19:52:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 261 transitions. [2020-10-23 19:52:14,410 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 261 transitions. Word has length 154 [2020-10-23 19:52:14,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:14,411 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 261 transitions. [2020-10-23 19:52:14,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:52:14,412 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 261 transitions. [2020-10-23 19:52:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-23 19:52:14,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:14,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:14,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:52:14,417 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:14,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:14,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1813123454, now seen corresponding path program 1 times [2020-10-23 19:52:14,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:14,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128102684] [2020-10-23 19:52:14,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:14,422 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,010 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:15,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-23 19:52:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:52:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:15,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128102684] [2020-10-23 19:52:15,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:15,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 19:52:15,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696263749] [2020-10-23 19:52:15,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 19:52:15,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:15,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 19:52:15,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:52:15,138 INFO L87 Difference]: Start difference. First operand 242 states and 261 transitions. Second operand 5 states. [2020-10-23 19:52:15,964 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:16,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:16,916 INFO L93 Difference]: Finished difference Result 368 states and 414 transitions. [2020-10-23 19:52:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 19:52:16,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-10-23 19:52:16,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:16,925 INFO L225 Difference]: With dead ends: 368 [2020-10-23 19:52:16,925 INFO L226 Difference]: Without dead ends: 276 [2020-10-23 19:52:16,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:52:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-23 19:52:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 232. [2020-10-23 19:52:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-23 19:52:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2020-10-23 19:52:17,018 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 155 [2020-10-23 19:52:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:17,019 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2020-10-23 19:52:17,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 19:52:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2020-10-23 19:52:17,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-23 19:52:17,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:17,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:17,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:52:17,022 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash 886404485, now seen corresponding path program 1 times [2020-10-23 19:52:17,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:17,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949690943] [2020-10-23 19:52:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:17,027 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,516 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:17,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:17,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 19:52:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-23 19:52:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:17,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:17,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949690943] [2020-10-23 19:52:17,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:17,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:52:17,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161728785] [2020-10-23 19:52:17,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:52:17,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:17,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:52:17,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:52:17,861 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 10 states. [2020-10-23 19:52:18,582 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:19,054 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:52:19,441 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:19,852 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:20,235 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:20,624 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:22,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:22,249 INFO L93 Difference]: Finished difference Result 388 states and 440 transitions. [2020-10-23 19:52:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:52:22,250 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-23 19:52:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:22,256 INFO L225 Difference]: With dead ends: 388 [2020-10-23 19:52:22,257 INFO L226 Difference]: Without dead ends: 276 [2020-10-23 19:52:22,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:52:22,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-23 19:52:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 232. [2020-10-23 19:52:22,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-10-23 19:52:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 247 transitions. [2020-10-23 19:52:22,385 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 247 transitions. Word has length 164 [2020-10-23 19:52:22,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:22,386 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 247 transitions. [2020-10-23 19:52:22,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:52:22,386 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 247 transitions. [2020-10-23 19:52:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 19:52:22,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:22,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:22,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:52:22,390 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:22,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1282067418, now seen corresponding path program 1 times [2020-10-23 19:52:22,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:22,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089272661] [2020-10-23 19:52:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:22,395 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,804 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:22,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:52:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 19:52:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:22,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 19:52:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:23,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089272661] [2020-10-23 19:52:23,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:23,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 19:52:23,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227850596] [2020-10-23 19:52:23,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 19:52:23,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:23,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 19:52:23,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 19:52:23,014 INFO L87 Difference]: Start difference. First operand 232 states and 247 transitions. Second operand 7 states. [2020-10-23 19:52:23,742 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:25,565 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:26,248 INFO L93 Difference]: Finished difference Result 520 states and 597 transitions. [2020-10-23 19:52:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:52:26,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-10-23 19:52:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:26,254 INFO L225 Difference]: With dead ends: 520 [2020-10-23 19:52:26,254 INFO L226 Difference]: Without dead ends: 408 [2020-10-23 19:52:26,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:52:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-10-23 19:52:26,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 335. [2020-10-23 19:52:26,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-23 19:52:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 362 transitions. [2020-10-23 19:52:26,395 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 362 transitions. Word has length 172 [2020-10-23 19:52:26,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:26,395 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 362 transitions. [2020-10-23 19:52:26,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 19:52:26,396 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 362 transitions. [2020-10-23 19:52:26,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 19:52:26,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:26,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:26,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:52:26,399 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:26,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:26,399 INFO L82 PathProgramCache]: Analyzing trace with hash 632516204, now seen corresponding path program 1 times [2020-10-23 19:52:26,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:26,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000136515] [2020-10-23 19:52:26,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:26,403 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,806 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:26,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:52:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:26,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:27,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:27,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 19:52:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:27,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 19:52:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:27,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000136515] [2020-10-23 19:52:27,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:27,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:52:27,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152898606] [2020-10-23 19:52:27,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:52:27,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:27,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:52:27,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:52:27,087 INFO L87 Difference]: Start difference. First operand 335 states and 362 transitions. Second operand 10 states. [2020-10-23 19:52:27,791 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:29,082 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:29,482 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:29,899 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:30,276 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:30,728 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2020-10-23 19:52:31,142 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:32,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:32,827 INFO L93 Difference]: Finished difference Result 826 states and 977 transitions. [2020-10-23 19:52:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 19:52:32,830 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 19:52:32,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:32,835 INFO L225 Difference]: With dead ends: 826 [2020-10-23 19:52:32,836 INFO L226 Difference]: Without dead ends: 611 [2020-10-23 19:52:32,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:52:32,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2020-10-23 19:52:33,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 507. [2020-10-23 19:52:33,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-10-23 19:52:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 559 transitions. [2020-10-23 19:52:33,100 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 559 transitions. Word has length 196 [2020-10-23 19:52:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:33,101 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 559 transitions. [2020-10-23 19:52:33,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:52:33,101 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 559 transitions. [2020-10-23 19:52:33,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-23 19:52:33,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:33,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:33,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:52:33,106 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:33,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:33,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1531328401, now seen corresponding path program 1 times [2020-10-23 19:52:33,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:33,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1688409124] [2020-10-23 19:52:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:33,110 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,554 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:33,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:52:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 19:52:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 19:52:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:33,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1688409124] [2020-10-23 19:52:33,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:33,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:52:33,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976249565] [2020-10-23 19:52:33,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:52:33,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:33,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:52:33,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:52:33,743 INFO L87 Difference]: Start difference. First operand 507 states and 559 transitions. Second operand 10 states. [2020-10-23 19:52:34,458 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:36,239 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:36,622 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:37,053 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:37,430 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:37,807 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:38,185 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:38,555 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:39,050 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:40,364 INFO L93 Difference]: Finished difference Result 1357 states and 1603 transitions. [2020-10-23 19:52:40,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-23 19:52:40,364 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-10-23 19:52:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:40,371 INFO L225 Difference]: With dead ends: 1357 [2020-10-23 19:52:40,371 INFO L226 Difference]: Without dead ends: 970 [2020-10-23 19:52:40,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-10-23 19:52:40,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-10-23 19:52:40,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 817. [2020-10-23 19:52:40,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2020-10-23 19:52:40,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 907 transitions. [2020-10-23 19:52:40,724 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 907 transitions. Word has length 196 [2020-10-23 19:52:40,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:40,724 INFO L481 AbstractCegarLoop]: Abstraction has 817 states and 907 transitions. [2020-10-23 19:52:40,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:52:40,724 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 907 transitions. [2020-10-23 19:52:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 19:52:40,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:40,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:40,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:52:40,729 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:40,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:40,730 INFO L82 PathProgramCache]: Analyzing trace with hash 761309588, now seen corresponding path program 1 times [2020-10-23 19:52:40,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:40,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920347045] [2020-10-23 19:52:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:40,733 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,166 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:41,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:52:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:52:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 19:52:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 19:52:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:41,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920347045] [2020-10-23 19:52:41,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:41,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:52:41,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312434868] [2020-10-23 19:52:41,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:52:41,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:41,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:52:41,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:52:41,403 INFO L87 Difference]: Start difference. First operand 817 states and 907 transitions. Second operand 11 states. [2020-10-23 19:52:42,095 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:43,938 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:44,330 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:44,730 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:52:45,179 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:45,571 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:46,007 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:52:46,395 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:46,815 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:48,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:48,142 INFO L93 Difference]: Finished difference Result 1789 states and 2093 transitions. [2020-10-23 19:52:48,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 19:52:48,143 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 201 [2020-10-23 19:52:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:48,151 INFO L225 Difference]: With dead ends: 1789 [2020-10-23 19:52:48,151 INFO L226 Difference]: Without dead ends: 1092 [2020-10-23 19:52:48,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2020-10-23 19:52:48,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2020-10-23 19:52:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 813. [2020-10-23 19:52:48,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2020-10-23 19:52:48,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 899 transitions. [2020-10-23 19:52:48,496 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 899 transitions. Word has length 201 [2020-10-23 19:52:48,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:48,497 INFO L481 AbstractCegarLoop]: Abstraction has 813 states and 899 transitions. [2020-10-23 19:52:48,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:52:48,497 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 899 transitions. [2020-10-23 19:52:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-23 19:52:48,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:48,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:48,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 19:52:48,502 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:48,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:48,503 INFO L82 PathProgramCache]: Analyzing trace with hash -2035175674, now seen corresponding path program 1 times [2020-10-23 19:52:48,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:48,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150777570] [2020-10-23 19:52:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:48,506 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,872 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:48,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:52:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:52:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:48,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:49,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:49,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:49,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 19:52:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:49,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 19:52:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:49,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:49,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150777570] [2020-10-23 19:52:49,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:49,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 19:52:49,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039950636] [2020-10-23 19:52:49,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 19:52:49,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:49,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 19:52:49,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:52:49,097 INFO L87 Difference]: Start difference. First operand 813 states and 899 transitions. Second operand 11 states. [2020-10-23 19:52:50,620 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:51,026 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:51,438 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 19:52:51,827 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:52,225 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:52:52,591 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:54,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:52:54,186 INFO L93 Difference]: Finished difference Result 1807 states and 2124 transitions. [2020-10-23 19:52:54,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 19:52:54,187 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2020-10-23 19:52:54,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:52:54,195 INFO L225 Difference]: With dead ends: 1807 [2020-10-23 19:52:54,195 INFO L226 Difference]: Without dead ends: 1114 [2020-10-23 19:52:54,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-10-23 19:52:54,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2020-10-23 19:52:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 845. [2020-10-23 19:52:54,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2020-10-23 19:52:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 931 transitions. [2020-10-23 19:52:54,546 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 931 transitions. Word has length 202 [2020-10-23 19:52:54,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:52:54,547 INFO L481 AbstractCegarLoop]: Abstraction has 845 states and 931 transitions. [2020-10-23 19:52:54,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 19:52:54,547 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 931 transitions. [2020-10-23 19:52:54,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-23 19:52:54,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:52:54,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:52:54,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 19:52:54,550 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:52:54,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:52:54,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1285921446, now seen corresponding path program 1 times [2020-10-23 19:52:54,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:52:54,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600302934] [2020-10-23 19:52:54,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:52:54,554 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:52:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,957 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:52:54,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:52:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:52:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:52:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:54,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:52:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:52:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:52:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-23 19:52:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:52:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:52:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:52:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:52:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 19:52:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 19:52:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:52:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:52:55,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600302934] [2020-10-23 19:52:55,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:52:55,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:52:55,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711026096] [2020-10-23 19:52:55,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:52:55,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:52:55,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:52:55,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:52:55,199 INFO L87 Difference]: Start difference. First operand 845 states and 931 transitions. Second operand 14 states. [2020-10-23 19:52:55,982 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:52:56,376 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 19:52:56,776 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:57,162 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:52:57,527 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:58,567 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:58,951 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:52:59,336 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:52:59,735 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:53:00,111 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:53:01,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:01,737 INFO L93 Difference]: Finished difference Result 1618 states and 1885 transitions. [2020-10-23 19:53:01,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-23 19:53:01,738 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 202 [2020-10-23 19:53:01,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:01,743 INFO L225 Difference]: With dead ends: 1618 [2020-10-23 19:53:01,743 INFO L226 Difference]: Without dead ends: 893 [2020-10-23 19:53:01,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-10-23 19:53:01,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-10-23 19:53:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 700. [2020-10-23 19:53:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2020-10-23 19:53:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 755 transitions. [2020-10-23 19:53:02,137 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 755 transitions. Word has length 202 [2020-10-23 19:53:02,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:02,137 INFO L481 AbstractCegarLoop]: Abstraction has 700 states and 755 transitions. [2020-10-23 19:53:02,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:53:02,138 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 755 transitions. [2020-10-23 19:53:02,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-23 19:53:02,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:02,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:02,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 19:53:02,141 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:53:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:02,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1242272075, now seen corresponding path program 1 times [2020-10-23 19:53:02,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:02,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331276070] [2020-10-23 19:53:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:02,145 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:53:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,524 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:53:02,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:53:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 19:53:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 19:53:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 19:53:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 19:53:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 19:53:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:53:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:53:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:53:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:53:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 19:53:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 19:53:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-23 19:53:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-23 19:53:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:53:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:53:02,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331276070] [2020-10-23 19:53:02,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:53:02,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 19:53:02,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693837710] [2020-10-23 19:53:02,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 19:53:02,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:53:02,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 19:53:02,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 19:53:02,750 INFO L87 Difference]: Start difference. First operand 700 states and 755 transitions. Second operand 8 states. [2020-10-23 19:53:03,482 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:53:06,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:53:06,205 INFO L93 Difference]: Finished difference Result 1284 states and 1479 transitions. [2020-10-23 19:53:06,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-23 19:53:06,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-23 19:53:06,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:53:06,216 INFO L225 Difference]: With dead ends: 1284 [2020-10-23 19:53:06,216 INFO L226 Difference]: Without dead ends: 1280 [2020-10-23 19:53:06,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-10-23 19:53:06,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2020-10-23 19:53:06,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1014. [2020-10-23 19:53:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2020-10-23 19:53:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1095 transitions. [2020-10-23 19:53:06,809 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1095 transitions. Word has length 207 [2020-10-23 19:53:06,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:53:06,809 INFO L481 AbstractCegarLoop]: Abstraction has 1014 states and 1095 transitions. [2020-10-23 19:53:06,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 19:53:06,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1095 transitions. [2020-10-23 19:53:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-23 19:53:06,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:53:06,814 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:53:06,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 19:53:06,816 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 19:53:06,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:53:06,816 INFO L82 PathProgramCache]: Analyzing trace with hash -27595447, now seen corresponding path program 1 times [2020-10-23 19:53:06,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:53:06,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002561569] [2020-10-23 19:53:06,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:53:07,132 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2020-10-23 19:53:07,695 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-23 19:53:07,855 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:53:08,256 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-23 19:53:08,402 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:53:08,795 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-10-23 19:53:08,946 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 19:53:09,332 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-10-23 19:53:09,482 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 19:53:09,830 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 19:53:09,941 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-23 19:53:10,298 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2020-10-23 19:53:10,422 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 19:53:10,773 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2020-10-23 19:53:10,893 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 19:53:11,218 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2020-10-23 19:53:11,333 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-23 19:53:11,703 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-10-23 19:53:11,839 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 19:53:12,179 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 19:53:12,301 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-23 19:53:12,686 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2020-10-23 19:53:12,825 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 19:53:13,142 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2020-10-23 19:53:13,250 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 19:53:13,606 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2020-10-23 19:53:13,721 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-23 19:53:14,393 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:15,137 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:15,839 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:16,564 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:17,291 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:17,991 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:18,720 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:19,422 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:53:19,426 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:20,124 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:20,848 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:21,578 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:22,299 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:23,027 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:23,729 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:24,436 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:25,147 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:25,859 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:26,586 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:27,301 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:28,026 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:28,755 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:29,486 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:30,192 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:30,915 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:30,919 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:31,643 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:32,365 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:33,075 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:33,785 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:34,527 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:35,245 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:35,956 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:36,706 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:53:37,416 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:38,135 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:53:38,843 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:53:39,572 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 183 [2020-10-23 19:53:40,292 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:41,009 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:41,723 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:42,445 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 184 [2020-10-23 19:53:42,448 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:43,158 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:43,884 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:44,608 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:45,328 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:46,048 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:46,780 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:47,518 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:48,253 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:48,970 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:49,694 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:50,420 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:51,155 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:51,879 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 184 [2020-10-23 19:53:52,628 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:53,350 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:54,057 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 185 [2020-10-23 19:53:54,061 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:53:54,785 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:53:55,523 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:53:56,249 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:53:56,976 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:53:57,705 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:53:58,446 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:53:59,180 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:53:59,919 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:00,644 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:01,373 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:02,113 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:02,857 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:03,599 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:04,348 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:05,083 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:05,825 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:05,828 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:06,544 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:07,282 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:08,003 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:08,733 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:09,455 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:10,184 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:10,907 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:11,635 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:54:11,638 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:12,360 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:54:13,070 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2020-10-23 19:54:13,776 WARN L193 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2020-10-23 19:54:14,497 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2020-10-23 19:54:15,207 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:54:15,924 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:54:16,643 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2020-10-23 19:54:17,354 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 184 [2020-10-23 19:54:17,358 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:18,084 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:18,823 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:19,566 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:20,300 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:21,030 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:21,767 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:22,509 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:23,246 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2020-10-23 19:54:23,249 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:23,959 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:54:24,672 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:54:25,395 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:54:26,113 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:54:26,829 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 185 [2020-10-23 19:54:27,553 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:54:28,303 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:54:29,025 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 184 [2020-10-23 19:54:29,029 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:29,771 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:30,528 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:31,280 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:32,029 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:32,788 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:33,544 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:34,298 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:35,047 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:35,797 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:36,555 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:37,305 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:38,063 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:38,824 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:39,577 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:40,331 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:41,083 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:41,086 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:41,831 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:42,567 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:43,310 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:44,051 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:44,804 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:45,541 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:46,280 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:47,028 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-23 19:54:47,031 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:47,789 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:48,552 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:49,307 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:50,066 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:50,829 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:51,585 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:52,343 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:53,111 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:53,865 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:54,623 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:55,386 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:56,140 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:56,893 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:57,649 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:58,421 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:59,176 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 187 [2020-10-23 19:54:59,179 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:54:59,923 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:00,673 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:01,415 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:02,163 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:02,913 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:03,671 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:04,413 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:05,161 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-23 19:55:05,164 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:05,907 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:06,659 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:07,406 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:08,160 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:08,911 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:09,673 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:10,421 WARN L193 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:11,166 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 187 [2020-10-23 19:55:11,169 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:55:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:11,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:55:12,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:55:12,930 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:55:12,931 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:55:12,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-23 19:55:12,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:55:12 BoogieIcfgContainer [2020-10-23 19:55:12,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:55:12,961 INFO L168 Benchmark]: Toolchain (without parser) took 183442.42 ms. Allocated memory was 156.2 MB in the beginning and 755.0 MB in the end (delta: 598.7 MB). Free memory was 131.8 MB in the beginning and 509.3 MB in the end (delta: -377.6 MB). Peak memory consumption was 221.7 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:12,961 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 156.2 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:55:12,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.49 ms. Allocated memory is still 156.2 MB. Free memory was 131.0 MB in the beginning and 110.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:12,962 INFO L168 Benchmark]: Boogie Preprocessor took 94.62 ms. Allocated memory is still 156.2 MB. Free memory was 110.5 MB in the beginning and 106.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:12,963 INFO L168 Benchmark]: RCFGBuilder took 1435.55 ms. Allocated memory was 156.2 MB in the beginning and 204.5 MB in the end (delta: 48.2 MB). Free memory was 106.4 MB in the beginning and 183.2 MB in the end (delta: -76.8 MB). Peak memory consumption was 59.2 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:12,963 INFO L168 Benchmark]: TraceAbstraction took 181363.73 ms. Allocated memory was 204.5 MB in the beginning and 755.0 MB in the end (delta: 550.5 MB). Free memory was 182.7 MB in the beginning and 509.3 MB in the end (delta: -326.6 MB). Peak memory consumption was 223.3 MB. Max. memory is 8.0 GB. [2020-10-23 19:55:12,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 156.2 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 532.49 ms. Allocated memory is still 156.2 MB. Free memory was 131.0 MB in the beginning and 110.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 94.62 ms. Allocated memory is still 156.2 MB. Free memory was 110.5 MB in the beginning and 106.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1435.55 ms. Allocated memory was 156.2 MB in the beginning and 204.5 MB in the end (delta: 48.2 MB). Free memory was 106.4 MB in the beginning and 183.2 MB in the end (delta: -76.8 MB). Peak memory consumption was 59.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 181363.73 ms. Allocated memory was 204.5 MB in the beginning and 755.0 MB in the end (delta: 550.5 MB). Free memory was 182.7 MB in the beginning and 509.3 MB in the end (delta: -326.6 MB). Peak memory consumption was 223.3 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: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L294] int pumpRunning = 0; [L295] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L878] int methAndRunningLastTime ; [L259] int retValue_acc ; [L260] int tmp ; [L264] FCALL select_helpers() [L265] FCALL select_features() [L266] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L266] RET, EXPR valid_product() [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) [L270] FCALL setup() [L271] CALL runTest() [L252] CALL __utac_acc__Specification2_spec__1() [L883] methAndRunningLastTime = 0 [L252] RET __utac_acc__Specification2_spec__1() [L253] CALL test() [L448] int splverifierCounter ; [L449] int tmp ; [L450] int tmp___0 ; [L451] int tmp___1 ; [L452] int tmp___2 ; [L455] splverifierCounter = 0 [L457] COND TRUE 1 [L459] COND TRUE splverifierCounter < 4 [L465] tmp = __VERIFIER_nondet_int() [L467] COND TRUE \read(tmp) [L469] CALL waterRise() [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 [L469] RET waterRise() [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND TRUE \read(tmp___0) [L479] CALL changeMethaneLevel() [L117] COND FALSE !(\read(methaneLevelCritical)) [L120] methaneLevelCritical = 1 [L479] RET changeMethaneLevel() [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) [L500] CALL timeShift() [L302] COND FALSE !(\read(pumpRunning)) [L309] COND TRUE \read(systemActive) [L311] CALL processEnvironment() [L331] int tmp ; [L334] COND TRUE ! pumpRunning [L336] CALL, EXPR isHighWaterLevel() [L428] int retValue_acc ; [L429] int tmp ; [L430] int tmp___0 ; [L434] CALL, EXPR isHighWaterSensorDry() [L167] int retValue_acc ; [L170] COND FALSE !(waterLevel < 2) [L174] retValue_acc = 0 [L175] return (retValue_acc); [L434] RET, EXPR isHighWaterSensorDry() [L434] tmp = isHighWaterSensorDry() [L436] COND FALSE !(\read(tmp)) [L439] tmp___0 = 1 [L441] retValue_acc = tmp___0 [L442] return (retValue_acc); [L336] RET, EXPR isHighWaterLevel() [L336] tmp = isHighWaterLevel() [L338] COND TRUE \read(tmp) [L340] CALL activatePump() [L359] pumpRunning = 1 [L340] RET activatePump() [L311] RET processEnvironment() [L317] CALL __utac_acc__Specification2_spec__2() [L888] int tmp ; [L889] int tmp___0 ; [L893] CALL, EXPR isMethaneLevelCritical() [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); [L893] RET, EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L897] CALL, EXPR isPumpRunning() [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); [L897] RET, EXPR isPumpRunning() [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) [L900] COND FALSE !(\read(methAndRunningLastTime)) [L905] methAndRunningLastTime = 1 [L317] RET __utac_acc__Specification2_spec__2() [L500] RET timeShift() [L457] COND TRUE 1 [L459] COND TRUE splverifierCounter < 4 [L465] tmp = __VERIFIER_nondet_int() [L467] COND FALSE !(\read(tmp)) [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND FALSE !(\read(tmp___0)) [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) [L500] CALL timeShift() [L302] COND TRUE \read(pumpRunning) [L304] CALL lowerWaterLevel() [L93] COND FALSE !(waterLevel > 0) [L304] RET lowerWaterLevel() [L309] COND TRUE \read(systemActive) [L311] CALL processEnvironment() [L331] int tmp ; [L334] COND FALSE !(! pumpRunning) [L349] FCALL processEnvironment__wrappee__base() [L311] RET processEnvironment() [L317] CALL __utac_acc__Specification2_spec__2() [L888] int tmp ; [L889] int tmp___0 ; [L893] CALL, EXPR isMethaneLevelCritical() [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); [L893] RET, EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L897] CALL, EXPR isPumpRunning() [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); [L897] RET, EXPR isPumpRunning() [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) [L900] COND TRUE \read(methAndRunningLastTime) [L902] CALL __automaton_fail() [L286] CALL reach_error() [L3] __assert_fail("0", "minepump_spec2_product33.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 628 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 181.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 45.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2211 SDtfs, 5397 SDslu, 4733 SDs, 0 SdLazy, 8189 SolverSat, 1298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 445 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 23.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1014occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 1470 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...