/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_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:11:57,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:11:57,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:11:57,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:11:57,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:11:57,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:11:57,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:11:57,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:11:57,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:11:57,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:11:57,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:11:57,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:11:57,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:11:57,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:11:57,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:11:57,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:11:57,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:11:57,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:11:57,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:11:57,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:11:57,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:11:57,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:11:57,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:11:57,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:11:57,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:11:57,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:11:57,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:11:57,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:11:57,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:11:57,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:11:57,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:11:57,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:11:57,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:11:57,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:11:57,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:11:57,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:11:57,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:11:57,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:11:57,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:11:57,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:11:57,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:11:57,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:11:57,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:11:57,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:11:57,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:11:57,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:11:57,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:11:57,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:11:57,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:11:57,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:11:57,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:11:57,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:11:57,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:11:57,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:11:57,380 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:11:57,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:11:57,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:11:57,381 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:11:57,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:11:57,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:11:57,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:11:57,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:11:57,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:11:57,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:11:57,382 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:11:57,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:11:57,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:11:57,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:11:57,935 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:11:57,936 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:11:57,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-10-23 20:11:58,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a2cee7a0/a992a378416e4fe9951a7ba1cde713a3/FLAG15ebb56fd [2020-10-23 20:11:58,959 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:11:58,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-10-23 20:11:59,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a2cee7a0/a992a378416e4fe9951a7ba1cde713a3/FLAG15ebb56fd [2020-10-23 20:11:59,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a2cee7a0/a992a378416e4fe9951a7ba1cde713a3 [2020-10-23 20:11:59,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:11:59,286 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:11:59,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:11:59,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:11:59,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:11:59,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:59" (1/1) ... [2020-10-23 20:11:59,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b8d008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:11:59, skipping insertion in model container [2020-10-23 20:11:59,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:11:59" (1/1) ... [2020-10-23 20:11:59,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:11:59,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:11:59,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:11:59,928 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:12:00,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:12:00,100 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:12:00,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00 WrapperNode [2020-10-23 20:12:00,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:12:00,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:12:00,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:12:00,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:12:00,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... [2020-10-23 20:12:00,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... [2020-10-23 20:12:00,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... [2020-10-23 20:12:00,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... [2020-10-23 20:12:00,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... [2020-10-23 20:12:00,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... [2020-10-23 20:12:00,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... [2020-10-23 20:12:00,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:12:00,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:12:00,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:12:00,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:12:00,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:12:00,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:12:00,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:12:00,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:12:00,412 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:12:00,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:12:00,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:12:00,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:12:00,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:12:00,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:12:00,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:12:00,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:12:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:12:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:12:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:12:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:12:00,414 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:12:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:12:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:12:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:12:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:12:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:12:00,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:12:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:12:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:12:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:12:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:12:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:12:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:12:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 20:12:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:12:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:12:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:12:00,417 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:12:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:12:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:12:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:12:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:12:00,418 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:12:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:12:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:12:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:12:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:12:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:12:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:12:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:12:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:12:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:12:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:12:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:12:00,420 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:12:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:12:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:12:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:12:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:12:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:12:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:12:00,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:12:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:12:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:12:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:12:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:12:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:12:00,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:12:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:12:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:12:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:12:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:12:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:12:00,423 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:12:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:12:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:12:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:12:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:12:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:12:00,424 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:12:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:12:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:12:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:12:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:12:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:12:00,425 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:12:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:12:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:12:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:12:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:12:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:12:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 20:12:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:12:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:12:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:12:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:12:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 20:12:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:12:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:12:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:12:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:12:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:12:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:12:01,955 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:12:01,956 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:12:01,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:12:01 BoogieIcfgContainer [2020-10-23 20:12:01,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:12:01,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:12:01,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:12:01,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:12:01,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:11:59" (1/3) ... [2020-10-23 20:12:01,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197b9539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:12:01, skipping insertion in model container [2020-10-23 20:12:01,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:12:00" (2/3) ... [2020-10-23 20:12:01,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197b9539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:12:01, skipping insertion in model container [2020-10-23 20:12:01,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:12:01" (3/3) ... [2020-10-23 20:12:01,973 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-10-23 20:12:01,992 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:12:02,002 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:12:02,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:12:02,060 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:12:02,061 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:12:02,061 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:12:02,061 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:12:02,061 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:12:02,061 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:12:02,062 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:12:02,062 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:12:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states. [2020-10-23 20:12:02,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:12:02,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:02,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:12:02,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:12:02,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:02,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1962496396, now seen corresponding path program 1 times [2020-10-23 20:12:02,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:02,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864349453] [2020-10-23 20:12:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:02,254 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,062 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:03,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:12:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:12:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:12:03,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864349453] [2020-10-23 20:12:03,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:03,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:12:03,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120636663] [2020-10-23 20:12:03,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:12:03,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:03,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:12:03,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:12:03,306 INFO L87 Difference]: Start difference. First operand 334 states. Second operand 3 states. [2020-10-23 20:12:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:05,407 INFO L93 Difference]: Finished difference Result 530 states and 630 transitions. [2020-10-23 20:12:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:12:05,409 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:12:05,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:05,431 INFO L225 Difference]: With dead ends: 530 [2020-10-23 20:12:05,431 INFO L226 Difference]: Without dead ends: 326 [2020-10-23 20:12:05,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:12:05,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-10-23 20:12:05,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 280. [2020-10-23 20:12:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-23 20:12:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 305 transitions. [2020-10-23 20:12:05,690 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 305 transitions. Word has length 148 [2020-10-23 20:12:05,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:05,692 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 305 transitions. [2020-10-23 20:12:05,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:12:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 305 transitions. [2020-10-23 20:12:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:12:05,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:05,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:12:05,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:12:05,699 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:12:05,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:05,700 INFO L82 PathProgramCache]: Analyzing trace with hash -2072973728, now seen corresponding path program 1 times [2020-10-23 20:12:05,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:05,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1068644478] [2020-10-23 20:12:05,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:05,707 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,243 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:06,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:12:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:12:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:12:06,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1068644478] [2020-10-23 20:12:06,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:06,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:12:06,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759217657] [2020-10-23 20:12:06,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:12:06,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:06,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:12:06,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:12:06,383 INFO L87 Difference]: Start difference. First operand 280 states and 305 transitions. Second operand 4 states. [2020-10-23 20:12:07,338 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:08,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:08,836 INFO L93 Difference]: Finished difference Result 434 states and 489 transitions. [2020-10-23 20:12:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:12:08,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:12:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:08,845 INFO L225 Difference]: With dead ends: 434 [2020-10-23 20:12:08,845 INFO L226 Difference]: Without dead ends: 309 [2020-10-23 20:12:08,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:12:08,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-10-23 20:12:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 270. [2020-10-23 20:12:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-23 20:12:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2020-10-23 20:12:08,991 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 149 [2020-10-23 20:12:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:08,994 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2020-10-23 20:12:08,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:12:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2020-10-23 20:12:08,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:12:08,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:08,999 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] [2020-10-23 20:12:09,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:12:09,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:12:09,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:09,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1370948267, now seen corresponding path program 1 times [2020-10-23 20:12:09,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:09,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240255578] [2020-10-23 20:12:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:09,006 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,532 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:09,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:12:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:12:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:12:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:12:09,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240255578] [2020-10-23 20:12:09,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:09,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:12:09,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620180355] [2020-10-23 20:12:09,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:12:09,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:09,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:12:09,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:12:09,768 INFO L87 Difference]: Start difference. First operand 270 states and 292 transitions. Second operand 10 states. [2020-10-23 20:12:10,562 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:11,060 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:11,510 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:12:11,930 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:12,355 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:12,829 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:14,119 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:17,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:17,794 INFO L93 Difference]: Finished difference Result 740 states and 861 transitions. [2020-10-23 20:12:17,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 20:12:17,800 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:12:17,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:17,813 INFO L225 Difference]: With dead ends: 740 [2020-10-23 20:12:17,813 INFO L226 Difference]: Without dead ends: 585 [2020-10-23 20:12:17,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-10-23 20:12:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2020-10-23 20:12:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 484. [2020-10-23 20:12:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-10-23 20:12:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 542 transitions. [2020-10-23 20:12:18,098 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 542 transitions. Word has length 162 [2020-10-23 20:12:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:18,101 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 542 transitions. [2020-10-23 20:12:18,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:12:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 542 transitions. [2020-10-23 20:12:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:12:18,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:18,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:12:18,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:12:18,107 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:12:18,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:18,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1345615671, now seen corresponding path program 1 times [2020-10-23 20:12:18,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:18,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353399941] [2020-10-23 20:12:18,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:18,118 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,632 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:18,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:12:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 20:12:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:12:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:12:18,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353399941] [2020-10-23 20:12:18,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:18,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:12:18,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728511172] [2020-10-23 20:12:18,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:12:18,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:18,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:12:18,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:12:18,932 INFO L87 Difference]: Start difference. First operand 484 states and 542 transitions. Second operand 14 states. [2020-10-23 20:12:19,713 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:20,296 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:20,710 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:21,136 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:21,577 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:21,978 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:22,918 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:12:24,510 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:24,983 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:25,625 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:26,139 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:12:26,618 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:27,050 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:12:27,480 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:12:27,951 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:28,370 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:28,980 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:29,577 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:12:30,143 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:12:30,720 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:12:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:34,000 INFO L93 Difference]: Finished difference Result 1687 states and 2110 transitions. [2020-10-23 20:12:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 20:12:34,001 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 167 [2020-10-23 20:12:34,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:34,014 INFO L225 Difference]: With dead ends: 1687 [2020-10-23 20:12:34,014 INFO L226 Difference]: Without dead ends: 1318 [2020-10-23 20:12:34,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 20:12:34,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2020-10-23 20:12:34,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1175. [2020-10-23 20:12:34,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2020-10-23 20:12:34,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1387 transitions. [2020-10-23 20:12:34,576 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1387 transitions. Word has length 167 [2020-10-23 20:12:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:34,577 INFO L481 AbstractCegarLoop]: Abstraction has 1175 states and 1387 transitions. [2020-10-23 20:12:34,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:12:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1387 transitions. [2020-10-23 20:12:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 20:12:34,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:34,583 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 20:12:34,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:12:34,584 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:12:34,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:34,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1448759748, now seen corresponding path program 1 times [2020-10-23 20:12:34,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:34,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113645471] [2020-10-23 20:12:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:34,589 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:12:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,051 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:12:35,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:12:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:12:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:12:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:12:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:12:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 20:12:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:12:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:12:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 20:12:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:12:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:12:35,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113645471] [2020-10-23 20:12:35,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:12:35,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:12:35,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548576135] [2020-10-23 20:12:35,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:12:35,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:12:35,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:12:35,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:12:35,202 INFO L87 Difference]: Start difference. First operand 1175 states and 1387 transitions. Second operand 6 states. [2020-10-23 20:12:35,894 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:12:39,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:12:39,545 INFO L93 Difference]: Finished difference Result 2782 states and 3452 transitions. [2020-10-23 20:12:39,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:12:39,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-10-23 20:12:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:12:39,565 INFO L225 Difference]: With dead ends: 2782 [2020-10-23 20:12:39,565 INFO L226 Difference]: Without dead ends: 1722 [2020-10-23 20:12:39,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:12:39,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2020-10-23 20:12:40,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1594. [2020-10-23 20:12:40,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1594 states. [2020-10-23 20:12:40,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 1856 transitions. [2020-10-23 20:12:40,313 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 1856 transitions. Word has length 172 [2020-10-23 20:12:40,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:12:40,313 INFO L481 AbstractCegarLoop]: Abstraction has 1594 states and 1856 transitions. [2020-10-23 20:12:40,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:12:40,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 1856 transitions. [2020-10-23 20:12:40,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-23 20:12:40,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:12:40,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:12:40,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:12:40,321 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:12:40,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:12:40,322 INFO L82 PathProgramCache]: Analyzing trace with hash 886237372, now seen corresponding path program 1 times [2020-10-23 20:12:40,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:12:40,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852347471] [2020-10-23 20:12:40,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:12:40,539 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:40,846 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:41,089 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:41,351 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:41,580 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:41,827 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:42,064 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:42,304 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:42,557 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:42,796 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:43,038 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-23 20:12:43,286 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:43,560 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:43,822 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:44,079 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:44,350 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:44,612 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-23 20:12:44,863 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-23 20:12:47,736 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:50,427 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:50,440 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:53,052 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:53,066 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:12:55,720 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:58,272 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:12:59,677 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:12:59,683 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:02,226 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:03,347 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:03,356 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:04,807 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:07,299 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:09,815 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:09,821 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:12,422 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:12,428 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:14,972 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:17,536 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:13:17,542 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:20,160 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:22,737 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:22,746 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:25,344 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:25,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:27,904 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:27,914 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:30,513 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:30,518 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:33,156 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:33,160 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:34,681 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:34,688 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:36,069 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:13:36,075 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:38,648 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:38,652 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:41,249 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2020-10-23 20:13:41,254 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:41,259 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:13:43,788 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:43,792 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:46,467 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:13:46,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:47,800 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:47,808 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:50,399 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:52,944 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-10-23 20:13:52,950 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:54,885 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:13:54,889 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:13:57,449 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 162 [2020-10-23 20:14:00,074 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:14:00,079 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:00,082 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:00,510 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:00,929 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:01,348 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:01,797 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:02,245 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:02,640 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:03,016 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:03,440 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2020-10-23 20:14:03,443 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:06,121 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:06,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:07,893 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:07,897 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:10,495 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:10,501 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:13,117 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:13,121 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:15,808 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:15,812 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:18,456 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:18,460 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:21,073 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:23,796 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2020-10-23 20:14:23,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:23,811 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:24,198 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:24,592 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:25,018 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:25,467 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:25,899 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:26,357 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:26,757 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:27,160 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:14:27,163 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:29,750 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:32,553 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:32,557 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:35,158 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:35,162 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:37,873 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:37,880 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:40,495 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:40,499 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:43,061 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:43,066 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:45,644 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:45,648 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:47,401 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:47,406 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:14:49,962 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:49,968 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:52,519 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:52,521 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:55,081 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:14:55,084 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:14:57,697 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:14:57,701 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:00,304 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:01,949 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:01,952 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:04,548 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:04,550 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:07,076 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:07,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:07,083 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:09,567 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:12,095 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:12,098 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:14,690 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:14,693 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:16,148 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:16,151 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:18,700 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:18,703 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:21,208 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:21,211 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:22,734 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 167 [2020-10-23 20:15:22,736 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:25,228 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 165 [2020-10-23 20:15:25,232 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:25,235 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:27,792 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:27,795 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:30,114 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:32,702 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:32,705 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:35,308 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:37,862 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:37,865 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:40,508 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:40,511 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:43,153 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 174 [2020-10-23 20:15:43,156 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:45,734 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2020-10-23 20:15:45,736 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:45,740 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:46,112 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:46,477 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:46,834 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:47,187 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:47,569 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:47,940 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:48,309 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:15:48,678 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:15:48,680 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:15:51,267 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:15:51,270 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:53,323 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:15:53,327 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:15:55,878 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:15:58,468 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 167 [2020-10-23 20:16:01,022 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:01,026 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:03,628 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 166 [2020-10-23 20:16:03,631 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:06,195 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2020-10-23 20:16:06,199 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:08,750 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 165 [2020-10-23 20:16:08,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:08,758 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:11,416 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:11,419 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:13,984 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:16,637 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:16,641 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:19,274 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:19,278 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:21,939 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:21,944 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:24,541 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:24,543 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:27,123 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:27,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:29,695 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:29,699 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:29,702 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:30,089 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:30,493 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:16:30,879 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:16:31,267 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:16:31,667 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:32,046 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:16:32,415 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:32,807 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:32,809 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:35,366 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:35,369 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:38,075 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:38,078 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:40,690 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:40,695 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:43,323 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:43,326 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:45,993 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 171 [2020-10-23 20:16:45,997 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:48,634 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:48,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:51,309 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:51,313 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:53,918 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 169 [2020-10-23 20:16:53,923 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:16:53,927 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:54,317 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:54,716 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:55,106 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:16:55,492 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2020-10-23 20:16:55,868 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-10-23 20:16:56,244 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:16:56,627 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2020-10-23 20:16:57,027 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114 [2020-10-23 20:16:57,030 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:16:57,432 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:57,842 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:58,247 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:58,657 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:59,051 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:59,446 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:16:59,861 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:00,270 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2020-10-23 20:17:00,272 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:17:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:17:00,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:17:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:17:01,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:17:01,428 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:17:01,428 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:17:01,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:17:01,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:17:01 BoogieIcfgContainer [2020-10-23 20:17:01,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:17:01,473 INFO L168 Benchmark]: Toolchain (without parser) took 302194.37 ms. Allocated memory was 151.0 MB in the beginning and 701.5 MB in the end (delta: 550.5 MB). Free memory was 126.6 MB in the beginning and 584.9 MB in the end (delta: -458.3 MB). Peak memory consumption was 446.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:01,474 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:17:01,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.41 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 104.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:01,478 INFO L168 Benchmark]: Boogie Preprocessor took 196.55 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 133.2 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:01,479 INFO L168 Benchmark]: RCFGBuilder took 1657.82 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 106.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:01,483 INFO L168 Benchmark]: TraceAbstraction took 299510.03 ms. Allocated memory was 151.0 MB in the beginning and 701.5 MB in the end (delta: 550.5 MB). Free memory was 106.9 MB in the beginning and 584.9 MB in the end (delta: -478.0 MB). Peak memory consumption was 426.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:17:01,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 151.0 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 807.41 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 104.2 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 196.55 ms. Allocated memory is still 151.0 MB. Free memory was 104.2 MB in the beginning and 133.2 MB in the end (delta: -29.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1657.82 ms. Allocated memory is still 151.0 MB. Free memory was 133.2 MB in the beginning and 106.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 299510.03 ms. Allocated memory was 151.0 MB in the beginning and 701.5 MB in the end (delta: 550.5 MB). Free memory was 106.9 MB in the beginning and 584.9 MB in the end (delta: -478.0 MB). Peak memory consumption was 426.4 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: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L558] int pumpRunning = 0; [L559] int systemActive = 1; [L776] int waterLevel = 1; [L777] int methaneLevelCritical = 0; [L527] int retValue_acc ; [L528] int tmp ; [L532] FCALL select_helpers() [L533] FCALL select_features() [L534] CALL, EXPR valid_product() [L965] int retValue_acc ; [L968] retValue_acc = 1 [L969] return (retValue_acc); [L534] RET, EXPR valid_product() [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L538] FCALL setup() [L539] CALL runTest() [L518] CALL test() [L871] int splverifierCounter ; [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L875] int tmp___2 ; [L878] splverifierCounter = 0 [L880] COND TRUE 1 [L882] COND TRUE splverifierCounter < 4 [L888] tmp = __VERIFIER_nondet_int() [L890] COND TRUE \read(tmp) [L892] CALL waterRise() [L794] COND TRUE waterLevel < 2 [L795] waterLevel = waterLevel + 1 [L892] RET waterRise() [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND FALSE !(\read(tmp___2)) [L916] tmp___1 = __VERIFIER_nondet_int() [L918] COND TRUE \read(tmp___1) [L920] CALL stopSystem() [L756] COND FALSE !(\read(pumpRunning)) [L763] systemActive = 0 [L920] RET stopSystem() [L927] CALL timeShift() [L565] COND FALSE !(\read(pumpRunning)) [L572] COND FALSE !(\read(systemActive)) [L580] CALL __utac_acc__Specification4_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR getWaterLevel() [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); [L51] RET, EXPR getWaterLevel() [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) [L580] RET __utac_acc__Specification4_spec__1() [L927] RET timeShift() [L880] COND TRUE 1 [L882] COND TRUE splverifierCounter < 4 [L888] tmp = __VERIFIER_nondet_int() [L890] COND TRUE \read(tmp) [L892] CALL waterRise() [L794] COND TRUE waterLevel < 2 [L795] waterLevel = waterLevel + 1 [L892] RET waterRise() [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND FALSE !(\read(tmp___2)) [L916] tmp___1 = __VERIFIER_nondet_int() [L918] COND FALSE !(\read(tmp___1)) [L927] CALL timeShift() [L565] COND FALSE !(\read(pumpRunning)) [L572] COND FALSE !(\read(systemActive)) [L580] CALL __utac_acc__Specification4_spec__1() [L46] int tmp ; [L47] int tmp___0 ; [L51] CALL, EXPR getWaterLevel() [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); [L51] RET, EXPR getWaterLevel() [L51] tmp = getWaterLevel() [L53] COND TRUE tmp == 0 [L55] CALL, EXPR isPumpRunning() [L689] int retValue_acc ; [L692] retValue_acc = pumpRunning [L693] return (retValue_acc); [L55] RET, EXPR isPumpRunning() [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) [L59] CALL __automaton_fail() [L441] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product48.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 650 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 299.3s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 32.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1326 SDtfs, 2327 SDslu, 2424 SDs, 0 SdLazy, 5335 SolverSat, 836 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1594occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 457 StatesRemovedByMinimization, 5 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...