/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:19:49,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:19:49,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:19:49,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:19:49,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:19:49,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:19:49,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:19:49,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:19:49,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:19:49,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:19:49,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:19:49,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:19:49,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:19:49,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:19:49,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:19:49,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:19:49,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:19:49,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:19:49,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:19:49,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:19:49,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:19:49,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:19:49,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:19:49,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:19:49,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:19:49,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:19:49,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:19:49,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:19:49,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:19:49,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:19:49,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:19:49,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:19:49,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:19:49,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:19:49,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:19:49,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:19:49,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:19:49,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:19:49,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:19:49,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:19:49,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:19:49,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:19:49,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:19:49,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:19:49,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:19:49,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:19:49,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:19:49,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:19:49,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:19:49,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:19:49,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:19:49,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:19:49,376 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:19:49,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:19:49,376 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:19:49,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:19:49,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:19:49,377 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:19:49,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:19:49,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:19:49,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:19:49,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:19:49,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:19:49,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:19:49,378 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:19:49,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:19:49,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:19:49,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:19:49,755 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:19:49,756 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:19:49,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2020-10-23 20:19:49,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1340ac540/59d95c4e731341a1bf3c493ced7a1293/FLAG4e0319897 [2020-10-23 20:19:50,587 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:19:50,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2020-10-23 20:19:50,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1340ac540/59d95c4e731341a1bf3c493ced7a1293/FLAG4e0319897 [2020-10-23 20:19:50,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1340ac540/59d95c4e731341a1bf3c493ced7a1293 [2020-10-23 20:19:50,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:19:50,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:19:50,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:50,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:19:50,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:19:50,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:50" (1/1) ... [2020-10-23 20:19:50,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761a363d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:50, skipping insertion in model container [2020-10-23 20:19:50,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:50" (1/1) ... [2020-10-23 20:19:50,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:19:50,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:19:51,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:51,238 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:19:51,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:19:51,432 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:19:51,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51 WrapperNode [2020-10-23 20:19:51,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:19:51,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:19:51,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:19:51,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:19:51,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... [2020-10-23 20:19:51,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:19:51,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:19:51,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:19:51,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:19:51,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:19:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:19:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:19:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:19:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:19:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:19:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:19:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:19:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:19:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:19:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 20:19:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:19:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:19:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:19:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:19:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:19:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:19:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:19:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:19:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:19:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:19:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:19:51,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:19:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:19:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:19:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 20:19:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:19:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:19:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:19:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:19:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:19:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:19:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:19:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:19:51,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:19:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:19:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:19:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:19:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:19:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:19:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:19:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:19:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:19:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:19:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-10-23 20:19:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-10-23 20:19:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-10-23 20:19:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:19:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:19:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:19:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:19:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:19:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 20:19:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:19:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:19:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:19:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:19:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:19:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:19:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:19:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:19:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:19:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:19:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:19:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:19:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:19:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:19:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:19:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 20:19:51,654 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-23 20:19:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:19:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:19:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:19:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:19:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:19:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:19:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:19:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:19:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:19:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:19:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:19:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:19:51,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:19:51,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:19:51,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:19:51,659 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:19:51,659 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:19:51,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:19:51,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:19:51,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:19:53,181 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:19:53,181 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:19:53,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:53 BoogieIcfgContainer [2020-10-23 20:19:53,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:19:53,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:19:53,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:19:53,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:19:53,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:50" (1/3) ... [2020-10-23 20:19:53,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4839593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:53, skipping insertion in model container [2020-10-23 20:19:53,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:51" (2/3) ... [2020-10-23 20:19:53,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4839593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:53, skipping insertion in model container [2020-10-23 20:19:53,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:53" (3/3) ... [2020-10-23 20:19:53,214 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2020-10-23 20:19:53,240 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:19:53,249 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:19:53,280 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:19:53,305 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:19:53,306 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:19:53,306 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:19:53,306 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:19:53,306 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:19:53,306 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:19:53,307 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:19:53,307 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:19:53,333 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-10-23 20:19:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-23 20:19:53,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:53,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:19:53,358 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:19:53,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:53,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1417096602, now seen corresponding path program 1 times [2020-10-23 20:19:53,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:53,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917816332] [2020-10-23 20:19:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:53,469 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,396 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:54,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:19:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 20:19:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:19:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:54,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917816332] [2020-10-23 20:19:54,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:54,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:19:54,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271627404] [2020-10-23 20:19:54,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:19:54,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:54,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:19:54,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:19:54,640 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 4 states. [2020-10-23 20:19:55,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:55,967 INFO L93 Difference]: Finished difference Result 493 states and 573 transitions. [2020-10-23 20:19:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 20:19:55,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-10-23 20:19:55,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:55,985 INFO L225 Difference]: With dead ends: 493 [2020-10-23 20:19:55,986 INFO L226 Difference]: Without dead ends: 312 [2020-10-23 20:19:55,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:19:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-10-23 20:19:56,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-10-23 20:19:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-10-23 20:19:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 289 transitions. [2020-10-23 20:19:56,191 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 289 transitions. Word has length 166 [2020-10-23 20:19:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:56,192 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 289 transitions. [2020-10-23 20:19:56,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:19:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 289 transitions. [2020-10-23 20:19:56,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 20:19:56,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:56,198 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:19:56,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:19:56,199 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:19:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:56,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1250215351, now seen corresponding path program 1 times [2020-10-23 20:19:56,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:56,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636056366] [2020-10-23 20:19:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:56,205 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,735 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:56,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:19:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-23 20:19:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-23 20:19:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:56,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636056366] [2020-10-23 20:19:56,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:56,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 20:19:56,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171737794] [2020-10-23 20:19:56,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 20:19:56,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:56,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 20:19:56,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:19:56,859 INFO L87 Difference]: Start difference. First operand 268 states and 289 transitions. Second operand 5 states. [2020-10-23 20:19:57,772 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:19:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:19:58,881 INFO L93 Difference]: Finished difference Result 419 states and 465 transitions. [2020-10-23 20:19:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:19:58,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-23 20:19:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:19:58,893 INFO L225 Difference]: With dead ends: 419 [2020-10-23 20:19:58,894 INFO L226 Difference]: Without dead ends: 301 [2020-10-23 20:19:58,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:19:58,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-23 20:19:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 258. [2020-10-23 20:19:59,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-23 20:19:59,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 276 transitions. [2020-10-23 20:19:59,009 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 276 transitions. Word has length 167 [2020-10-23 20:19:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:19:59,009 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 276 transitions. [2020-10-23 20:19:59,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 20:19:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 276 transitions. [2020-10-23 20:19:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-23 20:19:59,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:19:59,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:19:59,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:19:59,014 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:19:59,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:19:59,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1332477992, now seen corresponding path program 1 times [2020-10-23 20:19:59,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:19:59,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509944734] [2020-10-23 20:19:59,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:19:59,020 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:19:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,582 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:19:59,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:19:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:19:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:19:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:19:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:19:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:19:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:19:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:19:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:19:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:19:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:19:59,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509944734] [2020-10-23 20:19:59,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:19:59,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:19:59,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642787071] [2020-10-23 20:19:59,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:19:59,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:19:59,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:19:59,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:19:59,920 INFO L87 Difference]: Start difference. First operand 258 states and 276 transitions. Second operand 10 states. [2020-10-23 20:20:00,572 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:01,068 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:01,450 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:01,833 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:02,206 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:02,596 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:04,371 INFO L93 Difference]: Finished difference Result 439 states and 491 transitions. [2020-10-23 20:20:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:20:04,372 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2020-10-23 20:20:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:04,376 INFO L225 Difference]: With dead ends: 439 [2020-10-23 20:20:04,376 INFO L226 Difference]: Without dead ends: 301 [2020-10-23 20:20:04,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:20:04,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-23 20:20:04,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 258. [2020-10-23 20:20:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-23 20:20:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 275 transitions. [2020-10-23 20:20:04,482 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 275 transitions. Word has length 176 [2020-10-23 20:20:04,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:04,483 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 275 transitions. [2020-10-23 20:20:04,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:20:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 275 transitions. [2020-10-23 20:20:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-23 20:20:04,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:04,486 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:04,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:20:04,487 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 20:20:04,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:04,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1315641075, now seen corresponding path program 1 times [2020-10-23 20:20:04,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:04,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065673994] [2020-10-23 20:20:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:04,492 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,907 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:04,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:20:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:04,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:05,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:20:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:05,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:05,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-10-23 20:20:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:05,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-23 20:20:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:20:05,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065673994] [2020-10-23 20:20:05,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:05,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:20:05,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741998013] [2020-10-23 20:20:05,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:20:05,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:05,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:20:05,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:20:05,094 INFO L87 Difference]: Start difference. First operand 258 states and 275 transitions. Second operand 7 states. [2020-10-23 20:20:05,747 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:07,926 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:08,362 INFO L93 Difference]: Finished difference Result 572 states and 651 transitions. [2020-10-23 20:20:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 20:20:08,364 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-10-23 20:20:08,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:08,371 INFO L225 Difference]: With dead ends: 572 [2020-10-23 20:20:08,372 INFO L226 Difference]: Without dead ends: 434 [2020-10-23 20:20:08,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:20:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-23 20:20:08,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 364. [2020-10-23 20:20:08,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-23 20:20:08,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 394 transitions. [2020-10-23 20:20:08,544 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 394 transitions. Word has length 184 [2020-10-23 20:20:08,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:08,545 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 394 transitions. [2020-10-23 20:20:08,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:20:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 394 transitions. [2020-10-23 20:20:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-23 20:20:08,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:08,548 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:08,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:20:08,549 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 20:20:08,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:08,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1990047595, now seen corresponding path program 1 times [2020-10-23 20:20:08,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:08,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235207898] [2020-10-23 20:20:08,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:08,553 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:08,943 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:08,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:20:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:20:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-23 20:20:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:20:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:09,222 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 20:20:09,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235207898] [2020-10-23 20:20:09,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:09,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:20:09,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862340177] [2020-10-23 20:20:09,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:20:09,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:09,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:20:09,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:20:09,226 INFO L87 Difference]: Start difference. First operand 364 states and 394 transitions. Second operand 10 states. [2020-10-23 20:20:09,865 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:11,309 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:11,699 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:12,089 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:12,457 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:12,881 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:13,263 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:15,073 INFO L93 Difference]: Finished difference Result 913 states and 1071 transitions. [2020-10-23 20:20:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 20:20:15,074 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-10-23 20:20:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:15,079 INFO L225 Difference]: With dead ends: 913 [2020-10-23 20:20:15,079 INFO L226 Difference]: Without dead ends: 669 [2020-10-23 20:20:15,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-23 20:20:15,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2020-10-23 20:20:15,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 568. [2020-10-23 20:20:15,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-10-23 20:20:15,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 626 transitions. [2020-10-23 20:20:15,312 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 626 transitions. Word has length 208 [2020-10-23 20:20:15,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:15,312 INFO L481 AbstractCegarLoop]: Abstraction has 568 states and 626 transitions. [2020-10-23 20:20:15,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:20:15,313 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 626 transitions. [2020-10-23 20:20:15,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-23 20:20:15,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:15,316 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:15,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:20:15,317 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 20:20:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:15,317 INFO L82 PathProgramCache]: Analyzing trace with hash -173797010, now seen corresponding path program 1 times [2020-10-23 20:20:15,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:15,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52543217] [2020-10-23 20:20:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:15,321 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,731 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:15,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:20:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:20:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-10-23 20:20:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-23 20:20:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:20:15,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52543217] [2020-10-23 20:20:15,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:15,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:20:15,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712422342] [2020-10-23 20:20:15,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:20:15,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:15,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:20:15,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:20:15,914 INFO L87 Difference]: Start difference. First operand 568 states and 626 transitions. Second operand 10 states. [2020-10-23 20:20:16,552 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:17,514 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:17,917 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:19,302 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:19,668 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:20,078 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:20,672 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:21,059 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:21,411 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:21,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:21,866 INFO L93 Difference]: Finished difference Result 1110 states and 1270 transitions. [2020-10-23 20:20:21,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 20:20:21,868 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 208 [2020-10-23 20:20:21,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:21,874 INFO L225 Difference]: With dead ends: 1110 [2020-10-23 20:20:21,874 INFO L226 Difference]: Without dead ends: 662 [2020-10-23 20:20:21,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2020-10-23 20:20:21,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-10-23 20:20:22,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 566. [2020-10-23 20:20:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-10-23 20:20:22,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 620 transitions. [2020-10-23 20:20:22,115 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 620 transitions. Word has length 208 [2020-10-23 20:20:22,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:22,116 INFO L481 AbstractCegarLoop]: Abstraction has 566 states and 620 transitions. [2020-10-23 20:20:22,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:20:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 620 transitions. [2020-10-23 20:20:22,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-23 20:20:22,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:22,120 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:22,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:20:22,121 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:20:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:22,121 INFO L82 PathProgramCache]: Analyzing trace with hash 688870189, now seen corresponding path program 1 times [2020-10-23 20:20:22,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:22,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296759477] [2020-10-23 20:20:22,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:22,125 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,466 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:20:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:20:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:20:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:20:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:20:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-23 20:20:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-23 20:20:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:22,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:20:22,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296759477] [2020-10-23 20:20:22,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:22,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:20:22,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555916776] [2020-10-23 20:20:22,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:20:22,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:22,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:20:22,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:20:22,714 INFO L87 Difference]: Start difference. First operand 566 states and 620 transitions. Second operand 10 states. [2020-10-23 20:20:24,257 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:24,645 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:25,049 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2020-10-23 20:20:25,421 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:25,799 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:26,161 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:27,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:27,111 INFO L93 Difference]: Finished difference Result 1118 states and 1285 transitions. [2020-10-23 20:20:27,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:20:27,112 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 231 [2020-10-23 20:20:27,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:27,116 INFO L225 Difference]: With dead ends: 1118 [2020-10-23 20:20:27,116 INFO L226 Difference]: Without dead ends: 672 [2020-10-23 20:20:27,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:20:27,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-10-23 20:20:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 582. [2020-10-23 20:20:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-10-23 20:20:27,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 636 transitions. [2020-10-23 20:20:27,321 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 636 transitions. Word has length 231 [2020-10-23 20:20:27,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:27,321 INFO L481 AbstractCegarLoop]: Abstraction has 582 states and 636 transitions. [2020-10-23 20:20:27,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:20:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 636 transitions. [2020-10-23 20:20:27,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-23 20:20:27,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:27,325 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:27,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:20:27,325 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:20:27,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:27,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1921988915, now seen corresponding path program 1 times [2020-10-23 20:20:27,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:27,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126014534] [2020-10-23 20:20:27,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:27,330 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,733 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:20:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:20:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:20:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:20:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:20:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-23 20:20:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:27,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-23 20:20:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:20:28,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126014534] [2020-10-23 20:20:28,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:28,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 20:20:28,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876919293] [2020-10-23 20:20:28,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 20:20:28,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:28,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 20:20:28,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:20:28,004 INFO L87 Difference]: Start difference. First operand 582 states and 636 transitions. Second operand 13 states. [2020-10-23 20:20:28,738 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:29,123 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 20:20:29,498 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:29,866 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:30,237 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:31,383 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:31,748 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:32,141 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:32,532 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:20:32,891 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:34,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:34,125 INFO L93 Difference]: Finished difference Result 1005 states and 1141 transitions. [2020-10-23 20:20:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:20:34,126 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 231 [2020-10-23 20:20:34,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:34,130 INFO L225 Difference]: With dead ends: 1005 [2020-10-23 20:20:34,131 INFO L226 Difference]: Without dead ends: 543 [2020-10-23 20:20:34,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 20:20:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-10-23 20:20:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 474. [2020-10-23 20:20:34,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-23 20:20:34,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 509 transitions. [2020-10-23 20:20:34,295 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 509 transitions. Word has length 231 [2020-10-23 20:20:34,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:34,296 INFO L481 AbstractCegarLoop]: Abstraction has 474 states and 509 transitions. [2020-10-23 20:20:34,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 20:20:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 509 transitions. [2020-10-23 20:20:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-23 20:20:34,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:34,298 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:34,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 20:20:34,299 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:20:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:34,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1065607419, now seen corresponding path program 1 times [2020-10-23 20:20:34,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:34,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136590369] [2020-10-23 20:20:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:34,314 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:20:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:34,865 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:20:34,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:34,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-23 20:20:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:34,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-23 20:20:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:34,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-23 20:20:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:34,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-23 20:20:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:34,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-23 20:20:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:34,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:20:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-23 20:20:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:20:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 20:20:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:20:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:20:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 20:20:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:20:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-23 20:20:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 20:20:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-10-23 20:20:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-23 20:20:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:20:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:20:35,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136590369] [2020-10-23 20:20:35,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:20:35,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:20:35,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829723992] [2020-10-23 20:20:35,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:20:35,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:20:35,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:20:35,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:20:35,195 INFO L87 Difference]: Start difference. First operand 474 states and 509 transitions. Second operand 14 states. [2020-10-23 20:20:36,198 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 207 [2020-10-23 20:20:37,251 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:39,053 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2020-10-23 20:20:39,784 WARN L193 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2020-10-23 20:20:40,252 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:40,636 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:41,362 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 210 [2020-10-23 20:20:41,758 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:42,173 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:20:42,571 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:43,799 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:20:44,162 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:20:44,558 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:20:45,328 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 207 [2020-10-23 20:20:46,509 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 209 [2020-10-23 20:20:47,239 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-10-23 20:20:48,038 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 210 [2020-10-23 20:20:48,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:20:48,709 INFO L93 Difference]: Finished difference Result 1262 states and 1425 transitions. [2020-10-23 20:20:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-23 20:20:48,710 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 236 [2020-10-23 20:20:48,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:20:48,717 INFO L225 Difference]: With dead ends: 1262 [2020-10-23 20:20:48,717 INFO L226 Difference]: Without dead ends: 1003 [2020-10-23 20:20:48,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=471, Invalid=1691, Unknown=0, NotChecked=0, Total=2162 [2020-10-23 20:20:48,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2020-10-23 20:20:49,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 905. [2020-10-23 20:20:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-23 20:20:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 977 transitions. [2020-10-23 20:20:49,246 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 977 transitions. Word has length 236 [2020-10-23 20:20:49,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:20:49,247 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 977 transitions. [2020-10-23 20:20:49,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:20:49,247 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 977 transitions. [2020-10-23 20:20:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-23 20:20:49,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:20:49,253 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:20:49,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 20:20:49,254 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:20:49,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:20:49,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1030198255, now seen corresponding path program 1 times [2020-10-23 20:20:49,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:20:49,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991525803] [2020-10-23 20:20:49,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:20:49,692 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2020-10-23 20:20:49,856 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 20:20:50,288 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 91 [2020-10-23 20:20:50,425 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-23 20:20:50,856 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2020-10-23 20:20:50,990 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-23 20:20:51,390 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2020-10-23 20:20:51,526 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 20:20:51,924 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2020-10-23 20:20:52,045 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-23 20:20:52,438 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2020-10-23 20:20:52,552 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 20:20:52,935 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 85 [2020-10-23 20:20:53,046 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 20:20:53,424 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2020-10-23 20:20:53,534 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-23 20:20:53,984 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2020-10-23 20:20:54,136 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 20:20:54,561 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2020-10-23 20:20:54,680 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-23 20:20:55,100 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2020-10-23 20:20:55,238 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-23 20:20:55,611 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 85 [2020-10-23 20:20:55,723 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 20:20:56,131 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 88 [2020-10-23 20:20:56,253 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-23 20:20:56,630 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 85 [2020-10-23 20:20:56,740 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-23 20:20:57,591 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:20:58,403 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:20:59,197 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:20:59,978 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:21:00,777 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:21:01,576 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:21:02,372 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:21:03,157 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:21:03,161 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:03,974 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:04,786 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:21:05,599 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:21:06,398 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:07,205 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:08,023 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:21:08,841 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:09,660 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2020-10-23 20:21:09,664 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:10,458 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:21:11,261 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:21:12,074 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:21:12,873 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 205 [2020-10-23 20:21:13,677 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:21:14,480 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:21:15,283 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:21:16,086 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 206 [2020-10-23 20:21:16,089 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:16,884 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:17,700 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:18,505 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:19,319 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:20,125 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:20,926 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:21,747 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:22,560 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:22,564 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:23,781 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2020-10-23 20:21:24,937 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2020-10-23 20:21:26,101 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2020-10-23 20:21:27,286 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 271 DAG size of output: 269 [2020-10-23 20:21:27,296 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:28,355 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:29,446 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:30,514 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:31,562 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:31,568 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:32,636 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:21:33,691 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:21:34,788 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:21:35,848 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2020-10-23 20:21:35,853 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:36,898 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:37,951 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:39,019 WARN L193 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:40,055 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 265 [2020-10-23 20:21:40,068 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:40,913 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:41,759 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:42,620 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:43,439 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:44,280 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:45,109 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:45,939 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:46,781 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2020-10-23 20:21:46,785 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:47,900 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 275 DAG size of output: 273 [2020-10-23 20:21:49,046 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 275 DAG size of output: 273 [2020-10-23 20:21:50,173 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 273 [2020-10-23 20:21:51,331 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 275 DAG size of output: 273 [2020-10-23 20:21:51,337 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:52,172 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:53,022 WARN L193 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:53,858 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:54,702 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:55,539 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:56,375 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:57,225 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:58,062 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 210 [2020-10-23 20:21:58,066 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:21:59,153 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:22:00,243 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:22:01,318 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:22:02,380 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 272 [2020-10-23 20:22:02,391 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:03,479 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:22:04,597 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:22:05,717 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:22:06,853 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 276 DAG size of output: 274 [2020-10-23 20:22:06,862 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:07,952 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:22:09,051 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:22:10,125 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:22:11,241 WARN L193 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 273 [2020-10-23 20:22:11,247 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:22:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:22:11,684 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:22:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:22:12,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:22:12,264 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:22:12,264 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:22:12,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 20:22:12,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:22:12 BoogieIcfgContainer [2020-10-23 20:22:12,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:22:12,314 INFO L168 Benchmark]: Toolchain (without parser) took 141464.27 ms. Allocated memory was 151.0 MB in the beginning and 588.3 MB in the end (delta: 437.3 MB). Free memory was 126.7 MB in the beginning and 238.9 MB in the end (delta: -112.2 MB). Peak memory consumption was 326.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:22:12,315 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:22:12,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.43 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:22:12,315 INFO L168 Benchmark]: Boogie Preprocessor took 99.93 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 101.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:22:12,316 INFO L168 Benchmark]: RCFGBuilder took 1654.59 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 100.8 MB in the beginning and 167.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 55.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:22:12,317 INFO L168 Benchmark]: TraceAbstraction took 139117.91 ms. Allocated memory was 195.0 MB in the beginning and 588.3 MB in the end (delta: 393.2 MB). Free memory was 167.4 MB in the beginning and 238.9 MB in the end (delta: -71.5 MB). Peak memory consumption was 321.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:22:12,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 574.43 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 99.93 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 101.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1654.59 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 100.8 MB in the beginning and 167.9 MB in the end (delta: -67.1 MB). Peak memory consumption was 55.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 139117.91 ms. Allocated memory was 195.0 MB in the beginning and 588.3 MB in the end (delta: 393.2 MB). Free memory was 167.4 MB in the beginning and 238.9 MB in the end (delta: -71.5 MB). Peak memory consumption was 321.2 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: [L45] int switchedOnBeforeTS ; [L100] int waterLevel = 1; [L101] int methaneLevelCritical = 0; [L194] int cleanupTimeShifts = 4; [L299] int pumpRunning = 0; [L300] int systemActive = 1; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L274] int retValue_acc ; [L275] int tmp ; [L279] FCALL select_helpers() [L280] FCALL select_features() [L281] CALL, EXPR valid_product() [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L281] RET, EXPR valid_product() [L281] tmp = valid_product() [L283] COND TRUE \read(tmp) [L285] FCALL setup() [L286] CALL runTest() [L264] CALL __utac_acc__Specification5_spec__1() [L50] switchedOnBeforeTS = 0 [L264] RET __utac_acc__Specification5_spec__1() [L265] CALL test() [L473] int splverifierCounter ; [L474] int tmp ; [L475] int tmp___0 ; [L476] int tmp___1 ; [L477] int tmp___2 ; [L480] splverifierCounter = 0 [L482] COND TRUE 1 [L484] COND TRUE splverifierCounter < 4 [L490] tmp = __VERIFIER_nondet_int() [L492] COND TRUE \read(tmp) [L494] CALL waterRise() [L118] COND TRUE waterLevel < 2 [L119] waterLevel = waterLevel + 1 [L494] RET waterRise() [L500] tmp___0 = __VERIFIER_nondet_int() [L502] COND FALSE !(\read(tmp___0)) [L510] tmp___2 = __VERIFIER_nondet_int() [L512] COND TRUE \read(tmp___2) [L525] CALL timeShift() [L307] CALL __utac_acc__Specification5_spec__2() [L59] CALL, EXPR isPumpRunning() [L408] int retValue_acc ; [L411] retValue_acc = pumpRunning [L412] return (retValue_acc); [L59] RET, EXPR isPumpRunning() [L59] switchedOnBeforeTS = isPumpRunning() [L307] RET __utac_acc__Specification5_spec__2() [L309] COND FALSE !(\read(pumpRunning)) [L316] COND TRUE \read(systemActive) [L318] CALL processEnvironment() [L338] int tmp ; [L341] COND TRUE ! pumpRunning [L343] CALL, EXPR isHighWaterLevel() [L453] int retValue_acc ; [L454] int tmp ; [L455] int tmp___0 ; [L459] CALL, EXPR isHighWaterSensorDry() [L180] int retValue_acc ; [L183] COND FALSE !(waterLevel < 2) [L187] retValue_acc = 0 [L188] return (retValue_acc); [L459] RET, EXPR isHighWaterSensorDry() [L459] tmp = isHighWaterSensorDry() [L461] COND FALSE !(\read(tmp)) [L464] tmp___0 = 1 [L466] retValue_acc = tmp___0 [L467] return (retValue_acc); [L343] RET, EXPR isHighWaterLevel() [L343] tmp = isHighWaterLevel() [L345] COND TRUE \read(tmp) [L347] CALL activatePump() [L372] int tmp ; [L376] CALL, EXPR isMethaneAlarm() [L397] int retValue_acc ; [L401] CALL, EXPR isMethaneLevelCritical() [L139] int retValue_acc ; [L142] retValue_acc = methaneLevelCritical [L143] return (retValue_acc); [L401] RET, EXPR isMethaneLevelCritical() [L401] retValue_acc = isMethaneLevelCritical() [L403] return (retValue_acc); [L376] RET, EXPR isMethaneAlarm() [L376] tmp = isMethaneAlarm() [L378] COND FALSE !(\read(tmp)) [L382] CALL activatePump__wrappee__highWaterSensor() [L366] pumpRunning = 1 [L382] RET activatePump__wrappee__highWaterSensor() [L347] RET activatePump() [L318] RET processEnvironment() [L324] CALL __utac_acc__Specification5_spec__3() [L65] int tmp ; [L66] int tmp___0 ; [L70] CALL, EXPR getWaterLevel() [L171] int retValue_acc ; [L174] retValue_acc = waterLevel [L175] return (retValue_acc); [L70] RET, EXPR getWaterLevel() [L70] tmp = getWaterLevel() [L72] COND FALSE !(tmp != 2) [L324] RET __utac_acc__Specification5_spec__3() [L525] RET timeShift() [L482] COND TRUE 1 [L484] COND TRUE splverifierCounter < 4 [L490] tmp = __VERIFIER_nondet_int() [L492] COND FALSE !(\read(tmp)) [L500] tmp___0 = __VERIFIER_nondet_int() [L502] COND FALSE !(\read(tmp___0)) [L510] tmp___2 = __VERIFIER_nondet_int() [L512] COND TRUE \read(tmp___2) [L525] CALL timeShift() [L307] CALL __utac_acc__Specification5_spec__2() [L59] CALL, EXPR isPumpRunning() [L408] int retValue_acc ; [L411] retValue_acc = pumpRunning [L412] return (retValue_acc); [L59] RET, EXPR isPumpRunning() [L59] switchedOnBeforeTS = isPumpRunning() [L307] RET __utac_acc__Specification5_spec__2() [L309] COND TRUE \read(pumpRunning) [L311] CALL lowerWaterLevel() [L106] COND TRUE waterLevel > 0 [L107] waterLevel = waterLevel - 1 [L311] RET lowerWaterLevel() [L316] COND TRUE \read(systemActive) [L318] CALL processEnvironment() [L338] int tmp ; [L341] COND FALSE !(! pumpRunning) [L356] FCALL processEnvironment__wrappee__base() [L318] RET processEnvironment() [L324] CALL __utac_acc__Specification5_spec__3() [L65] int tmp ; [L66] int tmp___0 ; [L70] CALL, EXPR getWaterLevel() [L171] int retValue_acc ; [L174] retValue_acc = waterLevel [L175] return (retValue_acc); [L70] RET, EXPR getWaterLevel() [L70] tmp = getWaterLevel() [L72] COND TRUE tmp != 2 [L74] CALL, EXPR isPumpRunning() [L408] int retValue_acc ; [L411] retValue_acc = pumpRunning [L412] return (retValue_acc); [L74] RET, EXPR isPumpRunning() [L74] tmp___0 = isPumpRunning() [L76] COND TRUE \read(tmp___0) [L77] COND TRUE ! switchedOnBeforeTS [L79] CALL __automaton_fail() [L942] CALL reach_error() [L3] __assert_fail("0", "minepump_spec5_product41.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 641 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 138.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 47.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2297 SDtfs, 6082 SDslu, 5117 SDs, 0 SdLazy, 9032 SolverSat, 1791 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 280 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 27.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=905occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 654 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...