/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:43:15,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:43:15,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:43:15,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:43:15,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:43:15,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:43:15,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:43:15,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:43:15,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:43:15,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:43:15,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:43:15,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:43:15,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:43:15,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:43:15,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:43:15,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:43:15,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:43:15,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:43:15,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:43:15,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:43:15,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:43:15,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:43:15,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:43:15,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:43:15,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:43:15,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:43:15,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:43:15,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:43:15,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:43:15,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:43:15,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:43:15,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:43:15,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:43:15,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:43:15,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:43:15,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:43:15,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:43:15,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:43:15,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:43:15,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:43:15,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:43:15,892 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 23:43:15,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:43:15,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:43:15,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:43:15,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:43:15,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:43:15,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:43:15,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:43:15,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:43:15,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:43:15,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:43:15,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:43:15,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:43:15,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:43:15,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:43:15,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:43:15,919 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:43:15,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:43:15,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:43:15,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:43:15,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:43:15,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:43:15,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:43:15,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:43:16,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:43:16,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:43:16,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:43:16,357 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:43:16,358 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:43:16,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-10-23 23:43:16,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044da32d7/6d6f40e4cb204abb929c067c0ee3802a/FLAGb1e5443ac [2020-10-23 23:43:17,231 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:43:17,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-10-23 23:43:17,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044da32d7/6d6f40e4cb204abb929c067c0ee3802a/FLAGb1e5443ac [2020-10-23 23:43:17,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/044da32d7/6d6f40e4cb204abb929c067c0ee3802a [2020-10-23 23:43:17,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:43:17,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:43:17,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:43:17,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:43:17,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:43:17,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:43:17" (1/1) ... [2020-10-23 23:43:17,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7968a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:17, skipping insertion in model container [2020-10-23 23:43:17,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:43:17" (1/1) ... [2020-10-23 23:43:17,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:43:17,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:43:17,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:43:17,983 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:43:18,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:43:18,162 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:43:18,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18 WrapperNode [2020-10-23 23:43:18,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:43:18,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:43:18,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:43:18,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:43:18,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (1/1) ... [2020-10-23 23:43:18,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (1/1) ... [2020-10-23 23:43:18,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (1/1) ... [2020-10-23 23:43:18,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (1/1) ... [2020-10-23 23:43:18,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (1/1) ... [2020-10-23 23:43:18,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (1/1) ... [2020-10-23 23:43:18,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (1/1) ... [2020-10-23 23:43:18,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:43:18,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:43:18,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:43:18,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:43:18,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (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 23:43:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:43:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:43:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:43:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:43:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:43:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:43:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:43:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:43:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:43:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:43:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:43:18,373 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:43:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:43:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:43:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:43:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:43:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:43:18,374 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:43:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:43:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:43:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:43:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:43:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:43:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:43:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:43:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:43:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:43:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:43:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:43:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:43:18,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:43:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:43:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:43:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:43:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:43:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:43:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:43:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:43:18,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:43:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:43:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:43:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:43:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:43:18,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:43:18,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:43:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:43:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:43:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:43:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:43:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:43:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:43:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:43:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:43:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:43:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:43:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:43:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:43:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:43:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:43:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:43:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:43:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:43:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:43:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:43:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:43:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:43:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:43:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:43:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:43:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:43:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:43:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:43:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:43:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:43:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:43:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:43:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:43:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:43:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:43:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:43:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:43:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:43:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:43:18,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:43:20,166 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:43:20,166 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:43:20,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:43:20 BoogieIcfgContainer [2020-10-23 23:43:20,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:43:20,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:43:20,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:43:20,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:43:20,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:43:17" (1/3) ... [2020-10-23 23:43:20,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f70ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:43:20, skipping insertion in model container [2020-10-23 23:43:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:43:18" (2/3) ... [2020-10-23 23:43:20,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23f70ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:43:20, skipping insertion in model container [2020-10-23 23:43:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:43:20" (3/3) ... [2020-10-23 23:43:20,182 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-10-23 23:43:20,195 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:43:20,201 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:43:20,215 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:43:20,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:43:20,251 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:43:20,251 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:43:20,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:43:20,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:43:20,252 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:43:20,252 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:43:20,253 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:43:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-10-23 23:43:20,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 23:43:20,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:20,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:20,327 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 23:43:20,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:20,344 INFO L82 PathProgramCache]: Analyzing trace with hash -66250541, now seen corresponding path program 1 times [2020-10-23 23:43:20,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:20,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481219739] [2020-10-23 23:43:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,348 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:21,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:43:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:43:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:21,579 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 23:43:21,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481219739] [2020-10-23 23:43:21,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:21,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:43:21,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278933081] [2020-10-23 23:43:21,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:43:21,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:21,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:43:21,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:43:21,606 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-10-23 23:43:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:24,140 INFO L93 Difference]: Finished difference Result 477 states and 569 transitions. [2020-10-23 23:43:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:43:24,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 23:43:24,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:24,177 INFO L225 Difference]: With dead ends: 477 [2020-10-23 23:43:24,177 INFO L226 Difference]: Without dead ends: 297 [2020-10-23 23:43:24,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:43:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-10-23 23:43:24,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 256. [2020-10-23 23:43:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-23 23:43:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 278 transitions. [2020-10-23 23:43:24,357 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 278 transitions. Word has length 148 [2020-10-23 23:43:24,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:24,358 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 278 transitions. [2020-10-23 23:43:24,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:43:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 278 transitions. [2020-10-23 23:43:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 23:43:24,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:24,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:24,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:43:24,363 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 23:43:24,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:24,364 INFO L82 PathProgramCache]: Analyzing trace with hash -479543084, now seen corresponding path program 1 times [2020-10-23 23:43:24,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:24,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894596569] [2020-10-23 23:43:24,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,167 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:25,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:43:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:43:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:25,265 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 23:43:25,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894596569] [2020-10-23 23:43:25,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:25,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:43:25,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25846846] [2020-10-23 23:43:25,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:43:25,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:25,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:43:25,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:43:25,270 INFO L87 Difference]: Start difference. First operand 256 states and 278 transitions. Second operand 4 states. [2020-10-23 23:43:26,604 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:28,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:28,394 INFO L93 Difference]: Finished difference Result 391 states and 440 transitions. [2020-10-23 23:43:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:43:28,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 23:43:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:28,406 INFO L225 Difference]: With dead ends: 391 [2020-10-23 23:43:28,406 INFO L226 Difference]: Without dead ends: 280 [2020-10-23 23:43:28,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:43:28,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-23 23:43:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 246. [2020-10-23 23:43:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-23 23:43:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 265 transitions. [2020-10-23 23:43:28,526 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 265 transitions. Word has length 149 [2020-10-23 23:43:28,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:28,527 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 265 transitions. [2020-10-23 23:43:28,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:43:28,527 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 265 transitions. [2020-10-23 23:43:28,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 23:43:28,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:28,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:28,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:43:28,531 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 23:43:28,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:28,531 INFO L82 PathProgramCache]: Analyzing trace with hash -695224173, now seen corresponding path program 1 times [2020-10-23 23:43:28,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:28,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583600701] [2020-10-23 23:43:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,330 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:29,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:43:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:43:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:29,545 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 23:43:29,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583600701] [2020-10-23 23:43:29,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:29,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:29,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707674496] [2020-10-23 23:43:29,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:29,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:29,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:29,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:29,550 INFO L87 Difference]: Start difference. First operand 246 states and 265 transitions. Second operand 9 states. [2020-10-23 23:43:30,659 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:31,487 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:43:32,211 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:32,963 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:33,673 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:34,425 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:36,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:36,996 INFO L93 Difference]: Finished difference Result 411 states and 465 transitions. [2020-10-23 23:43:36,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 23:43:36,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 23:43:36,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:37,001 INFO L225 Difference]: With dead ends: 411 [2020-10-23 23:43:37,001 INFO L226 Difference]: Without dead ends: 280 [2020-10-23 23:43:37,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 23:43:37,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-23 23:43:37,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 246. [2020-10-23 23:43:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-10-23 23:43:37,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 264 transitions. [2020-10-23 23:43:37,113 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 264 transitions. Word has length 158 [2020-10-23 23:43:37,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:37,113 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 264 transitions. [2020-10-23 23:43:37,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:37,114 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 264 transitions. [2020-10-23 23:43:37,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-23 23:43:37,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:37,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:37,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:43:37,117 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 23:43:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:37,118 INFO L82 PathProgramCache]: Analyzing trace with hash -604121053, now seen corresponding path program 1 times [2020-10-23 23:43:37,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:37,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498240456] [2020-10-23 23:43:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:37,902 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:37,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:37,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:37,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:37,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:37,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-23 23:43:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-23 23:43:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:38,082 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 23:43:38,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498240456] [2020-10-23 23:43:38,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:38,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:43:38,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660662741] [2020-10-23 23:43:38,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:43:38,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:38,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:43:38,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:43:38,086 INFO L87 Difference]: Start difference. First operand 246 states and 264 transitions. Second operand 6 states. [2020-10-23 23:43:39,116 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:41,740 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:43:43,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:43,065 INFO L93 Difference]: Finished difference Result 544 states and 622 transitions. [2020-10-23 23:43:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 23:43:43,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-10-23 23:43:43,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:43,075 INFO L225 Difference]: With dead ends: 544 [2020-10-23 23:43:43,076 INFO L226 Difference]: Without dead ends: 413 [2020-10-23 23:43:43,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 23:43:43,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-10-23 23:43:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 352. [2020-10-23 23:43:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-10-23 23:43:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 379 transitions. [2020-10-23 23:43:43,227 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 379 transitions. Word has length 171 [2020-10-23 23:43:43,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:43,227 INFO L481 AbstractCegarLoop]: Abstraction has 352 states and 379 transitions. [2020-10-23 23:43:43,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:43:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 379 transitions. [2020-10-23 23:43:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-23 23:43:43,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:43,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:43,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:43:43,231 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 23:43:43,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:43,232 INFO L82 PathProgramCache]: Analyzing trace with hash -708516420, now seen corresponding path program 1 times [2020-10-23 23:43:43,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:43,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428902146] [2020-10-23 23:43:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,900 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:43,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:44,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:44,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:44,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:43:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:44,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:43:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:44,177 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 23:43:44,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428902146] [2020-10-23 23:43:44,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:44,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:44,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533418925] [2020-10-23 23:43:44,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:44,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:44,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:44,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:44,181 INFO L87 Difference]: Start difference. First operand 352 states and 379 transitions. Second operand 9 states. [2020-10-23 23:43:45,213 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:47,098 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:47,806 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:48,497 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:49,181 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:49,948 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:43:50,621 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:53,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:43:53,604 INFO L93 Difference]: Finished difference Result 843 states and 985 transitions. [2020-10-23 23:43:53,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 23:43:53,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-10-23 23:43:53,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:43:53,611 INFO L225 Difference]: With dead ends: 843 [2020-10-23 23:43:53,612 INFO L226 Difference]: Without dead ends: 606 [2020-10-23 23:43:53,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:43:53,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-10-23 23:43:53,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 528. [2020-10-23 23:43:53,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-23 23:43:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 582 transitions. [2020-10-23 23:43:53,853 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 582 transitions. Word has length 195 [2020-10-23 23:43:53,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:43:53,854 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 582 transitions. [2020-10-23 23:43:53,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:43:53,854 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 582 transitions. [2020-10-23 23:43:53,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-23 23:43:53,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:43:53,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:43:53,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:43:53,859 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 23:43:53,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:43:53,860 INFO L82 PathProgramCache]: Analyzing trace with hash 931777561, now seen corresponding path program 1 times [2020-10-23 23:43:53,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:43:53,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891200765] [2020-10-23 23:43:53,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:43:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,563 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:43:54,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:43:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:43:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:43:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:43:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:43:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 23:43:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:43:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:43:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:43:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-23 23:43:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-23 23:43:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:43:54,738 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 23:43:54,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891200765] [2020-10-23 23:43:54,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:43:54,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:43:54,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491774286] [2020-10-23 23:43:54,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:43:54,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:43:54,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:43:54,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:43:54,742 INFO L87 Difference]: Start difference. First operand 528 states and 582 transitions. Second operand 9 states. [2020-10-23 23:43:55,739 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:43:58,518 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:43:59,194 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:43:59,964 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:00,636 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:01,295 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:01,951 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:02,593 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:03,443 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:05,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:05,681 INFO L93 Difference]: Finished difference Result 1407 states and 1648 transitions. [2020-10-23 23:44:05,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:44:05,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2020-10-23 23:44:05,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:05,692 INFO L225 Difference]: With dead ends: 1407 [2020-10-23 23:44:05,692 INFO L226 Difference]: Without dead ends: 994 [2020-10-23 23:44:05,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:44:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2020-10-23 23:44:06,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 879. [2020-10-23 23:44:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-23 23:44:06,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 978 transitions. [2020-10-23 23:44:06,212 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 978 transitions. Word has length 195 [2020-10-23 23:44:06,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:06,212 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 978 transitions. [2020-10-23 23:44:06,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:44:06,213 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 978 transitions. [2020-10-23 23:44:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-23 23:44:06,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:06,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:06,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:44:06,218 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 23:44:06,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:06,219 INFO L82 PathProgramCache]: Analyzing trace with hash -616231985, now seen corresponding path program 1 times [2020-10-23 23:44:06,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:06,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197340703] [2020-10-23 23:44:06,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:06,894 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:06,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:06,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:06,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:06,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:06,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:44:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-23 23:44:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-23 23:44:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:07,111 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 23:44:07,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197340703] [2020-10-23 23:44:07,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:07,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:44:07,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090751294] [2020-10-23 23:44:07,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:44:07,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:07,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:44:07,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:44:07,114 INFO L87 Difference]: Start difference. First operand 879 states and 978 transitions. Second operand 10 states. [2020-10-23 23:44:08,165 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:10,912 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:11,584 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:12,299 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:12,962 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:13,676 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:14,452 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:15,144 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:15,877 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:18,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:18,033 INFO L93 Difference]: Finished difference Result 1103 states and 1295 transitions. [2020-10-23 23:44:18,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:44:18,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-10-23 23:44:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:18,041 INFO L225 Difference]: With dead ends: 1103 [2020-10-23 23:44:18,041 INFO L226 Difference]: Without dead ends: 1099 [2020-10-23 23:44:18,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 23:44:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2020-10-23 23:44:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 879. [2020-10-23 23:44:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-23 23:44:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 976 transitions. [2020-10-23 23:44:18,422 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 976 transitions. Word has length 200 [2020-10-23 23:44:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:18,423 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 976 transitions. [2020-10-23 23:44:18,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:44:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 976 transitions. [2020-10-23 23:44:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:44:18,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:18,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:18,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:44:18,428 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 23:44:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:18,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1691615419, now seen corresponding path program 1 times [2020-10-23 23:44:18,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:18,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504134270] [2020-10-23 23:44:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,077 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:19,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:44:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:19,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:44:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 23:44:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:19,369 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 23:44:19,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504134270] [2020-10-23 23:44:19,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:19,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:44:19,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625315683] [2020-10-23 23:44:19,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:44:19,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:19,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:44:19,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:44:19,372 INFO L87 Difference]: Start difference. First operand 879 states and 976 transitions. Second operand 10 states. [2020-10-23 23:44:21,551 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:22,249 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:44:23,004 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:44:23,741 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:24,494 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:25,192 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:27,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:27,728 INFO L93 Difference]: Finished difference Result 1885 states and 2201 transitions. [2020-10-23 23:44:27,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:44:27,733 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-10-23 23:44:27,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:27,740 INFO L225 Difference]: With dead ends: 1885 [2020-10-23 23:44:27,741 INFO L226 Difference]: Without dead ends: 1121 [2020-10-23 23:44:27,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:44:27,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-10-23 23:44:28,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 911. [2020-10-23 23:44:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 911 states. [2020-10-23 23:44:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1008 transitions. [2020-10-23 23:44:28,111 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1008 transitions. Word has length 201 [2020-10-23 23:44:28,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:28,111 INFO L481 AbstractCegarLoop]: Abstraction has 911 states and 1008 transitions. [2020-10-23 23:44:28,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:44:28,111 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1008 transitions. [2020-10-23 23:44:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:44:28,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:28,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:28,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:44:28,116 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 23:44:28,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:28,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1566411035, now seen corresponding path program 1 times [2020-10-23 23:44:28,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:28,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455270951] [2020-10-23 23:44:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,855 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:28,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:44:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:29,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:29,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:44:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:29,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 23:44:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:29,145 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 23:44:29,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455270951] [2020-10-23 23:44:29,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:29,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 23:44:29,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374596616] [2020-10-23 23:44:29,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 23:44:29,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:29,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 23:44:29,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 23:44:29,148 INFO L87 Difference]: Start difference. First operand 911 states and 1008 transitions. Second operand 13 states. [2020-10-23 23:44:30,523 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:31,271 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:44:32,002 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:32,731 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:33,436 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:35,061 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:35,760 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:36,508 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:37,234 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:37,908 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:40,473 INFO L93 Difference]: Finished difference Result 1697 states and 1963 transitions. [2020-10-23 23:44:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:44:40,473 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2020-10-23 23:44:40,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:40,479 INFO L225 Difference]: With dead ends: 1697 [2020-10-23 23:44:40,479 INFO L226 Difference]: Without dead ends: 901 [2020-10-23 23:44:40,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 23:44:40,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-10-23 23:44:40,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 757. [2020-10-23 23:44:40,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2020-10-23 23:44:40,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 816 transitions. [2020-10-23 23:44:40,887 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 816 transitions. Word has length 201 [2020-10-23 23:44:40,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:40,888 INFO L481 AbstractCegarLoop]: Abstraction has 757 states and 816 transitions. [2020-10-23 23:44:40,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 23:44:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 816 transitions. [2020-10-23 23:44:40,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-23 23:44:40,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:40,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:40,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:44:40,892 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 23:44:40,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:40,892 INFO L82 PathProgramCache]: Analyzing trace with hash -980658218, now seen corresponding path program 1 times [2020-10-23 23:44:40,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:40,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561408758] [2020-10-23 23:44:40,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:44:40,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:44:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:44:41,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:44:41,276 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:44:41,276 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:44:41,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-23 23:44:41,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:44:41 BoogieIcfgContainer [2020-10-23 23:44:41,555 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:44:41,563 INFO L168 Benchmark]: Toolchain (without parser) took 84083.69 ms. Allocated memory was 156.2 MB in the beginning and 576.7 MB in the end (delta: 420.5 MB). Free memory was 130.9 MB in the beginning and 262.3 MB in the end (delta: -131.4 MB). Peak memory consumption was 290.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:41,564 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 156.2 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:44:41,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.13 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 109.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:41,566 INFO L168 Benchmark]: Boogie Preprocessor took 127.35 ms. Allocated memory is still 156.2 MB. Free memory was 109.5 MB in the beginning and 105.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:41,567 INFO L168 Benchmark]: RCFGBuilder took 1876.50 ms. Allocated memory was 156.2 MB in the beginning and 188.7 MB in the end (delta: 32.5 MB). Free memory was 105.6 MB in the beginning and 159.8 MB in the end (delta: -54.2 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:41,571 INFO L168 Benchmark]: TraceAbstraction took 81381.99 ms. Allocated memory was 188.7 MB in the beginning and 576.7 MB in the end (delta: 388.0 MB). Free memory was 159.3 MB in the beginning and 262.3 MB in the end (delta: -103.0 MB). Peak memory consumption was 285.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:44:41,580 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 156.2 MB. Free memory is still 130.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 680.13 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 109.5 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 127.35 ms. Allocated memory is still 156.2 MB. Free memory was 109.5 MB in the beginning and 105.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1876.50 ms. Allocated memory was 156.2 MB in the beginning and 188.7 MB in the end (delta: 32.5 MB). Free memory was 105.6 MB in the beginning and 159.8 MB in the end (delta: -54.2 MB). Peak memory consumption was 58.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 81381.99 ms. Allocated memory was 188.7 MB in the beginning and 576.7 MB in the end (delta: 388.0 MB). Free memory was 159.3 MB in the beginning and 262.3 MB in the end (delta: -103.0 MB). Peak memory consumption was 285.0 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=151, pumpRunning=141, systemActive=140, waterLevel=144] [L408] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=141, systemActive=140, waterLevel=144] [L590] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=140, waterLevel=144] [L591] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=144] [L834] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=167, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=167, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L490] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L495] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L496] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L576] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L579] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L580] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L496] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L496] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L498] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L500] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L501] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L480] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L769] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L770] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L771] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L772] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L778] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L780] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L786] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L788] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L790] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L790] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L796] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L798] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L800] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L864] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L867] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L800] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L806] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L808] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L821] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L604] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L606] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L652] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L655] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L626] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L631] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L749] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L750] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L751] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L755] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L914] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L917] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L921] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L922] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L755] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L755] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L757] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L760] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L762] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L763] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L631] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L631] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L633] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L635] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L680] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L635] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L670] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L606] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L612] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L516] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L517] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L521] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L873] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L876] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L877] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L521] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L521] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L523] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L525] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L704] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L707] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L708] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L525] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L525] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L527] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L529] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L545] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product37.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 631 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 81.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 69.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2124 SDtfs, 3315 SDslu, 4344 SDs, 0 SdLazy, 8035 SolverSat, 963 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 27.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 40.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 937 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 1824 NumberOfCodeBlocks, 1824 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1609 ConstructedInterpolants, 0 QuantifiedInterpolants, 742194 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...