/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_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:44:20,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:44:20,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:44:20,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:44:20,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:44:20,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:44:20,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:44:20,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:44:20,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:44:20,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:44:20,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:44:20,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:44:20,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:44:20,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:44:20,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:44:20,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:44:20,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:44:20,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:44:20,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:44:20,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:44:20,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:44:20,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:44:20,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:44:20,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:44:20,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:44:20,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:44:20,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:44:20,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:44:20,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:44:20,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:44:20,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:44:20,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:44:20,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:44:20,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:44:20,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:44:20,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:44:20,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:44:20,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:44:20,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:44:20,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:44:20,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:44:20,900 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 23:44:20,922 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:44:20,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:44:20,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:44:20,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 23:44:20,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:44:20,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 23:44:20,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:44:20,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:44:20,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:44:20,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:44:20,928 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 23:44:20,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:44:20,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:44:20,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:44:20,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:44:20,930 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:44:20,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:44:20,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:44:20,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:44:20,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:44:20,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:44:20,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:44:20,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-23 23:44:21,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:44:21,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:44:21,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:44:21,438 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:44:21,439 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:44:21,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-10-23 23:44:21,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2748e91e8/fd38f38648354a1a9c02737e66c2b6a7/FLAG2225e19fd [2020-10-23 23:44:22,271 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:44:22,272 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product51.cil.c [2020-10-23 23:44:22,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2748e91e8/fd38f38648354a1a9c02737e66c2b6a7/FLAG2225e19fd [2020-10-23 23:44:22,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2748e91e8/fd38f38648354a1a9c02737e66c2b6a7 [2020-10-23 23:44:22,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:44:22,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:44:22,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:44:22,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:44:22,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:44:22,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:44:22" (1/1) ... [2020-10-23 23:44:22,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60827b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:22, skipping insertion in model container [2020-10-23 23:44:22,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:44:22" (1/1) ... [2020-10-23 23:44:22,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:44:22,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:44:22,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:44:22,962 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:44:23,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:44:23,098 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:44:23,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23 WrapperNode [2020-10-23 23:44:23,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:44:23,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:44:23,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:44:23,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:44:23,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (1/1) ... [2020-10-23 23:44:23,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (1/1) ... [2020-10-23 23:44:23,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (1/1) ... [2020-10-23 23:44:23,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (1/1) ... [2020-10-23 23:44:23,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (1/1) ... [2020-10-23 23:44:23,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (1/1) ... [2020-10-23 23:44:23,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (1/1) ... [2020-10-23 23:44:23,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:44:23,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:44:23,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:44:23,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:44:23,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (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 23:44:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:44:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:44:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 23:44:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:44:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 23:44:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 23:44:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 23:44:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:44:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 23:44:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 23:44:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 23:44:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 23:44:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 23:44:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 23:44:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 23:44:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 23:44:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 23:44:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 23:44:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 23:44:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 23:44:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 23:44:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 23:44:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 23:44:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 23:44:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 23:44:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 23:44:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 23:44:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 23:44:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:44:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 23:44:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 23:44:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 23:44:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 23:44:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:44:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 23:44:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 23:44:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 23:44:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 23:44:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 23:44:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 23:44:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 23:44:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 23:44:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:44:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:44:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:44:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:44:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:44:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 23:44:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 23:44:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 23:44:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 23:44:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 23:44:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 23:44:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 23:44:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 23:44:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 23:44:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:44:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:44:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 23:44:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:44:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:44:23,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 23:44:23,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 23:44:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 23:44:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 23:44:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 23:44:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 23:44:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 23:44:23,373 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 23:44:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 23:44:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 23:44:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 23:44:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:44:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 23:44:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:44:23,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:44:23,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:44:24,675 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:44:24,679 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 23:44:24,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:44:24 BoogieIcfgContainer [2020-10-23 23:44:24,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:44:24,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:44:24,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:44:24,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:44:24,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:44:22" (1/3) ... [2020-10-23 23:44:24,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25411e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:44:24, skipping insertion in model container [2020-10-23 23:44:24,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:44:23" (2/3) ... [2020-10-23 23:44:24,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25411e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:44:24, skipping insertion in model container [2020-10-23 23:44:24,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:44:24" (3/3) ... [2020-10-23 23:44:24,698 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2020-10-23 23:44:24,711 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:44:24,718 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 23:44:24,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 23:44:24,773 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:44:24,774 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:44:24,774 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-23 23:44:24,774 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:44:24,775 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:44:24,775 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:44:24,776 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:44:24,776 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:44:24,812 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states. [2020-10-23 23:44:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 23:44:24,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:24,855 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 23:44:24,856 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 23:44:24,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:24,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1393592031, now seen corresponding path program 1 times [2020-10-23 23:44:24,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:24,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464992276] [2020-10-23 23:44:24,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,682 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:25,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:44:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:25,970 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 23:44:25,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464992276] [2020-10-23 23:44:25,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:25,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 23:44:25,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561878201] [2020-10-23 23:44:25,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 23:44:25,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:25,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 23:44:25,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:44:25,997 INFO L87 Difference]: Start difference. First operand 333 states. Second operand 3 states. [2020-10-23 23:44:27,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:27,798 INFO L93 Difference]: Finished difference Result 513 states and 610 transitions. [2020-10-23 23:44:27,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 23:44:27,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 23:44:27,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:27,830 INFO L225 Difference]: With dead ends: 513 [2020-10-23 23:44:27,830 INFO L226 Difference]: Without dead ends: 316 [2020-10-23 23:44:27,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 23:44:27,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-10-23 23:44:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 273. [2020-10-23 23:44:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-10-23 23:44:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2020-10-23 23:44:28,080 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 148 [2020-10-23 23:44:28,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:28,081 INFO L481 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2020-10-23 23:44:28,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 23:44:28,082 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2020-10-23 23:44:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 23:44:28,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:28,086 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 23:44:28,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:44:28,087 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 23:44:28,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:28,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1630788523, now seen corresponding path program 1 times [2020-10-23 23:44:28,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:28,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070162502] [2020-10-23 23:44:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,682 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:28,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 23:44:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 23:44:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:28,831 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 23:44:28,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070162502] [2020-10-23 23:44:28,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:28,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 23:44:28,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524897484] [2020-10-23 23:44:28,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 23:44:28,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:28,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 23:44:28,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 23:44:28,835 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand 4 states. [2020-10-23 23:44:29,685 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:30,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:30,928 INFO L93 Difference]: Finished difference Result 421 states and 473 transitions. [2020-10-23 23:44:30,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 23:44:30,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 23:44:30,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:30,935 INFO L225 Difference]: With dead ends: 421 [2020-10-23 23:44:30,935 INFO L226 Difference]: Without dead ends: 299 [2020-10-23 23:44:30,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 23:44:30,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-10-23 23:44:31,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 263. [2020-10-23 23:44:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-23 23:44:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 284 transitions. [2020-10-23 23:44:31,048 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 284 transitions. Word has length 149 [2020-10-23 23:44:31,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:31,049 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 284 transitions. [2020-10-23 23:44:31,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 23:44:31,049 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 284 transitions. [2020-10-23 23:44:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-23 23:44:31,051 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:31,052 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 23:44:31,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 23:44:31,052 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 23:44:31,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:31,053 INFO L82 PathProgramCache]: Analyzing trace with hash 886122188, now seen corresponding path program 1 times [2020-10-23 23:44:31,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:31,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570420994] [2020-10-23 23:44:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,609 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:31,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 23:44:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 23:44:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:31,787 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 23:44:31,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570420994] [2020-10-23 23:44:31,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:31,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:44:31,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161308777] [2020-10-23 23:44:31,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:44:31,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:31,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:44:31,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:44:31,791 INFO L87 Difference]: Start difference. First operand 263 states and 284 transitions. Second operand 9 states. [2020-10-23 23:44:32,541 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:33,009 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:44:33,409 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:44:33,808 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:34,197 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:34,574 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:35,747 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:38,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:38,463 INFO L93 Difference]: Finished difference Result 691 states and 794 transitions. [2020-10-23 23:44:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:44:38,464 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-10-23 23:44:38,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:38,469 INFO L225 Difference]: With dead ends: 691 [2020-10-23 23:44:38,469 INFO L226 Difference]: Without dead ends: 543 [2020-10-23 23:44:38,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:44:38,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-10-23 23:44:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 474. [2020-10-23 23:44:38,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-23 23:44:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 530 transitions. [2020-10-23 23:44:38,687 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 530 transitions. Word has length 158 [2020-10-23 23:44:38,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:38,688 INFO L481 AbstractCegarLoop]: Abstraction has 474 states and 530 transitions. [2020-10-23 23:44:38,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:44:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 530 transitions. [2020-10-23 23:44:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-23 23:44:38,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:38,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:38,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 23:44:38,692 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 23:44:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:38,693 INFO L82 PathProgramCache]: Analyzing trace with hash -799517655, now seen corresponding path program 1 times [2020-10-23 23:44:38,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:38,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951305133] [2020-10-23 23:44:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,158 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:39,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 23:44:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 23:44:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 23:44:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:39,349 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 23:44:39,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951305133] [2020-10-23 23:44:39,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:39,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 23:44:39,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463185833] [2020-10-23 23:44:39,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 23:44:39,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:39,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 23:44:39,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 23:44:39,353 INFO L87 Difference]: Start difference. First operand 474 states and 530 transitions. Second operand 9 states. [2020-10-23 23:44:39,986 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:41,878 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:42,310 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:42,820 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:43,265 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:43,646 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:44,019 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:44,424 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:45,151 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:46,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:46,567 INFO L93 Difference]: Finished difference Result 1306 states and 1561 transitions. [2020-10-23 23:44:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-23 23:44:46,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 167 [2020-10-23 23:44:46,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:46,575 INFO L225 Difference]: With dead ends: 1306 [2020-10-23 23:44:46,576 INFO L226 Difference]: Without dead ends: 947 [2020-10-23 23:44:46,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-23 23:44:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2020-10-23 23:44:46,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 793. [2020-10-23 23:44:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2020-10-23 23:44:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 900 transitions. [2020-10-23 23:44:46,906 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 900 transitions. Word has length 167 [2020-10-23 23:44:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:46,907 INFO L481 AbstractCegarLoop]: Abstraction has 793 states and 900 transitions. [2020-10-23 23:44:46,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 23:44:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 900 transitions. [2020-10-23 23:44:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-23 23:44:46,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:46,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:44:46,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 23:44:46,912 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 23:44:46,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:46,913 INFO L82 PathProgramCache]: Analyzing trace with hash 541816732, now seen corresponding path program 1 times [2020-10-23 23:44:46,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:46,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926965511] [2020-10-23 23:44:46,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,466 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:47,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-23 23:44:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 23:44:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 23:44:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:47,713 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 23:44:47,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926965511] [2020-10-23 23:44:47,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:47,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:44:47,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829685754] [2020-10-23 23:44:47,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:44:47,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:47,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:44:47,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:44:47,716 INFO L87 Difference]: Start difference. First operand 793 states and 900 transitions. Second operand 10 states. [2020-10-23 23:44:48,435 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:50,144 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:50,613 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:51,082 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:51,535 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 23:44:51,952 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:52,854 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:44:53,276 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:53,870 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:44:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:44:55,534 INFO L93 Difference]: Finished difference Result 2035 states and 2504 transitions. [2020-10-23 23:44:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 23:44:55,535 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-10-23 23:44:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:44:55,546 INFO L225 Difference]: With dead ends: 2035 [2020-10-23 23:44:55,546 INFO L226 Difference]: Without dead ends: 1357 [2020-10-23 23:44:55,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-10-23 23:44:55,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2020-10-23 23:44:56,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1095. [2020-10-23 23:44:56,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2020-10-23 23:44:56,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1263 transitions. [2020-10-23 23:44:56,091 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1263 transitions. Word has length 172 [2020-10-23 23:44:56,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:44:56,092 INFO L481 AbstractCegarLoop]: Abstraction has 1095 states and 1263 transitions. [2020-10-23 23:44:56,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:44:56,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1263 transitions. [2020-10-23 23:44:56,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:44:56,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:44:56,096 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 23:44:56,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 23:44:56,097 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 23:44:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:44:56,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1679444909, now seen corresponding path program 1 times [2020-10-23 23:44:56,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:44:56,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55473524] [2020-10-23 23:44:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:44:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,499 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:44:56,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:44:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:44:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:44:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:44:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:44:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:44:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:44:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:44:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:44:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:44:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:44:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 23:44:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:44:56,728 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 23:44:56,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55473524] [2020-10-23 23:44:56,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:44:56,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 23:44:56,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283119435] [2020-10-23 23:44:56,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 23:44:56,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:44:56,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 23:44:56,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 23:44:56,732 INFO L87 Difference]: Start difference. First operand 1095 states and 1263 transitions. Second operand 10 states. [2020-10-23 23:44:58,481 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:44:58,904 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:44:59,387 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-10-23 23:44:59,858 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:00,321 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:00,710 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:02,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:02,493 INFO L93 Difference]: Finished difference Result 2479 states and 3033 transitions. [2020-10-23 23:45:02,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 23:45:02,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-10-23 23:45:02,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:02,504 INFO L225 Difference]: With dead ends: 2479 [2020-10-23 23:45:02,504 INFO L226 Difference]: Without dead ends: 1499 [2020-10-23 23:45:02,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-10-23 23:45:02,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2020-10-23 23:45:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1133. [2020-10-23 23:45:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-10-23 23:45:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1303 transitions. [2020-10-23 23:45:02,972 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1303 transitions. Word has length 201 [2020-10-23 23:45:02,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:02,973 INFO L481 AbstractCegarLoop]: Abstraction has 1133 states and 1303 transitions. [2020-10-23 23:45:02,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 23:45:02,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1303 transitions. [2020-10-23 23:45:02,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:45:02,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:02,977 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 23:45:02,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 23:45:02,978 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 23:45:02,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:02,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1804649293, now seen corresponding path program 1 times [2020-10-23 23:45:02,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:02,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341015308] [2020-10-23 23:45:02,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,386 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:03,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:45:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:45:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 23:45:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:03,650 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 23:45:03,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341015308] [2020-10-23 23:45:03,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:03,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 23:45:03,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168454943] [2020-10-23 23:45:03,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 23:45:03,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:03,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 23:45:03,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 23:45:03,653 INFO L87 Difference]: Start difference. First operand 1133 states and 1303 transitions. Second operand 13 states. [2020-10-23 23:45:04,457 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 23:45:04,858 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 23:45:05,261 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:05,657 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:06,035 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:07,190 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:07,609 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:08,067 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:08,537 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 23:45:08,925 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 23:45:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:11,055 INFO L93 Difference]: Finished difference Result 2561 states and 3172 transitions. [2020-10-23 23:45:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:45:11,055 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 201 [2020-10-23 23:45:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:11,066 INFO L225 Difference]: With dead ends: 2561 [2020-10-23 23:45:11,066 INFO L226 Difference]: Without dead ends: 1543 [2020-10-23 23:45:11,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-10-23 23:45:11,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2020-10-23 23:45:11,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1157. [2020-10-23 23:45:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2020-10-23 23:45:11,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1327 transitions. [2020-10-23 23:45:11,597 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1327 transitions. Word has length 201 [2020-10-23 23:45:11,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:11,598 INFO L481 AbstractCegarLoop]: Abstraction has 1157 states and 1327 transitions. [2020-10-23 23:45:11,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 23:45:11,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1327 transitions. [2020-10-23 23:45:11,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-23 23:45:11,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:11,603 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 23:45:11,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 23:45:11,603 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 23:45:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:11,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1114155152, now seen corresponding path program 1 times [2020-10-23 23:45:11,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:11,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788580081] [2020-10-23 23:45:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:11,987 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 23:45:11,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:45:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 23:45:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 23:45:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 23:45:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 23:45:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 23:45:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 23:45:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 23:45:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 23:45:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-23 23:45:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-23 23:45:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-10-23 23:45:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:45:12,207 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 23:45:12,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788580081] [2020-10-23 23:45:12,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:45:12,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 23:45:12,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522967700] [2020-10-23 23:45:12,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 23:45:12,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:45:12,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 23:45:12,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-23 23:45:12,210 INFO L87 Difference]: Start difference. First operand 1157 states and 1327 transitions. Second operand 7 states. [2020-10-23 23:45:12,889 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:13,646 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 23:45:17,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:45:17,945 INFO L93 Difference]: Finished difference Result 3860 states and 4807 transitions. [2020-10-23 23:45:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 23:45:17,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2020-10-23 23:45:17,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:45:17,962 INFO L225 Difference]: With dead ends: 3860 [2020-10-23 23:45:17,963 INFO L226 Difference]: Without dead ends: 2818 [2020-10-23 23:45:17,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-10-23 23:45:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2020-10-23 23:45:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2313. [2020-10-23 23:45:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2020-10-23 23:45:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2683 transitions. [2020-10-23 23:45:19,252 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2683 transitions. Word has length 201 [2020-10-23 23:45:19,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:45:19,253 INFO L481 AbstractCegarLoop]: Abstraction has 2313 states and 2683 transitions. [2020-10-23 23:45:19,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 23:45:19,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2683 transitions. [2020-10-23 23:45:19,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-23 23:45:19,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:45:19,260 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 23:45:19,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-23 23:45:19,263 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 23:45:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:45:19,264 INFO L82 PathProgramCache]: Analyzing trace with hash -2141597272, now seen corresponding path program 1 times [2020-10-23 23:45:19,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:45:19,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448184805] [2020-10-23 23:45:19,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:45:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:45:19,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:45:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 23:45:19,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 23:45:19,734 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 23:45:19,735 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 23:45:19,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 23:45:20,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 11:45:20 BoogieIcfgContainer [2020-10-23 23:45:20,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 23:45:20,026 INFO L168 Benchmark]: Toolchain (without parser) took 57527.38 ms. Allocated memory was 158.3 MB in the beginning and 886.0 MB in the end (delta: 727.7 MB). Free memory was 134.3 MB in the beginning and 761.4 MB in the end (delta: -627.1 MB). Peak memory consumption was 532.6 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:20,026 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 133.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:45:20,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.29 ms. Allocated memory is still 158.3 MB. Free memory was 133.7 MB in the beginning and 112.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:20,028 INFO L168 Benchmark]: Boogie Preprocessor took 161.16 ms. Allocated memory is still 158.3 MB. Free memory was 112.1 MB in the beginning and 139.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:20,029 INFO L168 Benchmark]: RCFGBuilder took 1420.56 ms. Allocated memory is still 158.3 MB. Free memory was 139.7 MB in the beginning and 116.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:20,030 INFO L168 Benchmark]: TraceAbstraction took 55339.94 ms. Allocated memory was 158.3 MB in the beginning and 886.0 MB in the end (delta: 727.7 MB). Free memory was 116.1 MB in the beginning and 761.4 MB in the end (delta: -645.3 MB). Peak memory consumption was 513.4 MB. Max. memory is 8.0 GB. [2020-10-23 23:45:20,033 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 133.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 591.29 ms. Allocated memory is still 158.3 MB. Free memory was 133.7 MB in the beginning and 112.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 161.16 ms. Allocated memory is still 158.3 MB. Free memory was 112.1 MB in the beginning and 139.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1420.56 ms. Allocated memory is still 158.3 MB. Free memory was 139.7 MB in the beginning and 116.7 MB in the end (delta: 23.0 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 55339.94 ms. Allocated memory was 158.3 MB in the beginning and 886.0 MB in the end (delta: 727.7 MB). Free memory was 116.1 MB in the beginning and 761.4 MB in the end (delta: -645.3 MB). Peak memory consumption was 513.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=152, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=181, head={182:172}, methaneLevelCritical=152, pumpRunning=0, systemActive=141, waterLevel=145] [L124] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=181, head={182:172}, methaneLevelCritical=152, pumpRunning=0, systemActive=1, waterLevel=145] [L505] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=172, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=181, head={0:0}, methaneLevelCritical=152, pumpRunning=0, systemActive=1, waterLevel=145] [L775] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=152, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=152, pumpRunning=0, systemActive=1, waterLevel=145] [L872] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=152, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=152, pumpRunning=0, systemActive=1, waterLevel=1] [L873] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=172, \old(methaneLevelCritical)=152, \old(pumpRunning)=142, \old(systemActive)=141, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L848] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L849] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L853] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L740] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L743] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L744] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L855] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L855] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L857] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L859] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L860] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L50] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L51] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L52] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L67] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L69] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L890] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L891] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L69] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L77] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L79] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L902] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L79] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L87] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L102] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L140] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L186] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L204] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L165] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L283] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L284] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L285] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L289] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L952] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L955] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L959] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L960] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L289] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L291] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L294] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L296] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L297] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L165] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L167] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L169] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L214] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L169] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L204] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L140] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L146] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L750] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L751] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L755] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L911] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L914] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L915] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L755] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L755] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L757] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L759] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L238] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L241] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L242] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L759] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L759] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L761] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L763] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L706] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product51.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 656 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 54.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 44.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2083 SDtfs, 3702 SDslu, 3883 SDs, 0 SdLazy, 8322 SolverSat, 1138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 299 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 20.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2313occurred 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: 3.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 1821 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 1603 NumberOfCodeBlocks, 1603 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1389 ConstructedInterpolants, 0 QuantifiedInterpolants, 631528 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...