/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_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 03:56:35,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 03:56:35,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 03:56:35,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 03:56:35,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 03:56:35,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 03:56:35,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 03:56:35,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 03:56:35,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 03:56:35,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 03:56:35,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 03:56:35,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 03:56:35,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 03:56:35,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 03:56:35,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 03:56:35,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 03:56:35,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 03:56:35,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 03:56:35,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 03:56:35,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 03:56:35,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 03:56:35,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 03:56:35,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 03:56:35,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 03:56:35,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 03:56:35,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 03:56:35,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 03:56:35,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 03:56:35,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 03:56:35,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 03:56:35,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 03:56:35,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 03:56:35,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 03:56:35,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 03:56:35,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 03:56:35,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 03:56:35,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 03:56:35,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 03:56:35,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 03:56:35,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 03:56:35,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 03:56:35,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 03:56:35,507 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 03:56:35,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 03:56:35,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 03:56:35,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 03:56:35,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 03:56:35,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 03:56:35,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 03:56:35,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 03:56:35,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 03:56:35,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 03:56:35,511 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 03:56:35,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 03:56:35,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 03:56:35,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 03:56:35,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 03:56:35,512 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 03:56:35,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 03:56:35,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 03:56:35,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 03:56:35,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 03:56:35,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 03:56:35,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 03:56:35,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 03:56:35,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 03:56:35,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 03:56:35,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 03:56:35,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 03:56:35,926 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 03:56:35,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-11-07 03:56:36,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15e5fead1/0bfb71e7eafd4f5a80f256b20be6eee2/FLAGa02b70c2a [2020-11-07 03:56:36,798 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 03:56:36,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-11-07 03:56:36,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15e5fead1/0bfb71e7eafd4f5a80f256b20be6eee2/FLAGa02b70c2a [2020-11-07 03:56:37,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15e5fead1/0bfb71e7eafd4f5a80f256b20be6eee2 [2020-11-07 03:56:37,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 03:56:37,085 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 03:56:37,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 03:56:37,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 03:56:37,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 03:56:37,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36caf985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37, skipping insertion in model container [2020-11-07 03:56:37,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 03:56:37,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 03:56:37,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:56:37,600 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 03:56:37,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 03:56:37,738 INFO L208 MainTranslator]: Completed translation [2020-11-07 03:56:37,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37 WrapperNode [2020-11-07 03:56:37,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 03:56:37,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 03:56:37,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 03:56:37,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 03:56:37,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (1/1) ... [2020-11-07 03:56:37,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 03:56:37,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 03:56:37,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 03:56:37,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 03:56:37,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (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 [2020-11-07 03:56:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 03:56:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 03:56:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 03:56:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 03:56:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:56:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 03:56:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 03:56:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 03:56:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 03:56:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 03:56:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 03:56:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 03:56:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 03:56:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 03:56:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 03:56:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 03:56:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 03:56:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 03:56:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 03:56:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 03:56:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 03:56:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 03:56:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 03:56:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 03:56:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 03:56:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 03:56:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 03:56:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 03:56:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 03:56:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 03:56:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 03:56:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 03:56:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 03:56:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 03:56:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 03:56:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 03:56:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 03:56:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 03:56:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 03:56:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 03:56:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 03:56:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 03:56:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 03:56:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 03:56:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 03:56:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 03:56:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 03:56:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 03:56:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 03:56:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 03:56:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 03:56:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-11-07 03:56:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 03:56:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 03:56:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 03:56:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 03:56:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 03:56:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 03:56:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 03:56:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 03:56:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 03:56:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 03:56:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 03:56:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 03:56:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 03:56:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 03:56:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 03:56:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 03:56:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 03:56:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 03:56:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 03:56:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 03:56:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 03:56:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 03:56:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 03:56:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 03:56:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 03:56:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 03:56:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 03:56:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 03:56:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 03:56:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 03:56:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 03:56:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 03:56:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 03:56:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 03:56:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 03:56:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 03:56:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 03:56:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-11-07 03:56:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 03:56:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-11-07 03:56:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 03:56:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 03:56:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 03:56:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 03:56:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 03:56:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 03:56:40,020 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 03:56:40,020 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 03:56:40,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:56:40 BoogieIcfgContainer [2020-11-07 03:56:40,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 03:56:40,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 03:56:40,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 03:56:40,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 03:56:40,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:56:37" (1/3) ... [2020-11-07 03:56:40,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60009c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:56:40, skipping insertion in model container [2020-11-07 03:56:40,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:56:37" (2/3) ... [2020-11-07 03:56:40,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60009c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:56:40, skipping insertion in model container [2020-11-07 03:56:40,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:56:40" (3/3) ... [2020-11-07 03:56:40,033 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-11-07 03:56:40,051 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 03:56:40,055 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 03:56:40,068 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 03:56:40,094 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 03:56:40,094 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 03:56:40,094 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 03:56:40,094 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 03:56:40,095 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 03:56:40,095 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 03:56:40,095 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 03:56:40,095 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 03:56:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-11-07 03:56:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-11-07 03:56:40,140 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:40,141 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] [2020-11-07 03:56:40,142 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]=== [2020-11-07 03:56:40,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:40,149 INFO L82 PathProgramCache]: Analyzing trace with hash 607492218, now seen corresponding path program 1 times [2020-11-07 03:56:40,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:40,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66009186] [2020-11-07 03:56:40,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,264 WARN L194 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:41,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:56:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:56:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:41,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:41,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66009186] [2020-11-07 03:56:41,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:41,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 03:56:41,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508497546] [2020-11-07 03:56:41,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 03:56:41,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:41,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 03:56:41,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:56:41,504 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 3 states. [2020-11-07 03:56:44,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:44,472 INFO L93 Difference]: Finished difference Result 541 states and 644 transitions. [2020-11-07 03:56:44,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 03:56:44,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-11-07 03:56:44,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:44,493 INFO L225 Difference]: With dead ends: 541 [2020-11-07 03:56:44,493 INFO L226 Difference]: Without dead ends: 330 [2020-11-07 03:56:44,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 03:56:44,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-07 03:56:44,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 287. [2020-11-07 03:56:44,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-11-07 03:56:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 314 transitions. [2020-11-07 03:56:44,710 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 314 transitions. Word has length 148 [2020-11-07 03:56:44,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:44,714 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 314 transitions. [2020-11-07 03:56:44,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 03:56:44,714 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 314 transitions. [2020-11-07 03:56:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-11-07 03:56:44,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:44,729 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] [2020-11-07 03:56:44,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 03:56:44,730 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]=== [2020-11-07 03:56:44,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:44,734 INFO L82 PathProgramCache]: Analyzing trace with hash -197497099, now seen corresponding path program 1 times [2020-11-07 03:56:44,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:44,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138408024] [2020-11-07 03:56:44,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,583 WARN L194 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:45,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 03:56:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 03:56:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:45,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138408024] [2020-11-07 03:56:45,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:45,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 03:56:45,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899054638] [2020-11-07 03:56:45,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 03:56:45,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:45,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 03:56:45,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 03:56:45,706 INFO L87 Difference]: Start difference. First operand 287 states and 314 transitions. Second operand 4 states. [2020-11-07 03:56:46,965 WARN L194 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:56:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:49,103 INFO L93 Difference]: Finished difference Result 455 states and 515 transitions. [2020-11-07 03:56:49,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 03:56:49,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-11-07 03:56:49,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:49,114 INFO L225 Difference]: With dead ends: 455 [2020-11-07 03:56:49,114 INFO L226 Difference]: Without dead ends: 313 [2020-11-07 03:56:49,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 03:56:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-11-07 03:56:49,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 277. [2020-11-07 03:56:49,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-11-07 03:56:49,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 301 transitions. [2020-11-07 03:56:49,235 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 301 transitions. Word has length 149 [2020-11-07 03:56:49,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:49,235 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 301 transitions. [2020-11-07 03:56:49,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 03:56:49,236 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 301 transitions. [2020-11-07 03:56:49,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-11-07 03:56:49,238 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:49,238 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] [2020-11-07 03:56:49,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 03:56:49,239 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]=== [2020-11-07 03:56:49,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:49,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1054263541, now seen corresponding path program 1 times [2020-11-07 03:56:49,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:49,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181442659] [2020-11-07 03:56:49,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,004 WARN L194 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:50,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-11-07 03:56:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 03:56:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:50,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181442659] [2020-11-07 03:56:50,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:50,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:56:50,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583586389] [2020-11-07 03:56:50,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:56:50,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:50,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:56:50,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:56:50,259 INFO L87 Difference]: Start difference. First operand 277 states and 301 transitions. Second operand 9 states. [2020-11-07 03:56:51,285 WARN L194 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:56:52,140 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:56:52,871 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:56:53,574 WARN L194 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:54,276 WARN L194 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:56:54,938 WARN L194 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:56:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:56:57,958 INFO L93 Difference]: Finished difference Result 475 states and 540 transitions. [2020-11-07 03:56:57,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 03:56:57,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-11-07 03:56:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:56:57,967 INFO L225 Difference]: With dead ends: 475 [2020-11-07 03:56:57,967 INFO L226 Difference]: Without dead ends: 313 [2020-11-07 03:56:57,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 03:56:57,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-11-07 03:56:58,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 277. [2020-11-07 03:56:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-11-07 03:56:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 300 transitions. [2020-11-07 03:56:58,090 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 300 transitions. Word has length 158 [2020-11-07 03:56:58,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:56:58,091 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 300 transitions. [2020-11-07 03:56:58,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:56:58,091 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 300 transitions. [2020-11-07 03:56:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-11-07 03:56:58,094 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:56:58,095 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] [2020-11-07 03:56:58,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 03:56:58,095 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]=== [2020-11-07 03:56:58,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:56:58,096 INFO L82 PathProgramCache]: Analyzing trace with hash -125686888, now seen corresponding path program 1 times [2020-11-07 03:56:58,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:56:58,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760980576] [2020-11-07 03:56:58,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:56:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,803 WARN L194 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:56:58,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:56:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:56:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:56:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:56:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:56:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:56:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:56:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 03:56:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-11-07 03:56:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:56:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:56:58,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760980576] [2020-11-07 03:56:58,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:56:58,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 03:56:58,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31316349] [2020-11-07 03:56:58,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 03:56:58,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:56:58,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 03:56:58,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-07 03:56:58,954 INFO L87 Difference]: Start difference. First operand 277 states and 300 transitions. Second operand 6 states. [2020-11-07 03:57:00,007 WARN L194 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:02,591 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:04,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:57:04,034 INFO L93 Difference]: Finished difference Result 614 states and 704 transitions. [2020-11-07 03:57:04,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 03:57:04,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2020-11-07 03:57:04,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:57:04,040 INFO L225 Difference]: With dead ends: 614 [2020-11-07 03:57:04,040 INFO L226 Difference]: Without dead ends: 452 [2020-11-07 03:57:04,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-07 03:57:04,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-11-07 03:57:04,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 391. [2020-11-07 03:57:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-11-07 03:57:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 421 transitions. [2020-11-07 03:57:04,217 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 421 transitions. Word has length 176 [2020-11-07 03:57:04,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:57:04,217 INFO L481 AbstractCegarLoop]: Abstraction has 391 states and 421 transitions. [2020-11-07 03:57:04,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 03:57:04,218 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 421 transitions. [2020-11-07 03:57:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-11-07 03:57:04,221 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:57:04,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:57:04,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 03:57:04,222 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]=== [2020-11-07 03:57:04,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:57:04,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1735889120, now seen corresponding path program 1 times [2020-11-07 03:57:04,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:57:04,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017286137] [2020-11-07 03:57:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:57:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,890 WARN L194 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:57:04,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:57:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:57:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:57:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:57:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:57:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 03:57:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:57:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:04,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:57:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:05,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 03:57:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:05,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-07 03:57:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:57:05,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017286137] [2020-11-07 03:57:05,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:57:05,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 03:57:05,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321699478] [2020-11-07 03:57:05,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 03:57:05,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:57:05,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 03:57:05,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 03:57:05,134 INFO L87 Difference]: Start difference. First operand 391 states and 421 transitions. Second operand 9 states. [2020-11-07 03:57:06,159 WARN L194 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:09,197 WARN L194 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:09,866 WARN L194 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:57:10,572 WARN L194 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:11,220 WARN L194 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:11,937 WARN L194 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:57:12,642 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:13,334 WARN L194 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:14,226 WARN L194 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:57:17,046 INFO L93 Difference]: Finished difference Result 996 states and 1141 transitions. [2020-11-07 03:57:17,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 03:57:17,048 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-11-07 03:57:17,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:57:17,053 INFO L225 Difference]: With dead ends: 996 [2020-11-07 03:57:17,054 INFO L226 Difference]: Without dead ends: 720 [2020-11-07 03:57:17,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-07 03:57:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-11-07 03:57:17,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 629. [2020-11-07 03:57:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-11-07 03:57:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 684 transitions. [2020-11-07 03:57:17,402 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 684 transitions. Word has length 200 [2020-11-07 03:57:17,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:57:17,403 INFO L481 AbstractCegarLoop]: Abstraction has 629 states and 684 transitions. [2020-11-07 03:57:17,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 03:57:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 684 transitions. [2020-11-07 03:57:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-11-07 03:57:17,407 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:57:17,407 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] [2020-11-07 03:57:17,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 03:57:17,408 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]=== [2020-11-07 03:57:17,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:57:17,409 INFO L82 PathProgramCache]: Analyzing trace with hash -109531929, now seen corresponding path program 1 times [2020-11-07 03:57:17,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:57:17,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508595615] [2020-11-07 03:57:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:57:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,109 WARN L194 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:57:18,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:57:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:57:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:57:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:57:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:57:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:57:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:57:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:57:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:57:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-11-07 03:57:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 03:57:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:57:18,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508595615] [2020-11-07 03:57:18,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:57:18,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:57:18,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317811697] [2020-11-07 03:57:18,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:57:18,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:57:18,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:57:18,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:57:18,370 INFO L87 Difference]: Start difference. First operand 629 states and 684 transitions. Second operand 10 states. [2020-11-07 03:57:19,414 WARN L194 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:22,188 WARN L194 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:22,824 WARN L194 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:23,570 WARN L194 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:57:24,274 WARN L194 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:24,998 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:25,746 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 03:57:26,440 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:27,139 WARN L194 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:57:29,643 INFO L93 Difference]: Finished difference Result 787 states and 907 transitions. [2020-11-07 03:57:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 03:57:29,644 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2020-11-07 03:57:29,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:57:29,649 INFO L225 Difference]: With dead ends: 787 [2020-11-07 03:57:29,649 INFO L226 Difference]: Without dead ends: 783 [2020-11-07 03:57:29,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-11-07 03:57:29,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-11-07 03:57:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 629. [2020-11-07 03:57:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-11-07 03:57:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 683 transitions. [2020-11-07 03:57:29,942 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 683 transitions. Word has length 205 [2020-11-07 03:57:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:57:29,943 INFO L481 AbstractCegarLoop]: Abstraction has 629 states and 683 transitions. [2020-11-07 03:57:29,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:57:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 683 transitions. [2020-11-07 03:57:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-07 03:57:29,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:57:29,947 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] [2020-11-07 03:57:29,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 03:57:29,947 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]=== [2020-11-07 03:57:29,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:57:29,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1897191115, now seen corresponding path program 1 times [2020-11-07 03:57:29,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:57:29,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061412976] [2020-11-07 03:57:29,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:57:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,564 WARN L194 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:57:30,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:57:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:57:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:57:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:57:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:57:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:57:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:57:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:57:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:57:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-11-07 03:57:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-11-07 03:57:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:57:30,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061412976] [2020-11-07 03:57:30,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:57:30,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 03:57:30,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134873441] [2020-11-07 03:57:30,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 03:57:30,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:57:30,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 03:57:30,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 03:57:30,820 INFO L87 Difference]: Start difference. First operand 629 states and 683 transitions. Second operand 10 states. [2020-11-07 03:57:33,139 WARN L194 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:33,897 WARN L194 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:57:34,668 WARN L194 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-11-07 03:57:35,416 WARN L194 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:36,185 WARN L194 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:57:36,890 WARN L194 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:39,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:57:39,691 INFO L93 Difference]: Finished difference Result 1307 states and 1497 transitions. [2020-11-07 03:57:39,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 03:57:39,692 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 206 [2020-11-07 03:57:39,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:57:39,697 INFO L225 Difference]: With dead ends: 1307 [2020-11-07 03:57:39,697 INFO L226 Difference]: Without dead ends: 793 [2020-11-07 03:57:39,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-11-07 03:57:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2020-11-07 03:57:39,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 645. [2020-11-07 03:57:39,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-11-07 03:57:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 699 transitions. [2020-11-07 03:57:39,963 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 699 transitions. Word has length 206 [2020-11-07 03:57:39,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:57:39,963 INFO L481 AbstractCegarLoop]: Abstraction has 645 states and 699 transitions. [2020-11-07 03:57:39,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 03:57:39,964 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 699 transitions. [2020-11-07 03:57:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-07 03:57:39,967 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:57:39,968 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] [2020-11-07 03:57:39,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 03:57:39,968 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]=== [2020-11-07 03:57:39,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:57:39,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1834862379, now seen corresponding path program 1 times [2020-11-07 03:57:39,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:57:39,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708989337] [2020-11-07 03:57:39,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:57:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,643 WARN L194 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:57:40,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:57:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:57:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:57:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:57:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:57:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:57:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:57:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:57:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:57:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-11-07 03:57:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-11-07 03:57:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:57:40,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708989337] [2020-11-07 03:57:40,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:57:40,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 03:57:40,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929266502] [2020-11-07 03:57:40,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 03:57:40,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:57:40,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 03:57:40,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-11-07 03:57:40,977 INFO L87 Difference]: Start difference. First operand 645 states and 699 transitions. Second operand 13 states. [2020-11-07 03:57:42,266 WARN L194 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 03:57:43,019 WARN L194 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 03:57:43,758 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:44,470 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:57:45,156 WARN L194 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:46,862 WARN L194 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:47,572 WARN L194 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:57:48,296 WARN L194 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:49,004 WARN L194 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 03:57:49,661 WARN L194 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 03:57:52,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:57:52,942 INFO L93 Difference]: Finished difference Result 1345 states and 1553 transitions. [2020-11-07 03:57:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 03:57:52,946 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 206 [2020-11-07 03:57:52,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:57:52,953 INFO L225 Difference]: With dead ends: 1345 [2020-11-07 03:57:52,953 INFO L226 Difference]: Without dead ends: 815 [2020-11-07 03:57:52,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2020-11-07 03:57:52,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-11-07 03:57:53,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 657. [2020-11-07 03:57:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-11-07 03:57:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 711 transitions. [2020-11-07 03:57:53,290 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 711 transitions. Word has length 206 [2020-11-07 03:57:53,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:57:53,291 INFO L481 AbstractCegarLoop]: Abstraction has 657 states and 711 transitions. [2020-11-07 03:57:53,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 03:57:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 711 transitions. [2020-11-07 03:57:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-07 03:57:53,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:57:53,295 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] [2020-11-07 03:57:53,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 03:57:53,295 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]=== [2020-11-07 03:57:53,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:57:53,296 INFO L82 PathProgramCache]: Analyzing trace with hash -320199000, now seen corresponding path program 1 times [2020-11-07 03:57:53,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:57:53,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73240521] [2020-11-07 03:57:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:57:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:53,907 WARN L194 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 03:57:53,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 03:57:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 03:57:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:53,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 03:57:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:53,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 03:57:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:53,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 03:57:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:53,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-11-07 03:57:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:53,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 03:57:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 03:57:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 03:57:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-11-07 03:57:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-11-07 03:57:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-11-07 03:57:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 03:57:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 03:57:54,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73240521] [2020-11-07 03:57:54,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 03:57:54,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 03:57:54,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764968377] [2020-11-07 03:57:54,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 03:57:54,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 03:57:54,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 03:57:54,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 03:57:54,131 INFO L87 Difference]: Start difference. First operand 657 states and 711 transitions. Second operand 7 states. [2020-11-07 03:57:55,169 WARN L194 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:57:56,342 WARN L194 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 03:58:01,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 03:58:01,309 INFO L93 Difference]: Finished difference Result 1811 states and 2144 transitions. [2020-11-07 03:58:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 03:58:01,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-11-07 03:58:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 03:58:01,319 INFO L225 Difference]: With dead ends: 1811 [2020-11-07 03:58:01,319 INFO L226 Difference]: Without dead ends: 1269 [2020-11-07 03:58:01,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-11-07 03:58:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2020-11-07 03:58:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1095. [2020-11-07 03:58:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2020-11-07 03:58:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1227 transitions. [2020-11-07 03:58:01,918 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1227 transitions. Word has length 206 [2020-11-07 03:58:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 03:58:01,919 INFO L481 AbstractCegarLoop]: Abstraction has 1095 states and 1227 transitions. [2020-11-07 03:58:01,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 03:58:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1227 transitions. [2020-11-07 03:58:01,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-11-07 03:58:01,923 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 03:58:01,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 03:58:01,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 03:58:01,924 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 03:58:01,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 03:58:01,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1130921074, now seen corresponding path program 1 times [2020-11-07 03:58:01,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 03:58:01,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436844544] [2020-11-07 03:58:01,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 03:58:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:58:01,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:58:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 03:58:02,061 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 03:58:02,298 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 03:58:02,298 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 03:58:02,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 03:58:02,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:58:02 BoogieIcfgContainer [2020-11-07 03:58:02,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 03:58:02,627 INFO L168 Benchmark]: Toolchain (without parser) took 85541.48 ms. Allocated memory was 151.0 MB in the beginning and 453.0 MB in the end (delta: 302.0 MB). Free memory was 126.8 MB in the beginning and 246.8 MB in the end (delta: -120.1 MB). Peak memory consumption was 182.3 MB. Max. memory is 8.0 GB. [2020-11-07 03:58:02,631 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 126.7 MB in the end (delta: 89.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 03:58:02,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.58 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 104.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 03:58:02,632 INFO L168 Benchmark]: Boogie Preprocessor took 183.52 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 100.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 03:58:02,634 INFO L168 Benchmark]: RCFGBuilder took 2097.11 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.4 MB in the beginning and 130.5 MB in the end (delta: -30.2 MB). Peak memory consumption was 47.0 MB. Max. memory is 8.0 GB. [2020-11-07 03:58:02,637 INFO L168 Benchmark]: TraceAbstraction took 82594.15 ms. Allocated memory was 181.4 MB in the beginning and 453.0 MB in the end (delta: 271.6 MB). Free memory was 130.0 MB in the beginning and 246.8 MB in the end (delta: -116.8 MB). Peak memory consumption was 154.8 MB. Max. memory is 8.0 GB. [2020-11-07 03:58:02,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 126.7 MB in the end (delta: 89.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 647.58 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 104.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 183.52 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 100.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2097.11 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.4 MB in the beginning and 130.5 MB in the end (delta: -30.2 MB). Peak memory consumption was 47.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 82594.15 ms. Allocated memory was 181.4 MB in the beginning and 453.0 MB in the end (delta: 271.6 MB). Free memory was 130.0 MB in the beginning and 246.8 MB in the end (delta: -116.8 MB). Peak memory consumption was 154.8 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: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=180, head={0:0}, methaneLevelCritical=151, pumpRunning=141, systemActive=140, waterLevel=144] [L446] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=141, systemActive=140, waterLevel=144] [L556] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=140, waterLevel=144] [L557] int systemActive = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=144] [L880] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=151, pumpRunning=0, systemActive=1, waterLevel=1] [L881] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=180, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=151, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L873] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L874] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L534] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L534] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L536] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L538] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L539] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L780] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L781] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L782] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L784] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L787] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L789] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L791] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L797] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L799] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L801] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L898] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L899] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L807] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L809] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L811] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L910] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L913] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L811] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L817] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L819] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L832] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L644] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L647] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L662] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L636] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L741] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L742] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L743] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L960] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L963] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L967] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L968] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L747] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L747] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L749] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L752] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L754] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L755] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L597] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L599] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L601] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L672] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L601] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L636] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L662] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L578] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L47] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L51] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L919] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L922] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L923] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L51] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L55] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L696] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L699] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L700] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L55] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L55] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L59] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L75] CALL reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product53.cil.c", 3, "reach_error") VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 662 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 82.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 70.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2442 SDtfs, 4205 SDslu, 4061 SDs, 0 SdLazy, 8681 SolverSat, 1287 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 366 GetRequests, 247 SyntacticMatches, 5 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 36.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1095occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 901 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 1865 NumberOfCodeBlocks, 1865 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1645 ConstructedInterpolants, 0 QuantifiedInterpolants, 773157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...