/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:26:43,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:26:43,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:26:43,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:26:43,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:26:43,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:26:43,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:26:43,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:26:43,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:26:43,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:26:43,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:26:43,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:26:43,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:26:43,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:26:43,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:26:43,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:26:43,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:26:43,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:26:43,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:26:43,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:26:43,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:26:43,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:26:43,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:26:43,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:26:43,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:26:43,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:26:43,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:26:43,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:26:43,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:26:43,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:26:43,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:26:43,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:26:43,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:26:43,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:26:43,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:26:43,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:26:43,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:26:43,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:26:43,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:26:43,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:26:43,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:26:43,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:26:43,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:26:43,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:26:43,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:26:43,435 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:26:43,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:26:43,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:26:43,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:26:43,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:26:43,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:26:43,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:26:43,436 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:26:43,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:26:43,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:26:43,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:26:43,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:26:43,437 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:26:43,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:26:43,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:26:43,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:26:43,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:26:43,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:26:43,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:26:43,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:26:43,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:26:43,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:26:43,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:26:43,830 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:26:43,831 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:26:43,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2021-02-23 16:26:43,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab51f29be/b9e19c786a0b4fc2b5f501d16ab0ea18/FLAGcd23f3263 [2021-02-23 16:26:44,544 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:26:44,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2021-02-23 16:26:44,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab51f29be/b9e19c786a0b4fc2b5f501d16ab0ea18/FLAGcd23f3263 [2021-02-23 16:26:44,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab51f29be/b9e19c786a0b4fc2b5f501d16ab0ea18 [2021-02-23 16:26:44,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:26:44,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:26:44,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:26:44,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:26:44,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:26:44,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:26:44" (1/1) ... [2021-02-23 16:26:44,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6497e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:44, skipping insertion in model container [2021-02-23 16:26:44,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:26:44" (1/1) ... [2021-02-23 16:26:44,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:26:44,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:26:45,270 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c[18951,18964] [2021-02-23 16:26:45,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:26:45,298 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:26:45,394 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c[18951,18964] [2021-02-23 16:26:45,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:26:45,439 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:26:45,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45 WrapperNode [2021-02-23 16:26:45,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:26:45,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:26:45,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:26:45,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:26:45,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (1/1) ... [2021-02-23 16:26:45,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (1/1) ... [2021-02-23 16:26:45,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (1/1) ... [2021-02-23 16:26:45,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (1/1) ... [2021-02-23 16:26:45,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (1/1) ... [2021-02-23 16:26:45,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (1/1) ... [2021-02-23 16:26:45,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (1/1) ... [2021-02-23 16:26:45,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:26:45,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:26:45,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:26:45,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:26:45,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (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 [2021-02-23 16:26:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:26:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:26:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:26:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:26:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:26:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:26:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:26:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:26:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:26:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:26:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:26:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:26:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:26:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:26:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:26:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:26:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:26:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:26:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:26:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:26:45,684 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:26:45,684 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:26:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:26:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:26:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:26:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:26:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-23 16:26:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 16:26:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:26:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 16:26:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 16:26:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-23 16:26:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:26:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:26:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:26:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:26:45,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:26:45,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:26:45,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-23 16:26:45,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 16:26:45,688 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 16:26:45,688 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 16:26:45,689 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:26:45,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:26:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:26:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:26:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:26:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:26:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:26:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:26:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:26:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:26:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:26:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:26:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:26:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:26:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:26:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:26:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:26:45,691 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:26:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:26:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:26:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:26:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:26:45,692 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:26:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:26:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:26:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:26:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:26:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:26:45,693 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:26:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:26:45,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:26:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:26:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:26:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:26:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:26:45,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:26:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:26:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:26:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:26:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:26:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:26:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:26:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:26:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:26:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-23 16:26:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 16:26:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:26:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:26:45,720 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 16:26:45,720 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 16:26:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:26:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 16:26:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-23 16:26:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-02-23 16:26:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 16:26:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-02-23 16:26:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:26:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:26:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:26:45,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:26:47,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:26:47,147 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:26:47,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:26:47 BoogieIcfgContainer [2021-02-23 16:26:47,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:26:47,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:26:47,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:26:47,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:26:47,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:26:44" (1/3) ... [2021-02-23 16:26:47,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9772477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:26:47, skipping insertion in model container [2021-02-23 16:26:47,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:26:45" (2/3) ... [2021-02-23 16:26:47,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9772477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:26:47, skipping insertion in model container [2021-02-23 16:26:47,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:26:47" (3/3) ... [2021-02-23 16:26:47,166 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2021-02-23 16:26:47,173 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:26:47,179 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:26:47,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:26:47,229 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:26:47,229 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:26:47,230 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:26:47,230 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:26:47,230 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:26:47,230 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:26:47,230 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:26:47,230 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:26:47,269 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2021-02-23 16:26:47,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 16:26:47,313 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:26:47,314 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] [2021-02-23 16:26:47,315 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:26:47,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:26:47,335 INFO L82 PathProgramCache]: Analyzing trace with hash 991173375, now seen corresponding path program 1 times [2021-02-23 16:26:47,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:26:47,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458359831] [2021-02-23 16:26:47,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:26:47,429 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:26:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:47,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:47,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:47,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:47,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,105 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:26:48,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:26:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:26:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:26:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:26:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:26:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:26:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:26:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:26:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:48,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:48,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:26:48,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458359831] [2021-02-23 16:26:48,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:26:48,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 16:26:48,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061212130] [2021-02-23 16:26:48,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 16:26:48,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:26:48,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 16:26:48,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:26:48,299 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 3 states. [2021-02-23 16:26:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:26:50,144 INFO L93 Difference]: Finished difference Result 582 states and 692 transitions. [2021-02-23 16:26:50,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 16:26:50,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 16:26:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:26:50,164 INFO L225 Difference]: With dead ends: 582 [2021-02-23 16:26:50,164 INFO L226 Difference]: Without dead ends: 353 [2021-02-23 16:26:50,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:26:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-02-23 16:26:50,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 307. [2021-02-23 16:26:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2021-02-23 16:26:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 337 transitions. [2021-02-23 16:26:50,387 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 337 transitions. Word has length 158 [2021-02-23 16:26:50,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:26:50,388 INFO L480 AbstractCegarLoop]: Abstraction has 307 states and 337 transitions. [2021-02-23 16:26:50,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 16:26:50,389 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 337 transitions. [2021-02-23 16:26:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 16:26:50,394 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:26:50,394 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] [2021-02-23 16:26:50,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:26:50,394 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:26:50,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:26:50,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1451108837, now seen corresponding path program 1 times [2021-02-23 16:26:50,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:26:50,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927045368] [2021-02-23 16:26:50,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:26:50,400 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:26:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:26:50,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,800 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:26:50,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:26:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:26:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:26:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:26:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:26:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 16:26:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:26:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 16:26:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:50,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:50,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:50,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:26:50,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927045368] [2021-02-23 16:26:50,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:26:50,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:26:50,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268842142] [2021-02-23 16:26:50,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:26:50,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:26:50,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:26:50,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:26:50,934 INFO L87 Difference]: Start difference. First operand 307 states and 337 transitions. Second operand 4 states. [2021-02-23 16:26:51,659 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:26:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:26:53,068 INFO L93 Difference]: Finished difference Result 488 states and 554 transitions. [2021-02-23 16:26:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 16:26:53,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 16:26:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:26:53,078 INFO L225 Difference]: With dead ends: 488 [2021-02-23 16:26:53,079 INFO L226 Difference]: Without dead ends: 336 [2021-02-23 16:26:53,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:26:53,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-02-23 16:26:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 297. [2021-02-23 16:26:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2021-02-23 16:26:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 324 transitions. [2021-02-23 16:26:53,194 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 324 transitions. Word has length 159 [2021-02-23 16:26:53,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:26:53,195 INFO L480 AbstractCegarLoop]: Abstraction has 297 states and 324 transitions. [2021-02-23 16:26:53,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:26:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 324 transitions. [2021-02-23 16:26:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 16:26:53,198 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:26:53,199 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] [2021-02-23 16:26:53,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:26:53,199 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:26:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:26:53,200 INFO L82 PathProgramCache]: Analyzing trace with hash -89040518, now seen corresponding path program 1 times [2021-02-23 16:26:53,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:26:53,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870720622] [2021-02-23 16:26:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:26:53,204 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:26:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:26:53,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:26:53,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:26:53,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,641 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:26:53,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:26:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:26:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:26:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:26:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:26:53,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:26:53,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:26:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 16:26:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:26:53,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:26:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 16:26:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 16:26:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:26:53,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:26:53,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:26:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:26:53,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870720622] [2021-02-23 16:26:53,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:26:53,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:26:53,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330418872] [2021-02-23 16:26:53,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:26:53,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:26:53,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:26:53,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:26:53,834 INFO L87 Difference]: Start difference. First operand 297 states and 324 transitions. Second operand 10 states. [2021-02-23 16:26:54,443 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:26:54,841 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:26:55,234 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:26:55,619 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:26:55,980 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:26:56,337 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:26:57,306 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:27:00,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:27:00,690 INFO L93 Difference]: Finished difference Result 831 states and 970 transitions. [2021-02-23 16:27:00,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 16:27:00,691 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 16:27:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:27:00,698 INFO L225 Difference]: With dead ends: 831 [2021-02-23 16:27:00,698 INFO L226 Difference]: Without dead ends: 649 [2021-02-23 16:27:00,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 16:27:00,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-02-23 16:27:00,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 550. [2021-02-23 16:27:00,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2021-02-23 16:27:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 619 transitions. [2021-02-23 16:27:00,946 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 619 transitions. Word has length 172 [2021-02-23 16:27:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:27:00,947 INFO L480 AbstractCegarLoop]: Abstraction has 550 states and 619 transitions. [2021-02-23 16:27:00,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:27:00,947 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 619 transitions. [2021-02-23 16:27:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 16:27:00,952 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:27:00,952 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] [2021-02-23 16:27:00,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:27:00,952 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:27:00,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:27:00,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1638600071, now seen corresponding path program 1 times [2021-02-23 16:27:00,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:27:00,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096922342] [2021-02-23 16:27:00,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:27:00,957 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:27:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,406 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:27:01,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:27:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:27:01,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:27:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:27:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:27:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:27:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 16:27:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 16:27:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 16:27:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:27:01,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 16:27:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:27:01,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:27:01,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:27:01,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:27:01,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096922342] [2021-02-23 16:27:01,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:27:01,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:27:01,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099259191] [2021-02-23 16:27:01,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:27:01,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:27:01,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:27:01,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:27:01,634 INFO L87 Difference]: Start difference. First operand 550 states and 619 transitions. Second operand 9 states. [2021-02-23 16:27:02,219 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:27:04,474 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:27:04,891 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:27:05,381 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:27:05,861 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:27:06,215 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:27:06,576 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:27:06,950 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:27:08,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:27:08,332 INFO L93 Difference]: Finished difference Result 1510 states and 1822 transitions. [2021-02-23 16:27:08,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 16:27:08,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 16:27:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:27:08,340 INFO L225 Difference]: With dead ends: 1510 [2021-02-23 16:27:08,340 INFO L226 Difference]: Without dead ends: 1075 [2021-02-23 16:27:08,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 16:27:08,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2021-02-23 16:27:08,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 968. [2021-02-23 16:27:08,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2021-02-23 16:27:08,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1116 transitions. [2021-02-23 16:27:08,742 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1116 transitions. Word has length 177 [2021-02-23 16:27:08,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:27:08,742 INFO L480 AbstractCegarLoop]: Abstraction has 968 states and 1116 transitions. [2021-02-23 16:27:08,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:27:08,743 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1116 transitions. [2021-02-23 16:27:08,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 16:27:08,749 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:27:08,749 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] [2021-02-23 16:27:08,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:27:08,749 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:27:08,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:27:08,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1651444693, now seen corresponding path program 1 times [2021-02-23 16:27:08,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:27:08,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263455309] [2021-02-23 16:27:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:27:08,755 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:27:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:27:08,839 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:27:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:27:08,919 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:27:09,124 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:27:09,125 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:27:09,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:27:09,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:27:09 BoogieIcfgContainer [2021-02-23 16:27:09,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:27:09,154 INFO L168 Benchmark]: Toolchain (without parser) took 24334.72 ms. Allocated memory was 151.0 MB in the beginning and 488.6 MB in the end (delta: 337.6 MB). Free memory was 126.6 MB in the beginning and 334.5 MB in the end (delta: -207.9 MB). Peak memory consumption was 131.2 MB. Max. memory is 8.0 GB. [2021-02-23 16:27:09,155 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:27:09,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.90 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 102.9 MB in the end (delta: 22.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-02-23 16:27:09,156 INFO L168 Benchmark]: Boogie Preprocessor took 119.70 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 98.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 16:27:09,156 INFO L168 Benchmark]: RCFGBuilder took 1587.70 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 98.8 MB in the beginning and 150.0 MB in the end (delta: -51.2 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:27:09,157 INFO L168 Benchmark]: TraceAbstraction took 21995.98 ms. Allocated memory was 189.8 MB in the beginning and 488.6 MB in the end (delta: 298.8 MB). Free memory was 149.5 MB in the beginning and 334.5 MB in the end (delta: -185.1 MB). Peak memory consumption was 113.8 MB. Max. memory is 8.0 GB. [2021-02-23 16:27:09,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 606.90 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 102.9 MB in the end (delta: 22.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.70 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 98.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1587.70 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 98.8 MB in the beginning and 150.0 MB in the end (delta: -51.2 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21995.98 ms. Allocated memory was 189.8 MB in the beginning and 488.6 MB in the end (delta: 298.8 MB). Free memory was 149.5 MB in the beginning and 334.5 MB in the end (delta: -185.1 MB). Peak memory consumption was 113.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1015]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L589] int waterLevel = 1; [L590] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L943] int splverifierCounter ; [L944] int tmp ; [L945] int tmp___0 ; [L946] int tmp___1 ; [L947] int tmp___2 ; [L950] splverifierCounter = 0 [L952] COND TRUE 1 [L954] COND TRUE splverifierCounter < 4 [L960] tmp = __VERIFIER_nondet_int() [L962] COND TRUE \read(tmp) [L964] CALL waterRise() [L607] COND TRUE waterLevel < 2 [L608] waterLevel = waterLevel + 1 [L964] RET waterRise() [L970] tmp___0 = __VERIFIER_nondet_int() [L972] COND FALSE !(\read(tmp___0)) [L980] tmp___2 = __VERIFIER_nondet_int() [L982] COND FALSE !(\read(tmp___2)) [L988] tmp___1 = __VERIFIER_nondet_int() [L990] COND TRUE \read(tmp___1) [L992] CALL stopSystem() [L922] COND FALSE !(\read(pumpRunning)) [L929] systemActive = 0 [L992] RET stopSystem() [L999] CALL timeShift() [L703] COND FALSE !(\read(pumpRunning)) [L710] COND FALSE !(\read(systemActive)) [L718] CALL __utac_acc__Specification3_spec__1() [L552] int tmp ; [L553] int tmp___0 ; [L554] int tmp___1 ; [L558] CALL, EXPR isMethaneLevelCritical() [L628] int retValue_acc ; [L631] retValue_acc = methaneLevelCritical [L632] return (retValue_acc); [L558] RET, EXPR isMethaneLevelCritical() [L558] tmp = isMethaneLevelCritical() [L560] COND FALSE !(\read(tmp)) [L564] CALL, EXPR getWaterLevel() [L660] int retValue_acc ; [L663] retValue_acc = waterLevel [L664] return (retValue_acc); [L564] RET, EXPR getWaterLevel() [L564] tmp___0 = getWaterLevel() [L566] COND TRUE tmp___0 == 2 [L568] CALL, EXPR isPumpRunning() [L836] int retValue_acc ; [L839] retValue_acc = pumpRunning [L840] return (retValue_acc); [L568] RET, EXPR isPumpRunning() [L568] tmp___1 = isPumpRunning() [L570] COND FALSE !(\read(tmp___1)) [L574] CALL __automaton_fail() [L1015] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 674 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1181 SDtfs, 1909 SDslu, 1538 SDs, 0 SdLazy, 3796 SolverSat, 673 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=968occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 291 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...