/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_spec3_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 21:59:28,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 21:59:28,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 21:59:28,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 21:59:28,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 21:59:28,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 21:59:28,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 21:59:28,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 21:59:28,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 21:59:28,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 21:59:28,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 21:59:28,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 21:59:28,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 21:59:28,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 21:59:28,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 21:59:28,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 21:59:28,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 21:59:28,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 21:59:28,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 21:59:28,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 21:59:28,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 21:59:28,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 21:59:28,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 21:59:28,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 21:59:28,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 21:59:28,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 21:59:28,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 21:59:28,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 21:59:28,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 21:59:28,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 21:59:28,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 21:59:28,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 21:59:28,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 21:59:28,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 21:59:28,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 21:59:28,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 21:59:28,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 21:59:28,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 21:59:28,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 21:59:28,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 21:59:28,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 21:59:28,393 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 21:59:28,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 21:59:28,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 21:59:28,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 21:59:28,408 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 21:59:28,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 21:59:28,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 21:59:28,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 21:59:28,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 21:59:28,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 21:59:28,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 21:59:28,410 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 21:59:28,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 21:59:28,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 21:59:28,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 21:59:28,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 21:59:28,411 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 21:59:28,411 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 21:59:28,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 21:59:28,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 21:59:28,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 21:59:28,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 21:59:28,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 21:59:28,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 21:59:28,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 21:59:28,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 21:59:28,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 21:59:28,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 21:59:28,846 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 21:59:28,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2021-02-23 21:59:28,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bddf27e/f57589e893904deebe02a53291ea2641/FLAGce497fb60 [2021-02-23 21:59:29,603 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 21:59:29,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product10.cil.c [2021-02-23 21:59:29,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bddf27e/f57589e893904deebe02a53291ea2641/FLAGce497fb60 [2021-02-23 21:59:29,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7bddf27e/f57589e893904deebe02a53291ea2641 [2021-02-23 21:59:29,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 21:59:29,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 21:59:29,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 21:59:29,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 21:59:29,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 21:59:29,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:59:29" (1/1) ... [2021-02-23 21:59:29,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203a6926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:29, skipping insertion in model container [2021-02-23 21:59:29,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 09:59:29" (1/1) ... [2021-02-23 21:59:29,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 21:59:29,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 21:59:30,195 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_product10.cil.c[3019,3032] [2021-02-23 21:59:30,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:59:30,319 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 21:59:30,344 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_product10.cil.c[3019,3032] [2021-02-23 21:59:30,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 21:59:30,489 INFO L208 MainTranslator]: Completed translation [2021-02-23 21:59:30,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30 WrapperNode [2021-02-23 21:59:30,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 21:59:30,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 21:59:30,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 21:59:30,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 21:59:30,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (1/1) ... [2021-02-23 21:59:30,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (1/1) ... [2021-02-23 21:59:30,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (1/1) ... [2021-02-23 21:59:30,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (1/1) ... [2021-02-23 21:59:30,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (1/1) ... [2021-02-23 21:59:30,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (1/1) ... [2021-02-23 21:59:30,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (1/1) ... [2021-02-23 21:59:30,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 21:59:30,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 21:59:30,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 21:59:30,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 21:59:30,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (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 21:59:30,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 21:59:30,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 21:59:30,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 21:59:30,763 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 21:59:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 21:59:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 21:59:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 21:59:30,764 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 21:59:30,765 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 21:59:30,765 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 21:59:30,765 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 21:59:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 21:59:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 21:59:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 21:59:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 21:59:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 21:59:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 21:59:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 21:59:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 21:59:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 21:59:30,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 21:59:30,772 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 21:59:30,772 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 21:59:30,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 21:59:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-23 21:59:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 21:59:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 21:59:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 21:59:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 21:59:30,804 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 21:59:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 21:59:30,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:59:30,811 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 21:59:30,812 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 21:59:30,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 21:59:30,812 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 21:59:30,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 21:59:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 21:59:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 21:59:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 21:59:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 21:59:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 21:59:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 21:59:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 21:59:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 21:59:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 21:59:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 21:59:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 21:59:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 21:59:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 21:59:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 21:59:30,817 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 21:59:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 21:59:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 21:59:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 21:59:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 21:59:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 21:59:30,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 21:59:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 21:59:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 21:59:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 21:59:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 21:59:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 21:59:30,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 21:59:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 21:59:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 21:59:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 21:59:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 21:59:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 21:59:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 21:59:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 21:59:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 21:59:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 21:59:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 21:59:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 21:59:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 21:59:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 21:59:30,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 21:59:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 21:59:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-23 21:59:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 21:59:30,826 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 21:59:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 21:59:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 21:59:30,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 21:59:30,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 21:59:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 21:59:30,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 21:59:32,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 21:59:32,010 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 21:59:32,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:59:32 BoogieIcfgContainer [2021-02-23 21:59:32,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 21:59:32,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 21:59:32,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 21:59:32,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 21:59:32,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 09:59:29" (1/3) ... [2021-02-23 21:59:32,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a47fad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:59:32, skipping insertion in model container [2021-02-23 21:59:32,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 09:59:30" (2/3) ... [2021-02-23 21:59:32,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a47fad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 09:59:32, skipping insertion in model container [2021-02-23 21:59:32,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 09:59:32" (3/3) ... [2021-02-23 21:59:32,023 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product10.cil.c [2021-02-23 21:59:32,029 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 21:59:32,035 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 21:59:32,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 21:59:32,078 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 21:59:32,078 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 21:59:32,078 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 21:59:32,079 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 21:59:32,079 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 21:59:32,079 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 21:59:32,079 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 21:59:32,079 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 21:59:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states. [2021-02-23 21:59:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 21:59:32,122 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:32,123 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 21:59:32,124 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:32,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:32,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1515267136, now seen corresponding path program 1 times [2021-02-23 21:59:32,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:32,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501982672] [2021-02-23 21:59:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:32,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:32,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:32,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:32,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:32,908 WARN L202 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:32,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 21:59:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:59:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 21:59:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:33,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:33,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:33,146 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 21:59:33,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501982672] [2021-02-23 21:59:33,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:33,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 21:59:33,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027046112] [2021-02-23 21:59:33,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 21:59:33,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:33,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 21:59:33,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 21:59:33,172 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 3 states. [2021-02-23 21:59:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:34,440 INFO L93 Difference]: Finished difference Result 380 states and 454 transitions. [2021-02-23 21:59:34,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 21:59:34,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 21:59:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:34,458 INFO L225 Difference]: With dead ends: 380 [2021-02-23 21:59:34,458 INFO L226 Difference]: Without dead ends: 248 [2021-02-23 21:59:34,463 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 21:59:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-02-23 21:59:34,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 210. [2021-02-23 21:59:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-02-23 21:59:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 224 transitions. [2021-02-23 21:59:34,623 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 224 transitions. Word has length 158 [2021-02-23 21:59:34,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:34,625 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 224 transitions. [2021-02-23 21:59:34,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 21:59:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 224 transitions. [2021-02-23 21:59:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 21:59:34,630 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:34,630 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 21:59:34,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 21:59:34,631 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:34,631 INFO L82 PathProgramCache]: Analyzing trace with hash 504407249, now seen corresponding path program 1 times [2021-02-23 21:59:34,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:34,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386390498] [2021-02-23 21:59:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:34,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:34,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:34,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:34,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:34,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:34,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,095 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 21:59:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 21:59:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 21:59:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:35,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:35,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:35,253 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 21:59:35,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386390498] [2021-02-23 21:59:35,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:35,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 21:59:35,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524793633] [2021-02-23 21:59:35,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 21:59:35,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:35,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 21:59:35,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 21:59:35,260 INFO L87 Difference]: Start difference. First operand 210 states and 224 transitions. Second operand 4 states. [2021-02-23 21:59:36,016 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 21:59:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:36,643 INFO L93 Difference]: Finished difference Result 292 states and 324 transitions. [2021-02-23 21:59:36,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 21:59:36,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 21:59:36,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:36,648 INFO L225 Difference]: With dead ends: 292 [2021-02-23 21:59:36,648 INFO L226 Difference]: Without dead ends: 231 [2021-02-23 21:59:36,650 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 21:59:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-02-23 21:59:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 200. [2021-02-23 21:59:36,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-23 21:59:36,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 211 transitions. [2021-02-23 21:59:36,724 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 211 transitions. Word has length 159 [2021-02-23 21:59:36,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:36,725 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 211 transitions. [2021-02-23 21:59:36,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 21:59:36,725 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 211 transitions. [2021-02-23 21:59:36,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 21:59:36,727 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:36,728 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 21:59:36,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 21:59:36,728 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:36,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:36,729 INFO L82 PathProgramCache]: Analyzing trace with hash -15522646, now seen corresponding path program 1 times [2021-02-23 21:59:36,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:36,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164496965] [2021-02-23 21:59:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:36,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:36,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:36,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:36,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:36,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:36,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:36,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:36,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:36,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:36,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 21:59:36,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:36,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,160 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:37,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:59:37,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 21:59:37,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:59:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:37,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 21:59:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 21:59:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 21:59:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:37,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:37,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:37,350 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 21:59:37,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164496965] [2021-02-23 21:59:37,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:37,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 21:59:37,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321707346] [2021-02-23 21:59:37,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 21:59:37,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:37,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 21:59:37,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 21:59:37,353 INFO L87 Difference]: Start difference. First operand 200 states and 211 transitions. Second operand 10 states. [2021-02-23 21:59:38,054 WARN L202 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:38,465 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 21:59:38,868 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 21:59:39,270 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:39,668 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:40,068 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:41,384 INFO L93 Difference]: Finished difference Result 338 states and 386 transitions. [2021-02-23 21:59:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 21:59:41,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 21:59:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:41,389 INFO L225 Difference]: With dead ends: 338 [2021-02-23 21:59:41,389 INFO L226 Difference]: Without dead ends: 253 [2021-02-23 21:59:41,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-02-23 21:59:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-02-23 21:59:41,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 200. [2021-02-23 21:59:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-23 21:59:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 210 transitions. [2021-02-23 21:59:41,466 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 210 transitions. Word has length 172 [2021-02-23 21:59:41,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:41,467 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 210 transitions. [2021-02-23 21:59:41,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 21:59:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 210 transitions. [2021-02-23 21:59:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-23 21:59:41,470 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:41,470 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] [2021-02-23 21:59:41,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 21:59:41,470 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:41,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:41,471 INFO L82 PathProgramCache]: Analyzing trace with hash 460964760, now seen corresponding path program 1 times [2021-02-23 21:59:41,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:41,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557538509] [2021-02-23 21:59:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,881 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:41,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 21:59:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:59:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 21:59:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 21:59:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 21:59:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:41,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:41,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:41,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:41,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:42,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-23 21:59:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:42,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:42,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:42,072 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 21:59:42,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557538509] [2021-02-23 21:59:42,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:42,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 21:59:42,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581505963] [2021-02-23 21:59:42,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 21:59:42,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:42,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 21:59:42,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 21:59:42,075 INFO L87 Difference]: Start difference. First operand 200 states and 210 transitions. Second operand 9 states. [2021-02-23 21:59:42,704 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:44,209 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:44,660 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:45,059 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:45,475 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:45,862 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 21:59:46,295 WARN L202 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:46,682 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 21:59:47,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:47,206 INFO L93 Difference]: Finished difference Result 430 states and 501 transitions. [2021-02-23 21:59:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 21:59:47,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2021-02-23 21:59:47,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:47,210 INFO L225 Difference]: With dead ends: 430 [2021-02-23 21:59:47,210 INFO L226 Difference]: Without dead ends: 345 [2021-02-23 21:59:47,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 21:59:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-02-23 21:59:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 275. [2021-02-23 21:59:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2021-02-23 21:59:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 297 transitions. [2021-02-23 21:59:47,327 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 297 transitions. Word has length 175 [2021-02-23 21:59:47,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:47,327 INFO L480 AbstractCegarLoop]: Abstraction has 275 states and 297 transitions. [2021-02-23 21:59:47,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 21:59:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 297 transitions. [2021-02-23 21:59:47,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-23 21:59:47,331 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:47,331 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] [2021-02-23 21:59:47,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 21:59:47,331 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:47,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:47,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1456520223, now seen corresponding path program 1 times [2021-02-23 21:59:47,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:47,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388859320] [2021-02-23 21:59:47,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:47,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,732 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 21:59:47,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 21:59:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 21:59:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 21:59:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 21:59:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 21:59:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 21:59:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 21:59:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-02-23 21:59:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 21:59:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-02-23 21:59:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-02-23 21:59:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-02-23 21:59:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 21:59:47,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 21:59:47,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 21:59:47,880 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 21:59:47,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388859320] [2021-02-23 21:59:47,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 21:59:47,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 21:59:47,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066592615] [2021-02-23 21:59:47,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 21:59:47,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 21:59:47,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 21:59:47,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 21:59:47,883 INFO L87 Difference]: Start difference. First operand 275 states and 297 transitions. Second operand 6 states. [2021-02-23 21:59:48,504 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 21:59:49,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 21:59:49,457 INFO L93 Difference]: Finished difference Result 423 states and 485 transitions. [2021-02-23 21:59:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 21:59:49,457 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2021-02-23 21:59:49,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 21:59:49,461 INFO L225 Difference]: With dead ends: 423 [2021-02-23 21:59:49,461 INFO L226 Difference]: Without dead ends: 327 [2021-02-23 21:59:49,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 21:59:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-02-23 21:59:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 261. [2021-02-23 21:59:49,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2021-02-23 21:59:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 276 transitions. [2021-02-23 21:59:49,574 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 276 transitions. Word has length 180 [2021-02-23 21:59:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 21:59:49,574 INFO L480 AbstractCegarLoop]: Abstraction has 261 states and 276 transitions. [2021-02-23 21:59:49,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 21:59:49,574 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 276 transitions. [2021-02-23 21:59:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-23 21:59:49,577 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 21:59:49,577 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] [2021-02-23 21:59:49,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 21:59:49,577 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 21:59:49,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 21:59:49,578 INFO L82 PathProgramCache]: Analyzing trace with hash 456942003, now seen corresponding path program 1 times [2021-02-23 21:59:49,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 21:59:49,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114548269] [2021-02-23 21:59:49,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 21:59:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:59:49,669 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:59:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 21:59:49,757 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 21:59:49,954 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 21:59:49,955 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 21:59:49,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 21:59:50,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 09:59:50 BoogieIcfgContainer [2021-02-23 21:59:50,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 21:59:50,178 INFO L168 Benchmark]: Toolchain (without parser) took 20243.60 ms. Allocated memory was 152.0 MB in the beginning and 392.2 MB in the end (delta: 240.1 MB). Free memory was 128.3 MB in the beginning and 235.6 MB in the end (delta: -107.3 MB). Peak memory consumption was 133.8 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:50,178 INFO L168 Benchmark]: CDTParser took 3.23 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 125.4 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 21:59:50,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.83 ms. Allocated memory is still 152.0 MB. Free memory was 127.1 MB in the beginning and 107.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:50,180 INFO L168 Benchmark]: Boogie Preprocessor took 156.19 ms. Allocated memory is still 152.0 MB. Free memory was 107.5 MB in the beginning and 103.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:50,181 INFO L168 Benchmark]: RCFGBuilder took 1364.87 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 103.6 MB in the beginning and 151.3 MB in the end (delta: -47.7 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:50,182 INFO L168 Benchmark]: TraceAbstraction took 18157.97 ms. Allocated memory was 182.5 MB in the beginning and 392.2 MB in the end (delta: 209.7 MB). Free memory was 150.8 MB in the beginning and 235.6 MB in the end (delta: -84.8 MB). Peak memory consumption was 124.9 MB. Max. memory is 8.0 GB. [2021-02-23 21:59:50,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.23 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 125.4 MB in the end (delta: 215.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 545.83 ms. Allocated memory is still 152.0 MB. Free memory was 127.1 MB in the beginning and 107.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 156.19 ms. Allocated memory is still 152.0 MB. Free memory was 107.5 MB in the beginning and 103.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1364.87 ms. Allocated memory was 152.0 MB in the beginning and 182.5 MB in the end (delta: 30.4 MB). Free memory was 103.6 MB in the beginning and 151.3 MB in the end (delta: -47.7 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18157.97 ms. Allocated memory was 182.5 MB in the beginning and 392.2 MB in the end (delta: 209.7 MB). Free memory was 150.8 MB in the beginning and 235.6 MB in the end (delta: -84.8 MB). Peak memory consumption was 124.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 170]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L86] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=144, cleanupTimeShifts=181, head={182:168}, methaneLevelCritical=147, pumpRunning=135, systemActive=134, waterLevel=1] [L87] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=144, cleanupTimeShifts=181, head={182:168}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=144, cleanupTimeShifts=181, head={0:0}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L615] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=144, cleanupTimeShifts=181, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=134, waterLevel=1] [L616] int systemActive = 1; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=144, cleanupTimeShifts=181, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=181, \old(head)=168, \old(head)=182, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L856] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L75] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L863] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L863] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L865] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L867] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L868] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L850] CALL test() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L547] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L552] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L554] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L556] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L562] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L564] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L566] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L105] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L572] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L574] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L582] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L584] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L586] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L744] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] RET startSystem() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L599] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L630] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L632] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L750] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L125] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L129] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L756] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L758] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L762] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L161] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L762] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L762] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L764] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L766] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L696] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L699] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L700] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L766] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L766] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L768] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L772] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] reach_error() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 600 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 960 SDtfs, 1385 SDslu, 1355 SDs, 0 SdLazy, 2115 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 258 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1024 NumberOfCodeBlocks, 1024 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 839 ConstructedInterpolants, 0 QuantifiedInterpolants, 354413 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...