/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 16:21:00,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 16:21:00,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 16:21:00,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 16:21:00,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 16:21:00,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 16:21:00,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 16:21:00,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 16:21:00,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 16:21:00,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 16:21:00,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 16:21:00,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 16:21:00,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 16:21:00,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 16:21:00,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 16:21:00,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 16:21:00,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 16:21:00,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 16:21:00,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 16:21:00,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 16:21:00,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 16:21:00,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 16:21:00,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 16:21:00,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 16:21:00,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 16:21:00,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 16:21:00,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 16:21:00,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 16:21:00,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 16:21:00,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 16:21:00,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 16:21:00,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 16:21:00,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 16:21:00,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 16:21:00,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 16:21:00,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 16:21:00,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 16:21:00,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 16:21:00,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 16:21:00,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 16:21:00,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 16:21:00,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 16:21:00,857 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 16:21:00,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 16:21:00,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 16:21:00,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 16:21:00,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 16:21:00,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 16:21:00,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 16:21:00,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 16:21:00,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 16:21:00,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 16:21:00,866 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 16:21:00,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 16:21:00,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 16:21:00,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 16:21:00,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 16:21:00,867 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 16:21:00,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 16:21:00,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 16:21:00,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:21:00,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 16:21:00,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 16:21:00,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 16:21:00,869 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 16:21:01,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 16:21:01,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 16:21:01,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 16:21:01,326 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 16:21:01,327 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 16:21:01,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-23 16:21:01,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2fa1c06/13ea67aee4ff4345bef1511506e49eb3/FLAGf563713d4 [2021-02-23 16:21:02,160 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 16:21:02,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-23 16:21:02,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2fa1c06/13ea67aee4ff4345bef1511506e49eb3/FLAGf563713d4 [2021-02-23 16:21:02,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2fa1c06/13ea67aee4ff4345bef1511506e49eb3 [2021-02-23 16:21:02,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 16:21:02,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 16:21:02,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 16:21:02,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 16:21:02,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 16:21:02,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:21:02" (1/1) ... [2021-02-23 16:21:02,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af9bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:02, skipping insertion in model container [2021-02-23 16:21:02,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 04:21:02" (1/1) ... [2021-02-23 16:21:02,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 16:21:02,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 16:21:02,791 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_product04.cil.c[13860,13873] [2021-02-23 16:21:02,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:21:02,848 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 16:21:02,960 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_product04.cil.c[13860,13873] [2021-02-23 16:21:02,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 16:21:03,010 INFO L208 MainTranslator]: Completed translation [2021-02-23 16:21:03,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03 WrapperNode [2021-02-23 16:21:03,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 16:21:03,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 16:21:03,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 16:21:03,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 16:21:03,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... [2021-02-23 16:21:03,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... [2021-02-23 16:21:03,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... [2021-02-23 16:21:03,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... [2021-02-23 16:21:03,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... [2021-02-23 16:21:03,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... [2021-02-23 16:21:03,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... [2021-02-23 16:21:03,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 16:21:03,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 16:21:03,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 16:21:03,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 16:21:03,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 16:21:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 16:21:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 16:21:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 16:21:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 16:21:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 16:21:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 16:21:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 16:21:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 16:21:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 16:21:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 16:21:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 16:21:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 16:21:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 16:21:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 16:21:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 16:21:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 16:21:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 16:21:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 16:21:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 16:21:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 16:21:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 16:21:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 16:21:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 16:21:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 16:21:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 16:21:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 16:21:03,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:21:03,262 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 16:21:03,262 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 16:21:03,262 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 16:21:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 16:21:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 16:21:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 16:21:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 16:21:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 16:21:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 16:21:03,265 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 16:21:03,266 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 16:21:03,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 16:21:03,268 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 16:21:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 16:21:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 16:21:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 16:21:03,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 16:21:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 16:21:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 16:21:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 16:21:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 16:21:03,270 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 16:21:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 16:21:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 16:21:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 16:21:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 16:21:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 16:21:03,271 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 16:21:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 16:21:03,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 16:21:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 16:21:03,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 16:21:04,295 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 16:21:04,295 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 16:21:04,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:21:04 BoogieIcfgContainer [2021-02-23 16:21:04,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 16:21:04,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 16:21:04,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 16:21:04,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 16:21:04,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 04:21:02" (1/3) ... [2021-02-23 16:21:04,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551a66e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:21:04, skipping insertion in model container [2021-02-23 16:21:04,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 04:21:03" (2/3) ... [2021-02-23 16:21:04,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551a66e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 04:21:04, skipping insertion in model container [2021-02-23 16:21:04,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 04:21:04" (3/3) ... [2021-02-23 16:21:04,310 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2021-02-23 16:21:04,317 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 16:21:04,323 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 16:21:04,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 16:21:04,373 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 16:21:04,374 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 16:21:04,374 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 16:21:04,374 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 16:21:04,374 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 16:21:04,374 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 16:21:04,374 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 16:21:04,374 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 16:21:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2021-02-23 16:21:04,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 16:21:04,439 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:04,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:21:04,441 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:04,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:04,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1280139405, now seen corresponding path program 1 times [2021-02-23 16:21:04,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:04,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [486242087] [2021-02-23 16:21:04,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:04,535 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:04,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:04,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:04,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:04,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,340 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:05,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 16:21:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:21:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 16:21:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:05,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:05,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:05,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [486242087] [2021-02-23 16:21:05,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:05,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 16:21:05,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492401377] [2021-02-23 16:21:05,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 16:21:05,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:05,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 16:21:05,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:21:05,585 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2021-02-23 16:21:07,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:07,066 INFO L93 Difference]: Finished difference Result 400 states and 477 transitions. [2021-02-23 16:21:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 16:21:07,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 16:21:07,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:07,095 INFO L225 Difference]: With dead ends: 400 [2021-02-23 16:21:07,096 INFO L226 Difference]: Without dead ends: 259 [2021-02-23 16:21:07,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 16:21:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-02-23 16:21:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 219. [2021-02-23 16:21:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-23 16:21:07,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-02-23 16:21:07,241 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 158 [2021-02-23 16:21:07,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:07,242 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-02-23 16:21:07,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 16:21:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-02-23 16:21:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 16:21:07,247 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:07,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:21:07,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 16:21:07,248 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:07,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:07,249 INFO L82 PathProgramCache]: Analyzing trace with hash -987385386, now seen corresponding path program 1 times [2021-02-23 16:21:07,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:07,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317067872] [2021-02-23 16:21:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:07,254 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:07,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,694 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:07,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 16:21:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 16:21:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 16:21:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:07,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:07,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:07,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317067872] [2021-02-23 16:21:07,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:07,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 16:21:07,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735724932] [2021-02-23 16:21:07,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 16:21:07,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:07,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 16:21:07,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 16:21:07,823 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 4 states. [2021-02-23 16:21:08,581 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:21:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:09,292 INFO L93 Difference]: Finished difference Result 303 states and 337 transitions. [2021-02-23 16:21:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 16:21:09,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 16:21:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:09,296 INFO L225 Difference]: With dead ends: 303 [2021-02-23 16:21:09,296 INFO L226 Difference]: Without dead ends: 242 [2021-02-23 16:21:09,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 16:21:09,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-02-23 16:21:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 209. [2021-02-23 16:21:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-02-23 16:21:09,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 221 transitions. [2021-02-23 16:21:09,371 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 221 transitions. Word has length 159 [2021-02-23 16:21:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:09,372 INFO L480 AbstractCegarLoop]: Abstraction has 209 states and 221 transitions. [2021-02-23 16:21:09,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 16:21:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 221 transitions. [2021-02-23 16:21:09,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 16:21:09,375 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:09,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 16:21:09,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 16:21:09,376 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:09,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1527823238, now seen corresponding path program 1 times [2021-02-23 16:21:09,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:09,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040101451] [2021-02-23 16:21:09,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:09,381 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:09,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:09,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 16:21:09,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,828 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:09,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:21:09,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 16:21:09,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 16:21:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:09,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 16:21:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 16:21:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:09,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 16:21:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:09,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:09,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:10,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040101451] [2021-02-23 16:21:10,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:10,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 16:21:10,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734530619] [2021-02-23 16:21:10,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 16:21:10,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:10,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 16:21:10,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 16:21:10,053 INFO L87 Difference]: Start difference. First operand 209 states and 221 transitions. Second operand 10 states. [2021-02-23 16:21:10,764 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:21:11,186 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 16:21:11,574 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 16:21:11,956 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:12,345 WARN L202 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:21:12,710 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:13,752 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 16:21:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:15,486 INFO L93 Difference]: Finished difference Result 555 states and 643 transitions. [2021-02-23 16:21:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 16:21:15,486 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 16:21:15,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:15,494 INFO L225 Difference]: With dead ends: 555 [2021-02-23 16:21:15,495 INFO L226 Difference]: Without dead ends: 461 [2021-02-23 16:21:15,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 16:21:15,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-02-23 16:21:15,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 362. [2021-02-23 16:21:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2021-02-23 16:21:15,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 397 transitions. [2021-02-23 16:21:15,650 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 397 transitions. Word has length 172 [2021-02-23 16:21:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:15,651 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 397 transitions. [2021-02-23 16:21:15,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 16:21:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 397 transitions. [2021-02-23 16:21:15,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-23 16:21:15,655 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:15,655 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 16:21:15,655 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 16:21:15,655 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:15,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:15,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1067126703, now seen corresponding path program 1 times [2021-02-23 16:21:15,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:15,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170772492] [2021-02-23 16:21:15,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:15,660 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:15,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:15,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:15,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:15,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:15,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:15,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:15,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:15,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:15,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,068 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 16:21:16,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 16:21:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 16:21:16,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 16:21:16,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 16:21:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 16:21:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 16:21:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 16:21:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 16:21:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-23 16:21:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-23 16:21:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:16,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 16:21:16,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-23 16:21:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 16:21:16,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 16:21:16,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 16:21:16,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 16:21:16,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170772492] [2021-02-23 16:21:16,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 16:21:16,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 16:21:16,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421204070] [2021-02-23 16:21:16,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 16:21:16,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 16:21:16,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 16:21:16,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 16:21:16,258 INFO L87 Difference]: Start difference. First operand 362 states and 397 transitions. Second operand 9 states. [2021-02-23 16:21:16,883 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:21:18,431 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:18,810 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:21:19,243 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:19,688 WARN L202 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 16:21:20,033 WARN L202 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 16:21:20,412 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:20,746 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 16:21:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 16:21:21,389 INFO L93 Difference]: Finished difference Result 914 states and 1082 transitions. [2021-02-23 16:21:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 16:21:21,390 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2021-02-23 16:21:21,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 16:21:21,397 INFO L225 Difference]: With dead ends: 914 [2021-02-23 16:21:21,397 INFO L226 Difference]: Without dead ends: 667 [2021-02-23 16:21:21,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 16:21:21,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-02-23 16:21:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 584. [2021-02-23 16:21:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2021-02-23 16:21:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 660 transitions. [2021-02-23 16:21:21,633 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 660 transitions. Word has length 175 [2021-02-23 16:21:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 16:21:21,634 INFO L480 AbstractCegarLoop]: Abstraction has 584 states and 660 transitions. [2021-02-23 16:21:21,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 16:21:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 660 transitions. [2021-02-23 16:21:21,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-23 16:21:21,638 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 16:21:21,638 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 16:21:21,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 16:21:21,639 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 16:21:21,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 16:21:21,639 INFO L82 PathProgramCache]: Analyzing trace with hash -2145354115, now seen corresponding path program 1 times [2021-02-23 16:21:21,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 16:21:21,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826519135] [2021-02-23 16:21:21,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 16:21:21,643 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 16:21:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:21:21,715 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:21:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 16:21:21,803 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 16:21:21,988 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 16:21:21,988 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 16:21:21,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 16:21:22,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 04:21:22 BoogieIcfgContainer [2021-02-23 16:21:22,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 16:21:22,013 INFO L168 Benchmark]: Toolchain (without parser) took 19584.73 ms. Allocated memory was 151.0 MB in the beginning and 406.8 MB in the end (delta: 255.9 MB). Free memory was 126.5 MB in the beginning and 347.1 MB in the end (delta: -220.5 MB). Peak memory consumption was 244.3 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:22,014 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 16:21:22,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.54 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 105.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:22,015 INFO L168 Benchmark]: Boogie Preprocessor took 153.91 ms. Allocated memory is still 151.0 MB. Free memory was 105.6 MB in the beginning and 133.6 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:22,015 INFO L168 Benchmark]: RCFGBuilder took 1134.04 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 96.2 MB in the end (delta: 37.4 MB). Peak memory consumption was 67.5 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:22,016 INFO L168 Benchmark]: TraceAbstraction took 17709.42 ms. Allocated memory was 151.0 MB in the beginning and 406.8 MB in the end (delta: 255.9 MB). Free memory was 95.7 MB in the beginning and 347.1 MB in the end (delta: -251.4 MB). Peak memory consumption was 212.0 MB. Max. memory is 8.0 GB. [2021-02-23 16:21:22,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 564.54 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 105.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 153.91 ms. Allocated memory is still 151.0 MB. Free memory was 105.6 MB in the beginning and 133.6 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1134.04 ms. Allocated memory is still 151.0 MB. Free memory was 133.6 MB in the beginning and 96.2 MB in the end (delta: 37.4 MB). Peak memory consumption was 67.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 17709.42 ms. Allocated memory was 151.0 MB in the beginning and 406.8 MB in the end (delta: 255.9 MB). Free memory was 95.7 MB in the beginning and 347.1 MB in the end (delta: -251.4 MB). Peak memory consumption was 212.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 635]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L532] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; [L608] int retValue_acc ; [L609] int tmp ; [L613] FCALL select_helpers() [L614] FCALL select_features() [L615] CALL, EXPR valid_product() [L523] int retValue_acc ; [L526] retValue_acc = 1 [L527] return (retValue_acc); [L615] RET, EXPR valid_product() [L615] tmp = valid_product() [L617] COND TRUE \read(tmp) [L619] FCALL setup() [L620] CALL runTest() [L602] CALL test() [L810] int splverifierCounter ; [L811] int tmp ; [L812] int tmp___0 ; [L813] int tmp___1 ; [L814] int tmp___2 ; [L817] splverifierCounter = 0 [L819] COND TRUE 1 [L821] COND TRUE splverifierCounter < 4 [L827] tmp = __VERIFIER_nondet_int() [L829] COND TRUE \read(tmp) [L831] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L831] RET waterRise() [L837] tmp___0 = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp___0)) [L847] tmp___2 = __VERIFIER_nondet_int() [L849] COND TRUE \read(tmp___2) [L851] CALL startSystem() [L804] systemActive = 1 [L851] RET startSystem() [L866] CALL timeShift() [L686] COND FALSE !(\read(pumpRunning)) [L693] COND TRUE \read(systemActive) [L695] FCALL processEnvironment() [L701] CALL __utac_acc__Specification3_spec__1() [L642] int tmp ; [L643] int tmp___0 ; [L644] int tmp___1 ; [L648] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L648] RET, EXPR isMethaneLevelCritical() [L648] tmp = isMethaneLevelCritical() [L650] COND FALSE !(\read(tmp)) [L654] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L654] RET, EXPR getWaterLevel() [L654] tmp___0 = getWaterLevel() [L656] COND TRUE tmp___0 == 2 [L658] CALL, EXPR isPumpRunning() [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); [L658] RET, EXPR isPumpRunning() [L658] tmp___1 = isPumpRunning() [L660] COND FALSE !(\read(tmp___1)) [L664] CALL __automaton_fail() [L635] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 820 SDtfs, 1185 SDslu, 1355 SDs, 0 SdLazy, 2290 SolverSat, 392 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=584occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 255 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...