/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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 18:55:01,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 18:55:01,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 18:55:01,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 18:55:01,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 18:55:01,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 18:55:01,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 18:55:01,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 18:55:01,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 18:55:01,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 18:55:01,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 18:55:01,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 18:55:01,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 18:55:01,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 18:55:01,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 18:55:01,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 18:55:01,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 18:55:01,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 18:55:01,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 18:55:01,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 18:55:01,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 18:55:01,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 18:55:01,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 18:55:01,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 18:55:01,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 18:55:01,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 18:55:01,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 18:55:01,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 18:55:01,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 18:55:01,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 18:55:01,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 18:55:01,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 18:55:01,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 18:55:01,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 18:55:01,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 18:55:01,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 18:55:01,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 18:55:01,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 18:55:01,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 18:55:01,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 18:55:01,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 18:55:01,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 18:55:01,544 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 18:55:01,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 18:55:01,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 18:55:01,546 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 18:55:01,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 18:55:01,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 18:55:01,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 18:55:01,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 18:55:01,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 18:55:01,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 18:55:01,548 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 18:55:01,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 18:55:01,549 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 18:55:01,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 18:55:01,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 18:55:01,549 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 18:55:01,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 18:55:01,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 18:55:01,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 18:55:01,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 18:55:01,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 18:55:01,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 18:55:01,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 18:55:01,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 18:55:01,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 18:55:01,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 18:55:01,942 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 18:55:01,943 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 18:55:01,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2021-02-21 18:55:02,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbc473ce/888f3a7613b940a9bf36ebcd88ed7246/FLAG619d7b21c [2021-02-21 18:55:02,657 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 18:55:02,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2021-02-21 18:55:02,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbc473ce/888f3a7613b940a9bf36ebcd88ed7246/FLAG619d7b21c [2021-02-21 18:55:02,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbc473ce/888f3a7613b940a9bf36ebcd88ed7246 [2021-02-21 18:55:02,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 18:55:02,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 18:55:02,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 18:55:02,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 18:55:03,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 18:55:03,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:55:02" (1/1) ... [2021-02-21 18:55:03,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e746194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03, skipping insertion in model container [2021-02-21 18:55:03,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:55:02" (1/1) ... [2021-02-21 18:55:03,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 18:55:03,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 18:55:03,317 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_product03.cil.c[14106,14119] [2021-02-21 18:55:03,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:55:03,349 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 18:55:03,417 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_product03.cil.c[14106,14119] [2021-02-21 18:55:03,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:55:03,467 INFO L208 MainTranslator]: Completed translation [2021-02-21 18:55:03,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03 WrapperNode [2021-02-21 18:55:03,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 18:55:03,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 18:55:03,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 18:55:03,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 18:55:03,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (1/1) ... [2021-02-21 18:55:03,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (1/1) ... [2021-02-21 18:55:03,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (1/1) ... [2021-02-21 18:55:03,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (1/1) ... [2021-02-21 18:55:03,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (1/1) ... [2021-02-21 18:55:03,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (1/1) ... [2021-02-21 18:55:03,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (1/1) ... [2021-02-21 18:55:03,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 18:55:03,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 18:55:03,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 18:55:03,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 18:55:03,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (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 [2021-02-21 18:55:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 18:55:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 18:55:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 18:55:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 18:55:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 18:55:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 18:55:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 18:55:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 18:55:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 18:55:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 18:55:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 18:55:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 18:55:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-21 18:55:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 18:55:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 18:55:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 18:55:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 18:55:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 18:55:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 18:55:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 18:55:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 18:55:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 18:55:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 18:55:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 18:55:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:55:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 18:55:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 18:55:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 18:55:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 18:55:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 18:55:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 18:55:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 18:55:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 18:55:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 18:55:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 18:55:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 18:55:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 18:55:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 18:55:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 18:55:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 18:55:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 18:55:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 18:55:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 18:55:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 18:55:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-21 18:55:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 18:55:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 18:55:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 18:55:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 18:55:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 18:55:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 18:55:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 18:55:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 18:55:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 18:55:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 18:55:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:55:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 18:55:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 18:55:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 18:55:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 18:55:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 18:55:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 18:55:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 18:55:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 18:55:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 18:55:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 18:55:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 18:55:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 18:55:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 18:55:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 18:55:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 18:55:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 18:55:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 18:55:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 18:55:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 18:55:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 18:55:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 18:55:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 18:55:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 18:55:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 18:55:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 18:55:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 18:55:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 18:55:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 18:55:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 18:55:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 18:55:05,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 18:55:05,331 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 18:55:05,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:55:05 BoogieIcfgContainer [2021-02-21 18:55:05,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 18:55:05,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 18:55:05,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 18:55:05,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 18:55:05,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 06:55:02" (1/3) ... [2021-02-21 18:55:05,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3f70d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:55:05, skipping insertion in model container [2021-02-21 18:55:05,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:03" (2/3) ... [2021-02-21 18:55:05,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3f70d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:55:05, skipping insertion in model container [2021-02-21 18:55:05,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:55:05" (3/3) ... [2021-02-21 18:55:05,353 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2021-02-21 18:55:05,363 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 18:55:05,367 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 18:55:05,390 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 18:55:05,424 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 18:55:05,425 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 18:55:05,425 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 18:55:05,425 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 18:55:05,425 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 18:55:05,425 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 18:55:05,425 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 18:55:05,425 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 18:55:05,447 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2021-02-21 18:55:05,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-21 18:55:05,467 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:05,468 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] [2021-02-21 18:55:05,469 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:05,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1170321926, now seen corresponding path program 1 times [2021-02-21 18:55:05,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:05,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877468970] [2021-02-21 18:55:05,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:05,565 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:05,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:05,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:05,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:05,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,358 WARN L202 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:06,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 18:55:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:55:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:55:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:06,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:06,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:06,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877468970] [2021-02-21 18:55:06,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:06,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 18:55:06,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655623953] [2021-02-21 18:55:06,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 18:55:06,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:06,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 18:55:06,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:55:06,609 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 3 states. [2021-02-21 18:55:08,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:08,099 INFO L93 Difference]: Finished difference Result 391 states and 467 transitions. [2021-02-21 18:55:08,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 18:55:08,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-21 18:55:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:08,117 INFO L225 Difference]: With dead ends: 391 [2021-02-21 18:55:08,117 INFO L226 Difference]: Without dead ends: 254 [2021-02-21 18:55:08,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:55:08,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-02-21 18:55:08,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 215. [2021-02-21 18:55:08,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2021-02-21 18:55:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 230 transitions. [2021-02-21 18:55:08,247 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 230 transitions. Word has length 158 [2021-02-21 18:55:08,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:08,248 INFO L480 AbstractCegarLoop]: Abstraction has 215 states and 230 transitions. [2021-02-21 18:55:08,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 18:55:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 230 transitions. [2021-02-21 18:55:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-21 18:55:08,253 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:08,253 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] [2021-02-21 18:55:08,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 18:55:08,254 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:08,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1037062442, now seen corresponding path program 1 times [2021-02-21 18:55:08,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:08,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895177597] [2021-02-21 18:55:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:08,259 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:08,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,777 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:08,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-21 18:55:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:55:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-21 18:55:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:08,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:08,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:08,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895177597] [2021-02-21 18:55:08,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:08,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 18:55:08,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067172991] [2021-02-21 18:55:08,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 18:55:08,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:08,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 18:55:08,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:55:08,896 INFO L87 Difference]: Start difference. First operand 215 states and 230 transitions. Second operand 4 states. [2021-02-21 18:55:09,597 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:55:10,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:10,270 INFO L93 Difference]: Finished difference Result 298 states and 331 transitions. [2021-02-21 18:55:10,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 18:55:10,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-21 18:55:10,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:10,275 INFO L225 Difference]: With dead ends: 298 [2021-02-21 18:55:10,275 INFO L226 Difference]: Without dead ends: 237 [2021-02-21 18:55:10,277 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 [2021-02-21 18:55:10,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-02-21 18:55:10,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 205. [2021-02-21 18:55:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2021-02-21 18:55:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 217 transitions. [2021-02-21 18:55:10,351 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 217 transitions. Word has length 159 [2021-02-21 18:55:10,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:10,352 INFO L480 AbstractCegarLoop]: Abstraction has 205 states and 217 transitions. [2021-02-21 18:55:10,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 18:55:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 217 transitions. [2021-02-21 18:55:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-02-21 18:55:10,355 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:10,355 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] [2021-02-21 18:55:10,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 18:55:10,356 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:10,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:10,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1162867319, now seen corresponding path program 1 times [2021-02-21 18:55:10,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:10,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418533871] [2021-02-21 18:55:10,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:10,360 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:10,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:10,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:10,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:10,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:55:10,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:55:10,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:55:10,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,802 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:10,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:55:10,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:55:10,910 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-21 18:55:10,911 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-21 18:55:10,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:55:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:55:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-02-21 18:55:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:11,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418533871] [2021-02-21 18:55:11,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:11,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:55:11,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064943684] [2021-02-21 18:55:11,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:55:11,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:11,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:55:11,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:55:11,008 INFO L87 Difference]: Start difference. First operand 205 states and 217 transitions. Second operand 9 states. [2021-02-21 18:55:11,596 WARN L202 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:12,067 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:55:12,428 WARN L202 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-21 18:55:12,772 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:13,134 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:13,483 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:14,482 WARN L202 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:55:15,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:15,941 INFO L93 Difference]: Finished difference Result 519 states and 592 transitions. [2021-02-21 18:55:15,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 18:55:15,942 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2021-02-21 18:55:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:15,946 INFO L225 Difference]: With dead ends: 519 [2021-02-21 18:55:15,947 INFO L226 Difference]: Without dead ends: 429 [2021-02-21 18:55:15,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-21 18:55:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-02-21 18:55:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 358. [2021-02-21 18:55:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2021-02-21 18:55:16,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 393 transitions. [2021-02-21 18:55:16,143 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 393 transitions. Word has length 168 [2021-02-21 18:55:16,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:16,144 INFO L480 AbstractCegarLoop]: Abstraction has 358 states and 393 transitions. [2021-02-21 18:55:16,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:55:16,144 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 393 transitions. [2021-02-21 18:55:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-21 18:55:16,147 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:16,147 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] [2021-02-21 18:55:16,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 18:55:16,148 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:16,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:16,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1556884908, now seen corresponding path program 1 times [2021-02-21 18:55:16,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:16,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811593667] [2021-02-21 18:55:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:16,152 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,549 WARN L202 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:16,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:55:16,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-02-21 18:55:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-02-21 18:55:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-02-21 18:55:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:16,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-21 18:55:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:16,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:16,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 18:55:16,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811593667] [2021-02-21 18:55:16,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:16,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 18:55:16,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831577951] [2021-02-21 18:55:16,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 18:55:16,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:16,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 18:55:16,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-02-21 18:55:16,713 INFO L87 Difference]: Start difference. First operand 358 states and 393 transitions. Second operand 8 states. [2021-02-21 18:55:17,305 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:18,776 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:19,154 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:19,542 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:19,935 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:20,282 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:20,667 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:21,009 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:21,424 INFO L93 Difference]: Finished difference Result 855 states and 999 transitions. [2021-02-21 18:55:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 18:55:21,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2021-02-21 18:55:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:21,430 INFO L225 Difference]: With dead ends: 855 [2021-02-21 18:55:21,431 INFO L226 Difference]: Without dead ends: 612 [2021-02-21 18:55:21,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-02-21 18:55:21,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2021-02-21 18:55:21,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 576. [2021-02-21 18:55:21,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2021-02-21 18:55:21,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 652 transitions. [2021-02-21 18:55:21,686 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 652 transitions. Word has length 171 [2021-02-21 18:55:21,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:21,687 INFO L480 AbstractCegarLoop]: Abstraction has 576 states and 652 transitions. [2021-02-21 18:55:21,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 18:55:21,687 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 652 transitions. [2021-02-21 18:55:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-02-21 18:55:21,690 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:21,691 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] [2021-02-21 18:55:21,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 18:55:21,691 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:21,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:21,692 INFO L82 PathProgramCache]: Analyzing trace with hash 290394781, now seen corresponding path program 1 times [2021-02-21 18:55:21,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:21,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932682153] [2021-02-21 18:55:21,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:21,695 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:55:21,770 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:55:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:55:21,862 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:55:22,103 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 18:55:22,103 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 18:55:22,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 18:55:22,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 06:55:22 BoogieIcfgContainer [2021-02-21 18:55:22,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 18:55:22,131 INFO L168 Benchmark]: Toolchain (without parser) took 19143.67 ms. Allocated memory was 153.1 MB in the beginning and 421.5 MB in the end (delta: 268.4 MB). Free memory was 128.5 MB in the beginning and 239.6 MB in the end (delta: -111.2 MB). Peak memory consumption was 158.4 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:22,131 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 153.1 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 18:55:22,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.53 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 107.3 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:22,132 INFO L168 Benchmark]: Boogie Preprocessor took 142.64 ms. Allocated memory is still 153.1 MB. Free memory was 107.3 MB in the beginning and 134.8 MB in the end (delta: -27.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:22,133 INFO L168 Benchmark]: RCFGBuilder took 1726.52 ms. Allocated memory is still 153.1 MB. Free memory was 134.8 MB in the beginning and 96.2 MB in the end (delta: 38.6 MB). Peak memory consumption was 65.9 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:22,134 INFO L168 Benchmark]: TraceAbstraction took 16786.47 ms. Allocated memory was 153.1 MB in the beginning and 421.5 MB in the end (delta: 268.4 MB). Free memory was 95.6 MB in the beginning and 239.6 MB in the end (delta: -144.0 MB). Peak memory consumption was 125.0 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:22,136 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 153.1 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 469.53 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 107.3 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 142.64 ms. Allocated memory is still 153.1 MB. Free memory was 107.3 MB in the beginning and 134.8 MB in the end (delta: -27.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1726.52 ms. Allocated memory is still 153.1 MB. Free memory was 134.8 MB in the beginning and 96.2 MB in the end (delta: 38.6 MB). Peak memory consumption was 65.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16786.47 ms. Allocated memory was 153.1 MB in the beginning and 421.5 MB in the end (delta: 268.4 MB). Free memory was 95.6 MB in the beginning and 239.6 MB in the end (delta: -144.0 MB). Peak memory consumption was 125.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 652]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L121] int pumpRunning = 0; [L122] int systemActive = 1; [L413] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L692] int cleanupTimeShifts = 4; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L765] int retValue_acc ; [L766] int tmp ; [L770] FCALL select_helpers() [L771] FCALL select_features() [L772] CALL, EXPR valid_product() [L639] int retValue_acc ; [L642] retValue_acc = 1 [L643] return (retValue_acc); [L772] RET, EXPR valid_product() [L772] tmp = valid_product() [L774] COND TRUE \read(tmp) [L776] FCALL setup() [L777] CALL runTest() [L759] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L806] COND TRUE waterLevel < 2 [L807] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) [L102] CALL timeShift() [L129] COND FALSE !(\read(pumpRunning)) [L136] COND TRUE \read(systemActive) [L138] FCALL processEnvironment() [L144] CALL __utac_acc__Specification3_spec__1() [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L665] CALL, EXPR isMethaneLevelCritical() [L827] int retValue_acc ; [L830] retValue_acc = methaneLevelCritical [L831] return (retValue_acc); [L665] RET, EXPR isMethaneLevelCritical() [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L671] CALL, EXPR getWaterLevel() [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L671] RET, EXPR getWaterLevel() [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L675] CALL, EXPR isPumpRunning() [L184] int retValue_acc ; [L187] retValue_acc = pumpRunning [L188] return (retValue_acc); [L675] RET, EXPR isPumpRunning() [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) [L681] CALL __automaton_fail() [L652] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 593 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 799 SDtfs, 858 SDslu, 1240 SDs, 0 SdLazy, 2112 SolverSat, 284 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=576occurred 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: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 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...