/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-b7b32d2 [2021-02-21 18:55:05,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 18:55:05,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 18:55:05,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 18:55:05,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 18:55:05,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 18:55:05,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 18:55:05,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 18:55:05,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 18:55:05,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 18:55:05,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 18:55:05,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 18:55:05,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 18:55:05,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 18:55:05,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 18:55:05,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 18:55:05,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 18:55:05,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 18:55:05,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 18:55:05,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 18:55:05,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 18:55:05,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 18:55:05,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 18:55:05,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 18:55:05,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 18:55:05,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 18:55:05,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 18:55:05,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 18:55:05,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 18:55:06,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 18:55:06,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 18:55:06,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 18:55:06,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 18:55:06,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 18:55:06,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 18:55:06,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 18:55:06,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 18:55:06,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 18:55:06,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 18:55:06,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 18:55:06,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 18:55:06,009 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 18:55:06,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 18:55:06,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 18:55:06,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 18:55:06,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 18:55:06,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 18:55:06,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 18:55:06,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 18:55:06,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 18:55:06,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 18:55:06,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 18:55:06,043 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 18:55:06,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 18:55:06,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 18:55:06,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 18:55:06,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 18:55:06,044 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 18:55:06,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 18:55:06,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 18:55:06,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 18:55:06,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 18:55:06,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 18:55:06,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 18:55:06,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 18:55:06,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 18:55:06,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 18:55:06,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 18:55:06,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 18:55:06,473 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 18:55:06,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-21 18:55:06,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df63f71ae/abeeced57c744646bc541b9899cf5043/FLAGef28dc102 [2021-02-21 18:55:07,224 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 18:55:07,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2021-02-21 18:55:07,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df63f71ae/abeeced57c744646bc541b9899cf5043/FLAGef28dc102 [2021-02-21 18:55:07,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df63f71ae/abeeced57c744646bc541b9899cf5043 [2021-02-21 18:55:07,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 18:55:07,573 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 18:55:07,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 18:55:07,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 18:55:07,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 18:55:07,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:55:07" (1/1) ... [2021-02-21 18:55:07,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a4d408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:07, skipping insertion in model container [2021-02-21 18:55:07,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 06:55:07" (1/1) ... [2021-02-21 18:55:07,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 18:55:07,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 18:55:08,058 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] [2021-02-21 18:55:08,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:55:08,090 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 18:55:08,151 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] [2021-02-21 18:55:08,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 18:55:08,202 INFO L208 MainTranslator]: Completed translation [2021-02-21 18:55:08,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08 WrapperNode [2021-02-21 18:55:08,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 18:55:08,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 18:55:08,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 18:55:08,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 18:55:08,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (1/1) ... [2021-02-21 18:55:08,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (1/1) ... [2021-02-21 18:55:08,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (1/1) ... [2021-02-21 18:55:08,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (1/1) ... [2021-02-21 18:55:08,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (1/1) ... [2021-02-21 18:55:08,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (1/1) ... [2021-02-21 18:55:08,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (1/1) ... [2021-02-21 18:55:08,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 18:55:08,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 18:55:08,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 18:55:08,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 18:55:08,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (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 18:55:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 18:55:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 18:55:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-21 18:55:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 18:55:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-21 18:55:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-21 18:55:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-21 18:55:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-21 18:55:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-21 18:55:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-21 18:55:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-21 18:55:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-21 18:55:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-21 18:55:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-21 18:55:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-21 18:55:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-21 18:55:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-21 18:55:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-21 18:55:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-21 18:55:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-21 18:55:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-21 18:55:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-21 18:55:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-21 18:55:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-21 18:55:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 18:55:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-21 18:55:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:55:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-21 18:55:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-21 18:55:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-21 18:55:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-21 18:55:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-21 18:55:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-21 18:55:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-21 18:55:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-21 18:55:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-21 18:55:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-21 18:55:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 18:55:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 18:55:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 18:55:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 18:55:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 18:55:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-21 18:55:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-21 18:55:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-21 18:55:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-21 18:55:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-21 18:55:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-21 18:55:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-21 18:55:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 18:55:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 18:55:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-21 18:55:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 18:55:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 18:55:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 18:55:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 18:55:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-21 18:55:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 18:55:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-21 18:55:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-21 18:55:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 18:55:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-21 18:55:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-21 18:55:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-21 18:55:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-21 18:55:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-21 18:55:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-21 18:55:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-21 18:55:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-21 18:55:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-21 18:55:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-21 18:55:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-21 18:55:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-21 18:55:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-21 18:55:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-21 18:55:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 18:55:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-21 18:55:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-21 18:55:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-21 18:55:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-21 18:55:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-21 18:55:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-21 18:55:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-21 18:55:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-21 18:55:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-21 18:55:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 18:55:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 18:55:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 18:55:09,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 18:55:09,912 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-21 18:55:09,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:55:09 BoogieIcfgContainer [2021-02-21 18:55:09,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 18:55:09,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 18:55:09,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 18:55:09,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 18:55:09,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 06:55:07" (1/3) ... [2021-02-21 18:55:09,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c9e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:55:09, skipping insertion in model container [2021-02-21 18:55:09,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 06:55:08" (2/3) ... [2021-02-21 18:55:09,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c9e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 06:55:09, skipping insertion in model container [2021-02-21 18:55:09,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 06:55:09" (3/3) ... [2021-02-21 18:55:09,924 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2021-02-21 18:55:09,931 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 18:55:09,937 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 18:55:09,956 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 18:55:09,980 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 18:55:09,980 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 18:55:09,980 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 18:55:09,981 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 18:55:09,981 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 18:55:09,981 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 18:55:09,981 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 18:55:09,981 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 18:55:10,004 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2021-02-21 18:55:10,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-21 18:55:10,026 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:10,028 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 18:55:10,028 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:10,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1280139405, now seen corresponding path program 1 times [2021-02-21 18:55:10,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:10,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643499464] [2021-02-21 18:55:10,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:10,125 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,504 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 18:55:10,801 WARN L202 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:10,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,933 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 94 [2021-02-21 18:55:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-21 18:55:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:55:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:10,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-21 18:55:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:10,984 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:10,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:11,031 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 18:55:11,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643499464] [2021-02-21 18:55:11,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:11,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 18:55:11,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601475968] [2021-02-21 18:55:11,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 18:55:11,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:11,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 18:55:11,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:55:11,062 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 3 states. [2021-02-21 18:55:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:12,518 INFO L93 Difference]: Finished difference Result 400 states and 477 transitions. [2021-02-21 18:55:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 18:55:12,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-21 18:55:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:12,548 INFO L225 Difference]: With dead ends: 400 [2021-02-21 18:55:12,548 INFO L226 Difference]: Without dead ends: 259 [2021-02-21 18:55:12,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 18:55:12,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-02-21 18:55:12,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 219. [2021-02-21 18:55:12,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-02-21 18:55:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 234 transitions. [2021-02-21 18:55:12,718 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 234 transitions. Word has length 158 [2021-02-21 18:55:12,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:12,719 INFO L480 AbstractCegarLoop]: Abstraction has 219 states and 234 transitions. [2021-02-21 18:55:12,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 18:55:12,719 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 234 transitions. [2021-02-21 18:55:12,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-21 18:55:12,724 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:12,724 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 18:55:12,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 18:55:12,725 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:12,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:12,726 INFO L82 PathProgramCache]: Analyzing trace with hash -987385386, now seen corresponding path program 1 times [2021-02-21 18:55:12,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:12,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995626067] [2021-02-21 18:55:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:12,731 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:12,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:12,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:12,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:12,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:12,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:12,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,162 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:13,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-21 18:55:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-21 18:55:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-21 18:55:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:13,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:13,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:13,339 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 18:55:13,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995626067] [2021-02-21 18:55:13,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:13,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 18:55:13,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408162011] [2021-02-21 18:55:13,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 18:55:13,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:13,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 18:55:13,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 18:55:13,343 INFO L87 Difference]: Start difference. First operand 219 states and 234 transitions. Second operand 4 states. [2021-02-21 18:55:14,112 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:55:14,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:14,844 INFO L93 Difference]: Finished difference Result 303 states and 337 transitions. [2021-02-21 18:55:14,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 18:55:14,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-21 18:55:14,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:14,849 INFO L225 Difference]: With dead ends: 303 [2021-02-21 18:55:14,849 INFO L226 Difference]: Without dead ends: 242 [2021-02-21 18:55:14,851 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 18:55:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-02-21 18:55:14,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 209. [2021-02-21 18:55:14,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-02-21 18:55:14,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 221 transitions. [2021-02-21 18:55:14,938 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 221 transitions. Word has length 159 [2021-02-21 18:55:14,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:14,939 INFO L480 AbstractCegarLoop]: Abstraction has 209 states and 221 transitions. [2021-02-21 18:55:14,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 18:55:14,939 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 221 transitions. [2021-02-21 18:55:14,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-21 18:55:14,948 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:14,948 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] [2021-02-21 18:55:14,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 18:55:14,949 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:14,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:14,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1527823238, now seen corresponding path program 1 times [2021-02-21 18:55:14,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:14,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355409853] [2021-02-21 18:55:14,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:14,964 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:15,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:15,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 18:55:15,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,640 WARN L202 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:55:15,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 18:55:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 18:55:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:15,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-21 18:55:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-21 18:55:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-21 18:55:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:15,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:15,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:15,933 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 18:55:15,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355409853] [2021-02-21 18:55:15,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:15,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 18:55:15,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896212758] [2021-02-21 18:55:15,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 18:55:15,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:15,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 18:55:15,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-21 18:55:15,942 INFO L87 Difference]: Start difference. First operand 209 states and 221 transitions. Second operand 10 states. [2021-02-21 18:55:16,543 WARN L202 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:16,966 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-21 18:55:17,327 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-21 18:55:17,701 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:18,081 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:18,414 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:19,482 WARN L202 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-21 18:55:21,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:21,204 INFO L93 Difference]: Finished difference Result 555 states and 643 transitions. [2021-02-21 18:55:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 18:55:21,204 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-21 18:55:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:21,211 INFO L225 Difference]: With dead ends: 555 [2021-02-21 18:55:21,211 INFO L226 Difference]: Without dead ends: 461 [2021-02-21 18:55:21,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-21 18:55:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2021-02-21 18:55:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 362. [2021-02-21 18:55:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2021-02-21 18:55:21,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 397 transitions. [2021-02-21 18:55:21,361 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 397 transitions. Word has length 172 [2021-02-21 18:55:21,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:21,361 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 397 transitions. [2021-02-21 18:55:21,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 18:55:21,362 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 397 transitions. [2021-02-21 18:55:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-02-21 18:55:21,364 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:21,365 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] [2021-02-21 18:55:21,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 18:55:21,365 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:21,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:21,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1067126703, now seen corresponding path program 1 times [2021-02-21 18:55:21,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:21,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850179523] [2021-02-21 18:55:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:21,370 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,773 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-21 18:55:21,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 18:55:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 18:55:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-21 18:55:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-21 18:55:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-21 18:55:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-21 18:55:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-21 18:55:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-21 18:55:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-02-21 18:55:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-02-21 18:55:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 18:55:21,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-02-21 18:55:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 18:55:21,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 18:55:21,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 18:55:21,941 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 18:55:21,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850179523] [2021-02-21 18:55:21,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 18:55:21,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-21 18:55:21,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197004473] [2021-02-21 18:55:21,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-21 18:55:21,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 18:55:21,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-21 18:55:21,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-21 18:55:21,944 INFO L87 Difference]: Start difference. First operand 362 states and 397 transitions. Second operand 9 states. [2021-02-21 18:55:22,553 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:24,165 WARN L202 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:24,520 WARN L202 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:24,936 WARN L202 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:25,357 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-21 18:55:25,698 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-21 18:55:26,054 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:26,404 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-21 18:55:27,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 18:55:27,040 INFO L93 Difference]: Finished difference Result 914 states and 1082 transitions. [2021-02-21 18:55:27,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-21 18:55:27,041 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2021-02-21 18:55:27,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 18:55:27,047 INFO L225 Difference]: With dead ends: 914 [2021-02-21 18:55:27,048 INFO L226 Difference]: Without dead ends: 667 [2021-02-21 18:55:27,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-21 18:55:27,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-02-21 18:55:27,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 584. [2021-02-21 18:55:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2021-02-21 18:55:27,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 660 transitions. [2021-02-21 18:55:27,381 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 660 transitions. Word has length 175 [2021-02-21 18:55:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 18:55:27,383 INFO L480 AbstractCegarLoop]: Abstraction has 584 states and 660 transitions. [2021-02-21 18:55:27,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-21 18:55:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 660 transitions. [2021-02-21 18:55:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-02-21 18:55:27,389 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 18:55:27,389 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] [2021-02-21 18:55:27,390 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-21 18:55:27,390 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 18:55:27,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 18:55:27,390 INFO L82 PathProgramCache]: Analyzing trace with hash -2145354115, now seen corresponding path program 1 times [2021-02-21 18:55:27,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 18:55:27,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578693074] [2021-02-21 18:55:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 18:55:27,398 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 18:55:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:55:27,494 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:55:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 18:55:27,613 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 18:55:27,900 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 18:55:27,901 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 18:55:27,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-21 18:55:27,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 06:55:27 BoogieIcfgContainer [2021-02-21 18:55:27,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 18:55:27,932 INFO L168 Benchmark]: Toolchain (without parser) took 20371.96 ms. Allocated memory was 152.0 MB in the beginning and 436.2 MB in the end (delta: 284.2 MB). Free memory was 126.3 MB in the beginning and 292.4 MB in the end (delta: -166.1 MB). Peak memory consumption was 119.1 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:27,933 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 18:55:27,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.35 ms. Allocated memory is still 152.0 MB. Free memory was 125.2 MB in the beginning and 105.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:27,936 INFO L168 Benchmark]: Boogie Preprocessor took 126.71 ms. Allocated memory is still 152.0 MB. Free memory was 105.7 MB in the beginning and 133.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:27,936 INFO L168 Benchmark]: RCFGBuilder took 1583.80 ms. Allocated memory was 152.0 MB in the beginning and 187.7 MB in the end (delta: 35.7 MB). Free memory was 133.3 MB in the beginning and 152.2 MB in the end (delta: -19.0 MB). Peak memory consumption was 89.1 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:27,937 INFO L168 Benchmark]: TraceAbstraction took 18014.27 ms. Allocated memory was 187.7 MB in the beginning and 436.2 MB in the end (delta: 248.5 MB). Free memory was 152.2 MB in the beginning and 292.4 MB in the end (delta: -140.1 MB). Peak memory consumption was 108.4 MB. Max. memory is 8.0 GB. [2021-02-21 18:55:27,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 152.0 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 623.35 ms. Allocated memory is still 152.0 MB. Free memory was 125.2 MB in the beginning and 105.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 126.71 ms. Allocated memory is still 152.0 MB. Free memory was 105.7 MB in the beginning and 133.3 MB in the end (delta: -27.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1583.80 ms. Allocated memory was 152.0 MB in the beginning and 187.7 MB in the end (delta: 35.7 MB). Free memory was 133.3 MB in the beginning and 152.2 MB in the end (delta: -19.0 MB). Peak memory consumption was 89.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18014.27 ms. Allocated memory was 187.7 MB in the beginning and 436.2 MB in the end (delta: 248.5 MB). Free memory was 152.2 MB in the beginning and 292.4 MB in the end (delta: -140.1 MB). Peak memory consumption was 108.4 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: 17.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.4s, 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, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 6.9s 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: 0.7s 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...