/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:03:06,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:03:06,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:03:06,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:03:06,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:03:06,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:03:06,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:03:06,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:03:06,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:03:06,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:03:06,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:03:06,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:03:06,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:03:06,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:03:06,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:03:06,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:03:06,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:03:06,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:03:06,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:03:06,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:03:06,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:03:06,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:03:06,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:03:06,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:03:06,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:03:06,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:03:06,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:03:06,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:03:06,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:03:06,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:03:06,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:03:06,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:03:06,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:03:06,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:03:06,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:03:06,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:03:06,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:03:06,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:03:06,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:03:06,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:03:06,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:03:06,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:03:06,872 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:03:06,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:03:06,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:03:06,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:03:06,874 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:03:06,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:03:06,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:03:06,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:03:06,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:03:06,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:03:06,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:03:06,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:03:06,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:03:06,879 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:03:06,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:03:06,879 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:03:06,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:03:06,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:03:06,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:03:06,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:03:06,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:03:06,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:03:06,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:03:06,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:03:06,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:03:06,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:03:06,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:03:06,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:03:06,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:03:07,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:03:07,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:03:07,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:03:07,311 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:03:07,314 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:03:07,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2021-02-19 17:03:07,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f258594e/779473e24b184995828b503f4d278341/FLAG2e4b9478c [2021-02-19 17:03:08,129 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:03:08,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2021-02-19 17:03:08,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f258594e/779473e24b184995828b503f4d278341/FLAG2e4b9478c [2021-02-19 17:03:08,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f258594e/779473e24b184995828b503f4d278341 [2021-02-19 17:03:08,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:03:08,422 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:03:08,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:03:08,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:03:08,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:03:08,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:08,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7280357e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08, skipping insertion in model container [2021-02-19 17:03:08,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:08,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:03:08,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:03:08,682 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_product01.cil.c[4729,4742] [2021-02-19 17:03:08,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:03:08,811 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:03:08,874 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_product01.cil.c[4729,4742] [2021-02-19 17:03:08,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:03:08,992 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:03:08,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08 WrapperNode [2021-02-19 17:03:08,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:03:08,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:03:08,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:03:08,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:03:09,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:09,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:09,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:09,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:09,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:09,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:09,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (1/1) ... [2021-02-19 17:03:09,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:03:09,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:03:09,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:03:09,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:03:09,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (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 [2021-02-19 17:03:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:03:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:03:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:03:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:03:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:03:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:03:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:03:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:03:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:03:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:03:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:03:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:03:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:03:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:03:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:03:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:03:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:03:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:03:09,178 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:03:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:03:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:03:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:03:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:03:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:03:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:03:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:03:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:03:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:03:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:03:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:03:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:03:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:03:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:03:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:03:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:03:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:03:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:03:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:03:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:03:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:03:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:03:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:03:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:03:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:03:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:03:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:03:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:03:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:03:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:03:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:03:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:03:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:03:09,216 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:03:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:03:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:03:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:03:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:03:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:03:09,217 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:03:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:03:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:03:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:03:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:03:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:03:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:03:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:03:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:03:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:03:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:03:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:03:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:03:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:03:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:03:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:03:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:03:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:03:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:03:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:03:09,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:03:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:03:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:03:09,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:03:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:03:09,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:03:10,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:03:10,460 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:03:10,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:03:10 BoogieIcfgContainer [2021-02-19 17:03:10,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:03:10,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:03:10,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:03:10,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:03:10,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:03:08" (1/3) ... [2021-02-19 17:03:10,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e399590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:03:10, skipping insertion in model container [2021-02-19 17:03:10,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:08" (2/3) ... [2021-02-19 17:03:10,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e399590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:03:10, skipping insertion in model container [2021-02-19 17:03:10,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:03:10" (3/3) ... [2021-02-19 17:03:10,471 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2021-02-19 17:03:10,478 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:03:10,484 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:03:10,503 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:03:10,531 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:03:10,531 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:03:10,531 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:03:10,531 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:03:10,532 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:03:10,532 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:03:10,532 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:03:10,532 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:03:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2021-02-19 17:03:10,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:03:10,563 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:10,564 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] [2021-02-19 17:03:10,564 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:10,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:10,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1965797047, now seen corresponding path program 1 times [2021-02-19 17:03:10,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:10,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047998489] [2021-02-19 17:03:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,423 WARN L202 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:11,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:03:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:03:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:03:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:11,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:11,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:11,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047998489] [2021-02-19 17:03:11,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:11,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:03:11,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719961002] [2021-02-19 17:03:11,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:03:11,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:11,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:03:11,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:03:11,619 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 3 states. [2021-02-19 17:03:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:12,749 INFO L93 Difference]: Finished difference Result 211 states and 284 transitions. [2021-02-19 17:03:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:03:12,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:03:12,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:12,765 INFO L225 Difference]: With dead ends: 211 [2021-02-19 17:03:12,765 INFO L226 Difference]: Without dead ends: 115 [2021-02-19 17:03:12,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:03:12,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-02-19 17:03:12,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 87. [2021-02-19 17:03:12,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2021-02-19 17:03:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2021-02-19 17:03:12,851 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 52 [2021-02-19 17:03:12,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:12,852 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2021-02-19 17:03:12,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:03:12,853 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2021-02-19 17:03:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:03:12,856 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:12,856 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] [2021-02-19 17:03:12,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:03:12,857 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:12,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:12,858 INFO L82 PathProgramCache]: Analyzing trace with hash -256811988, now seen corresponding path program 1 times [2021-02-19 17:03:12,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:12,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910393598] [2021-02-19 17:03:12,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:13,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,378 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:13,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:03:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:03:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:03:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:13,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:13,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:13,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:13,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910393598] [2021-02-19 17:03:13,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:13,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:03:13,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779287014] [2021-02-19 17:03:13,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:03:13,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:13,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:03:13,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:03:13,451 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand 4 states. [2021-02-19 17:03:14,007 WARN L202 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:03:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:14,591 INFO L93 Difference]: Finished difference Result 144 states and 175 transitions. [2021-02-19 17:03:14,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:03:14,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:03:14,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:14,598 INFO L225 Difference]: With dead ends: 144 [2021-02-19 17:03:14,599 INFO L226 Difference]: Without dead ends: 99 [2021-02-19 17:03:14,600 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 [2021-02-19 17:03:14,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-19 17:03:14,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2021-02-19 17:03:14,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-02-19 17:03:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2021-02-19 17:03:14,663 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 53 [2021-02-19 17:03:14,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:14,664 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2021-02-19 17:03:14,664 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:03:14,664 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2021-02-19 17:03:14,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:03:14,674 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:14,674 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] [2021-02-19 17:03:14,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:03:14,675 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:14,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:14,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1451234800, now seen corresponding path program 1 times [2021-02-19 17:03:14,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:14,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093621439] [2021-02-19 17:03:14,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:14,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:14,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:14,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:14,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:14,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:14,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:14,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:14,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:03:14,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:14,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:15,088 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:15,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:03:15,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:15,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:15,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:15,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:15,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:03:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:15,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:03:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:15,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:03:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:15,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:15,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:15,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093621439] [2021-02-19 17:03:15,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:15,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:03:15,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316596837] [2021-02-19 17:03:15,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:03:15,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:15,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:03:15,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:03:15,223 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 8 states. [2021-02-19 17:03:15,759 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:03:16,142 WARN L202 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:16,526 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:16,887 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:17,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:17,692 INFO L93 Difference]: Finished difference Result 153 states and 189 transitions. [2021-02-19 17:03:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 17:03:17,693 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 17:03:17,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:17,696 INFO L225 Difference]: With dead ends: 153 [2021-02-19 17:03:17,696 INFO L226 Difference]: Without dead ends: 99 [2021-02-19 17:03:17,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-19 17:03:17,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-19 17:03:17,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2021-02-19 17:03:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-02-19 17:03:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2021-02-19 17:03:17,744 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 57 [2021-02-19 17:03:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:17,745 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2021-02-19 17:03:17,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:03:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2021-02-19 17:03:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-02-19 17:03:17,746 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:17,746 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] [2021-02-19 17:03:17,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:03:17,747 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:17,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:17,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1718166163, now seen corresponding path program 1 times [2021-02-19 17:03:17,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:17,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904231594] [2021-02-19 17:03:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:17,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:17,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:17,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:17,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:17,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:17,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:17,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:17,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:17,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,209 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:18,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:03:18,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-02-19 17:03:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-19 17:03:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 17:03:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:18,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-19 17:03:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:18,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:18,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:18,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904231594] [2021-02-19 17:03:18,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:18,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 17:03:18,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016009537] [2021-02-19 17:03:18,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 17:03:18,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:18,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 17:03:18,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-02-19 17:03:18,377 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 7 states. [2021-02-19 17:03:18,884 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:03:19,903 WARN L202 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:20,354 WARN L202 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:20,726 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:21,113 WARN L202 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:03:21,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:21,412 INFO L93 Difference]: Finished difference Result 196 states and 245 transitions. [2021-02-19 17:03:21,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 17:03:21,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2021-02-19 17:03:21,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:21,419 INFO L225 Difference]: With dead ends: 196 [2021-02-19 17:03:21,419 INFO L226 Difference]: Without dead ends: 142 [2021-02-19 17:03:21,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-02-19 17:03:21,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-02-19 17:03:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2021-02-19 17:03:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2021-02-19 17:03:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2021-02-19 17:03:21,466 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 60 [2021-02-19 17:03:21,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:21,467 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2021-02-19 17:03:21,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 17:03:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2021-02-19 17:03:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-02-19 17:03:21,469 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:21,469 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] [2021-02-19 17:03:21,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:03:21,469 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:21,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash 108906247, now seen corresponding path program 1 times [2021-02-19 17:03:21,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:21,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54059860] [2021-02-19 17:03:21,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:21,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,854 WARN L202 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:21,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:21,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-02-19 17:03:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:03:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:03:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-19 17:03:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-02-19 17:03:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:21,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:21,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:21,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54059860] [2021-02-19 17:03:21,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:21,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:03:21,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455987583] [2021-02-19 17:03:21,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:03:21,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:21,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:03:21,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:03:21,956 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 5 states. [2021-02-19 17:03:22,451 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:03:23,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:23,016 INFO L93 Difference]: Finished difference Result 192 states and 233 transitions. [2021-02-19 17:03:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 17:03:23,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2021-02-19 17:03:23,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:23,018 INFO L225 Difference]: With dead ends: 192 [2021-02-19 17:03:23,019 INFO L226 Difference]: Without dead ends: 127 [2021-02-19 17:03:23,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-19 17:03:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-02-19 17:03:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 115. [2021-02-19 17:03:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-02-19 17:03:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2021-02-19 17:03:23,054 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 64 [2021-02-19 17:03:23,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:23,055 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2021-02-19 17:03:23,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:03:23,055 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2021-02-19 17:03:23,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-02-19 17:03:23,056 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:23,056 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] [2021-02-19 17:03:23,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:03:23,057 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:23,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:23,057 INFO L82 PathProgramCache]: Analyzing trace with hash 2014722343, now seen corresponding path program 1 times [2021-02-19 17:03:23,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:23,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432214420] [2021-02-19 17:03:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:03:23,170 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:03:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:03:23,249 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:03:23,350 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:03:23,350 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:03:23,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 17:03:23,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:03:23 BoogieIcfgContainer [2021-02-19 17:03:23,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:03:23,516 INFO L168 Benchmark]: Toolchain (without parser) took 15105.03 ms. Allocated memory was 154.1 MB in the beginning and 348.1 MB in the end (delta: 194.0 MB). Free memory was 128.9 MB in the beginning and 266.0 MB in the end (delta: -137.0 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:23,516 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:03:23,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.91 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 108.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:23,517 INFO L168 Benchmark]: Boogie Preprocessor took 86.80 ms. Allocated memory is still 154.1 MB. Free memory was 108.5 MB in the beginning and 104.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:23,518 INFO L168 Benchmark]: RCFGBuilder took 1380.49 ms. Allocated memory is still 154.1 MB. Free memory was 104.8 MB in the beginning and 58.6 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:23,518 INFO L168 Benchmark]: TraceAbstraction took 13050.14 ms. Allocated memory was 154.1 MB in the beginning and 348.1 MB in the end (delta: 194.0 MB). Free memory was 58.1 MB in the beginning and 266.0 MB in the end (delta: -207.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:03:23,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 154.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 569.91 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 108.5 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.80 ms. Allocated memory is still 154.1 MB. Free memory was 108.5 MB in the beginning and 104.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1380.49 ms. Allocated memory is still 154.1 MB. Free memory was 104.8 MB in the beginning and 58.6 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13050.14 ms. Allocated memory was 154.1 MB in the beginning and 348.1 MB in the end (delta: 194.0 MB). Free memory was 58.1 MB in the beginning and 266.0 MB in the end (delta: -207.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 304]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int pumpRunning = 0; [L51] int systemActive = 1; [L309] int cleanupTimeShifts = 4; [L405] int waterLevel = 1; [L406] int methaneLevelCritical = 0; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=180, \old(head)=182, \old(head)=170, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] int retValue_acc ; [L383] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L387] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L388] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L389] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L255] int retValue_acc ; [L258] retValue_acc = 1 [L259] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L389] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L389] tmp = valid_product() [L391] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L393] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L394] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L376] CALL test() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L162] int splverifierCounter ; [L163] int tmp ; [L164] int tmp___0 ; [L165] int tmp___1 ; [L166] int tmp___2 ; [L169] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L171] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L173] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L179] tmp = __VERIFIER_nondet_int() [L181] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L183] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE waterLevel < 2 [L424] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L189] tmp___0 = __VERIFIER_nondet_int() [L191] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L199] tmp___2 = __VERIFIER_nondet_int() [L201] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L214] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L58] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L65] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L444] int retValue_acc ; [L447] retValue_acc = methaneLevelCritical [L448] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L273] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] tmp = isMethaneLevelCritical() [L275] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L279] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L476] int retValue_acc ; [L479] retValue_acc = waterLevel [L480] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L279] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L279] tmp___0 = getWaterLevel() [L281] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L283] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] int retValue_acc ; [L116] retValue_acc = pumpRunning [L117] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L283] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L283] tmp___1 = isPumpRunning() [L285] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L289] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L304] reach_error() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 200 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 465 SDslu, 196 SDs, 0 SdLazy, 957 SolverSat, 249 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 281 ConstructedInterpolants, 0 QuantifiedInterpolants, 83486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...