/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_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:04:04,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:04:04,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:04:04,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:04:04,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:04:04,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:04:04,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:04:04,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:04:04,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:04:04,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:04:04,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:04:04,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:04:04,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:04:04,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:04:04,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:04:04,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:04:04,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:04:04,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:04:04,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:04:04,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:04:04,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:04:04,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:04:04,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:04:04,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:04:04,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:04:04,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:04:04,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:04:04,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:04:04,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:04:04,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:04:04,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:04:04,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:04:04,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:04:04,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:04:04,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:04:04,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:04:04,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:04:04,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:04:04,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:04:04,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:04:04,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:04:04,224 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 17:04:04,278 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:04:04,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:04:04,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:04:04,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:04:04,283 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:04:04,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:04:04,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:04:04,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:04:04,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:04:04,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:04:04,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:04:04,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:04:04,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:04:04,286 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:04:04,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:04:04,286 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:04:04,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:04:04,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:04:04,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:04:04,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:04:04,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:04:04,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:04:04,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:04:04,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:04:04,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:04:04,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:04:04,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:04:04,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:04:04,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:04:04,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:04:04,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:04:04,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:04:04,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:04:04,775 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:04:04,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2021-02-19 17:04:04,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/383051e51/82b892bf9e2946d7ac7ae9356217a889/FLAG27dee4490 [2021-02-19 17:04:05,652 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:04:05,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2021-02-19 17:04:05,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/383051e51/82b892bf9e2946d7ac7ae9356217a889/FLAG27dee4490 [2021-02-19 17:04:05,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/383051e51/82b892bf9e2946d7ac7ae9356217a889 [2021-02-19 17:04:05,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:04:05,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:04:05,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:05,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:04:05,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:04:05,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:05" (1/1) ... [2021-02-19 17:04:05,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d867f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:05, skipping insertion in model container [2021-02-19 17:04:05,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:04:05" (1/1) ... [2021-02-19 17:04:05,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:04:05,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:04:06,368 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_product15.cil.c[16852,16865] [2021-02-19 17:04:06,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:06,415 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:04:06,587 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_product15.cil.c[16852,16865] [2021-02-19 17:04:06,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:04:06,641 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:04:06,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06 WrapperNode [2021-02-19 17:04:06,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:04:06,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:04:06,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:04:06,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:04:06,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (1/1) ... [2021-02-19 17:04:06,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (1/1) ... [2021-02-19 17:04:06,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (1/1) ... [2021-02-19 17:04:06,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (1/1) ... [2021-02-19 17:04:06,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (1/1) ... [2021-02-19 17:04:06,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (1/1) ... [2021-02-19 17:04:06,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (1/1) ... [2021-02-19 17:04:06,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:04:06,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:04:06,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:04:06,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:04:06,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (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 17:04:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:04:06,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:04:06,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:06,934 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:04:06,934 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:04:06,934 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-02-19 17:04:06,935 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:04:06,935 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2021-02-19 17:04:06,935 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:04:06,936 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:04:06,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:04:06,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:04:06,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:04:06,938 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 17:04:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:04:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:04:06,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:04:06,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:04:06,940 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:04:06,940 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:04:06,940 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:04:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:04:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:04:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:04:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:04:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:04:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:04:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:04:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:04:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:04:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:04:06,942 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:04:06,943 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:04:06,943 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:04:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:04:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:04:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:04:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:04:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:04:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:04:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:04:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:04:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:04:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:04:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:04:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:04:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:04:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:04:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 17:04:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:04:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:04:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-02-19 17:04:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:04:06,946 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2021-02-19 17:04:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:04:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:04:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:04:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:04:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:04:06,947 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:04:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:04:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:04:06,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:04:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:04:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:04:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:04:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:04:06,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:04:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:04:06,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:04:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:04:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:04:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:04:06,951 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:04:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:04:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:04:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:04:06,952 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:04:06,953 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:04:06,953 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:04:06,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:04:06,955 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:04:06,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:04:06,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:04:06,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:04:06,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:04:08,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:04:08,570 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:04:08,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:08 BoogieIcfgContainer [2021-02-19 17:04:08,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:04:08,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:04:08,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:04:08,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:04:08,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:04:05" (1/3) ... [2021-02-19 17:04:08,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea470e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:08, skipping insertion in model container [2021-02-19 17:04:08,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:04:06" (2/3) ... [2021-02-19 17:04:08,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea470e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:04:08, skipping insertion in model container [2021-02-19 17:04:08,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:04:08" (3/3) ... [2021-02-19 17:04:08,590 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2021-02-19 17:04:08,598 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:04:08,604 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:04:08,629 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:04:08,662 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:04:08,662 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:04:08,662 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:04:08,663 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:04:08,663 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:04:08,663 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:04:08,663 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:04:08,663 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:04:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2021-02-19 17:04:08,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:04:08,717 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:08,719 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 17:04:08,719 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:08,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1128537818, now seen corresponding path program 1 times [2021-02-19 17:04:08,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:08,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910850222] [2021-02-19 17:04:08,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,798 WARN L202 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:09,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:04:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:04:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:04:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:09,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:09,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:09,897 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 17:04:09,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910850222] [2021-02-19 17:04:09,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:09,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:04:09,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564324112] [2021-02-19 17:04:09,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:04:09,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:09,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:04:09,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:04:09,923 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2021-02-19 17:04:11,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:11,587 INFO L93 Difference]: Finished difference Result 263 states and 350 transitions. [2021-02-19 17:04:11,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:04:11,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:04:11,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:11,612 INFO L225 Difference]: With dead ends: 263 [2021-02-19 17:04:11,612 INFO L226 Difference]: Without dead ends: 143 [2021-02-19 17:04:11,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:04:11,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-02-19 17:04:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 111. [2021-02-19 17:04:11,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2021-02-19 17:04:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2021-02-19 17:04:11,712 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2021-02-19 17:04:11,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:11,713 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2021-02-19 17:04:11,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:04:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2021-02-19 17:04:11,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:04:11,717 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:11,717 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 17:04:11,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:04:11,718 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:11,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:11,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1194844183, now seen corresponding path program 1 times [2021-02-19 17:04:11,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:11,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548259407] [2021-02-19 17:04:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:11,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:11,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:11,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:11,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:11,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:11,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,165 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:12,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:04:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:04:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:12,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:12,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:12,234 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 17:04:12,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548259407] [2021-02-19 17:04:12,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:12,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:04:12,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995310149] [2021-02-19 17:04:12,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:04:12,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:12,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:04:12,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:04:12,238 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 4 states. [2021-02-19 17:04:12,878 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:04:13,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:13,750 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2021-02-19 17:04:13,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:04:13,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:04:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:13,754 INFO L225 Difference]: With dead ends: 190 [2021-02-19 17:04:13,754 INFO L226 Difference]: Without dead ends: 127 [2021-02-19 17:04:13,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:04:13,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-02-19 17:04:13,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2021-02-19 17:04:13,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-19 17:04:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2021-02-19 17:04:13,799 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 53 [2021-02-19 17:04:13,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:13,800 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2021-02-19 17:04:13,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:04:13,800 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2021-02-19 17:04:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 17:04:13,803 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:13,803 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 17:04:13,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:04:13,803 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:13,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:13,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1411454886, now seen corresponding path program 1 times [2021-02-19 17:04:13,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:13,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675734435] [2021-02-19 17:04:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:13,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:13,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:13,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:13,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:13,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:13,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:13,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:04:13,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:13,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:14,286 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:14,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:14,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:14,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:14,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:14,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 17:04:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:14,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:04:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:14,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:04:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:14,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:14,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:14,431 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 17:04:14,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675734435] [2021-02-19 17:04:14,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:14,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:14,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575255957] [2021-02-19 17:04:14,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:14,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:14,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:14,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:14,434 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 8 states. [2021-02-19 17:04:14,989 WARN L202 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:15,465 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:15,908 WARN L202 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:16,303 WARN L202 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:17,331 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:04:19,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:19,118 INFO L93 Difference]: Finished difference Result 360 states and 450 transitions. [2021-02-19 17:04:19,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 17:04:19,119 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 17:04:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:19,124 INFO L225 Difference]: With dead ends: 360 [2021-02-19 17:04:19,124 INFO L226 Difference]: Without dead ends: 282 [2021-02-19 17:04:19,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 17:04:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-02-19 17:04:19,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 228. [2021-02-19 17:04:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2021-02-19 17:04:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2021-02-19 17:04:19,246 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 57 [2021-02-19 17:04:19,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:19,247 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2021-02-19 17:04:19,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:19,247 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2021-02-19 17:04:19,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-02-19 17:04:19,258 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:19,258 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] [2021-02-19 17:04:19,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:04:19,259 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:19,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:19,259 INFO L82 PathProgramCache]: Analyzing trace with hash -200447646, now seen corresponding path program 1 times [2021-02-19 17:04:19,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:19,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545138606] [2021-02-19 17:04:19,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,798 WARN L202 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:19,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:04:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 17:04:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 17:04:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:19,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-19 17:04:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:19,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:19,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:19,896 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 17:04:19,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545138606] [2021-02-19 17:04:19,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:19,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:04:19,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762571726] [2021-02-19 17:04:19,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:04:19,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:19,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:04:19,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:04:19,899 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand 8 states. [2021-02-19 17:04:20,419 WARN L202 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:21,983 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:22,458 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:22,859 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:04:23,281 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:24,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:24,017 INFO L93 Difference]: Finished difference Result 696 states and 923 transitions. [2021-02-19 17:04:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:04:24,025 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2021-02-19 17:04:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:24,040 INFO L225 Difference]: With dead ends: 696 [2021-02-19 17:04:24,040 INFO L226 Difference]: Without dead ends: 492 [2021-02-19 17:04:24,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:04:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-02-19 17:04:24,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 429. [2021-02-19 17:04:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2021-02-19 17:04:24,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 535 transitions. [2021-02-19 17:04:24,211 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 535 transitions. Word has length 63 [2021-02-19 17:04:24,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:24,212 INFO L480 AbstractCegarLoop]: Abstraction has 429 states and 535 transitions. [2021-02-19 17:04:24,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:04:24,212 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 535 transitions. [2021-02-19 17:04:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:04:24,215 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:24,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:04:24,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:04:24,215 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:24,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:24,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1353953880, now seen corresponding path program 1 times [2021-02-19 17:04:24,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:24,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089390157] [2021-02-19 17:04:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,614 WARN L202 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:04:24,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:04:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:04:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:04:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:04:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:04:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:04:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:04:24,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-02-19 17:04:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-19 17:04:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-19 17:04:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-02-19 17:04:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:04:24,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:04:24,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:04:24,707 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 17:04:24,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089390157] [2021-02-19 17:04:24,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:04:24,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 17:04:24,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082045476] [2021-02-19 17:04:24,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 17:04:24,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:04:24,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 17:04:24,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:04:24,710 INFO L87 Difference]: Start difference. First operand 429 states and 535 transitions. Second operand 6 states. [2021-02-19 17:04:25,211 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:04:26,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:04:26,210 INFO L93 Difference]: Finished difference Result 741 states and 956 transitions. [2021-02-19 17:04:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 17:04:26,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2021-02-19 17:04:26,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:04:26,214 INFO L225 Difference]: With dead ends: 741 [2021-02-19 17:04:26,214 INFO L226 Difference]: Without dead ends: 336 [2021-02-19 17:04:26,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-02-19 17:04:26,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-02-19 17:04:26,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 315. [2021-02-19 17:04:26,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2021-02-19 17:04:26,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 366 transitions. [2021-02-19 17:04:26,298 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 366 transitions. Word has length 67 [2021-02-19 17:04:26,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:04:26,299 INFO L480 AbstractCegarLoop]: Abstraction has 315 states and 366 transitions. [2021-02-19 17:04:26,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 17:04:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 366 transitions. [2021-02-19 17:04:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-19 17:04:26,300 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:04:26,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:04:26,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:04:26,301 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:04:26,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:04:26,302 INFO L82 PathProgramCache]: Analyzing trace with hash 306682056, now seen corresponding path program 1 times [2021-02-19 17:04:26,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:04:26,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121892962] [2021-02-19 17:04:26,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:04:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:26,403 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:04:26,486 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:04:26,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:04:26,594 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:04:26,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 17:04:26,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:04:26 BoogieIcfgContainer [2021-02-19 17:04:26,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:04:26,792 INFO L168 Benchmark]: Toolchain (without parser) took 20904.86 ms. Allocated memory was 159.4 MB in the beginning and 434.1 MB in the end (delta: 274.7 MB). Free memory was 134.3 MB in the beginning and 156.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 253.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:26,792 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 159.4 MB. Free memory is still 130.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:04:26,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.20 ms. Allocated memory is still 159.4 MB. Free memory was 133.2 MB in the beginning and 112.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:26,793 INFO L168 Benchmark]: Boogie Preprocessor took 148.20 ms. Allocated memory is still 159.4 MB. Free memory was 112.6 MB in the beginning and 108.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:26,793 INFO L168 Benchmark]: RCFGBuilder took 1783.97 ms. Allocated memory is still 159.4 MB. Free memory was 108.7 MB in the beginning and 57.5 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:26,794 INFO L168 Benchmark]: TraceAbstraction took 18210.91 ms. Allocated memory was 159.4 MB in the beginning and 434.1 MB in the end (delta: 274.7 MB). Free memory was 57.5 MB in the beginning and 156.5 MB in the end (delta: -99.0 MB). Peak memory consumption was 175.7 MB. Max. memory is 8.0 GB. [2021-02-19 17:04:26,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 159.4 MB. Free memory is still 130.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 740.20 ms. Allocated memory is still 159.4 MB. Free memory was 133.2 MB in the beginning and 112.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.20 ms. Allocated memory is still 159.4 MB. Free memory was 112.6 MB in the beginning and 108.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1783.97 ms. Allocated memory is still 159.4 MB. Free memory was 108.7 MB in the beginning and 57.5 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18210.91 ms. Allocated memory was 159.4 MB in the beginning and 434.1 MB in the end (delta: 274.7 MB). Free memory was 57.5 MB in the beginning and 156.5 MB in the end (delta: -99.0 MB). Peak memory consumption was 175.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 872]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L456] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int waterLevel = 1; [L655] int methaneLevelCritical = 0; [L734] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=171, \old(methaneLevelCritical)=149, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=145, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] int retValue_acc ; [L811] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L816] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L903] int retValue_acc ; [L906] retValue_acc = 1 [L907] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L817] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L817] tmp = valid_product() [L819] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L821] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L822] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L801] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L221] int splverifierCounter ; [L222] int tmp ; [L223] int tmp___0 ; [L224] int tmp___1 ; [L225] int tmp___2 ; [L228] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L230] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L232] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L238] tmp = __VERIFIER_nondet_int() [L240] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L242] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L672] COND TRUE waterLevel < 2 [L673] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L248] tmp___0 = __VERIFIER_nondet_int() [L250] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L258] tmp___2 = __VERIFIER_nondet_int() [L260] COND FALSE !(\read(tmp___2)) [L264] tmp___1 = __VERIFIER_nondet_int() [L266] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L268] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L205] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L212] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L268] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L275] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L59] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L66] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L74] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L841] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L693] int retValue_acc ; [L696] retValue_acc = methaneLevelCritical [L697] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L841] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L841] tmp = isMethaneLevelCritical() [L843] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L847] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L725] int retValue_acc ; [L728] retValue_acc = waterLevel [L729] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L847] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L847] tmp___0 = getWaterLevel() [L849] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L851] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] int retValue_acc ; [L160] retValue_acc = pumpRunning [L161] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L851] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L851] tmp___1 = isPumpRunning() [L853] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L857] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L872] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 223 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 715 SDslu, 384 SDs, 0 SdLazy, 1805 SolverSat, 458 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 195 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 87348 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...