/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_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:03:37,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:03:37,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:03:37,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 17:03:37,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 17:03:37,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 17:03:37,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 17:03:37,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 17:03:37,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 17:03:37,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 17:03:37,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 17:03:37,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 17:03:37,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:03:37,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:03:37,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:03:37,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:03:37,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:03:37,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:03:37,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:03:37,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:03:37,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:03:37,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:03:37,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:03:37,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:03:37,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 17:03:37,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 17:03:37,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 17:03:37,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 17:03:37,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 17:03:37,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 17:03:37,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 17:03:37,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 17:03:37,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 17:03:37,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 17:03:37,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 17:03:37,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 17:03:37,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 17:03:37,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 17:03:37,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:03:37,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:03:37,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:03:37,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 17:03:37,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:03:37,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:03:37,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:03:37,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:03:37,197 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:03:37,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:03:37,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:03:37,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:03:37,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:03:37,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:03:37,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:03:37,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:03:37,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:03:37,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:03:37,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:03:37,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:03:37,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:03:37,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:03:37,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:03:37,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:03:37,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:03:37,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:03:37,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:03:37,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:03:37,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:03:37,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:03:37,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:03:37,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:03:37,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:03:37,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:03:37,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:03:37,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:03:37,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:03:37,649 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:03:37,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2021-02-19 17:03:37,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ca4a820/dd2ef106311f4dba9721ea0a4526319f/FLAGc1f89c4dd [2021-02-19 17:03:38,439 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:03:38,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2021-02-19 17:03:38,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ca4a820/dd2ef106311f4dba9721ea0a4526319f/FLAGc1f89c4dd [2021-02-19 17:03:38,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92ca4a820/dd2ef106311f4dba9721ea0a4526319f [2021-02-19 17:03:38,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:03:38,690 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:03:38,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:03:38,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:03:38,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:03:38,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:03:38" (1/1) ... [2021-02-19 17:03:38,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5062138f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:38, skipping insertion in model container [2021-02-19 17:03:38,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:03:38" (1/1) ... [2021-02-19 17:03:38,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:03:38,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:03:38,908 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_product06.cil.c[1281,1294] [2021-02-19 17:03:39,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:03:39,045 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:03:39,061 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_product06.cil.c[1281,1294] [2021-02-19 17:03:39,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:03:39,201 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:03:39,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39 WrapperNode [2021-02-19 17:03:39,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:03:39,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:03:39,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:03:39,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:03:39,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... [2021-02-19 17:03:39,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... [2021-02-19 17:03:39,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... [2021-02-19 17:03:39,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... [2021-02-19 17:03:39,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... [2021-02-19 17:03:39,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... [2021-02-19 17:03:39,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... [2021-02-19 17:03:39,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:03:39,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:03:39,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:03:39,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:03:39,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:03:39,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:03:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:03:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 17:03:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:03:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 17:03:39,449 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 17:03:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 17:03:39,450 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 17:03:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 17:03:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 17:03:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 17:03:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 17:03:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 17:03:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 17:03:39,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 17:03:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 17:03:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 17:03:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-19 17:03:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 17:03:39,456 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 17:03:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 17:03:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 17:03:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 17:03:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 17:03:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 17:03:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 17:03:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 17:03:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 17:03:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 17:03:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:03:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 17:03:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 17:03:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 17:03:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 17:03:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 17:03:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 17:03:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:03:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:03:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:03:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:03:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:03:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:03:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 17:03:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 17:03:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 17:03:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 17:03:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 17:03:39,462 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 17:03:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 17:03:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 17:03:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 17:03:39,481 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 17:03:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:03:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 17:03:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 17:03:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:03:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 17:03:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 17:03:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:03:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 17:03:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 17:03:39,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 17:03:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:03:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:03:39,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:03:40,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:03:40,817 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 17:03:40,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:03:40 BoogieIcfgContainer [2021-02-19 17:03:40,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:03:40,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:03:40,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:03:40,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:03:40,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:03:38" (1/3) ... [2021-02-19 17:03:40,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173aa65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:03:40, skipping insertion in model container [2021-02-19 17:03:40,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:03:39" (2/3) ... [2021-02-19 17:03:40,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173aa65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:03:40, skipping insertion in model container [2021-02-19 17:03:40,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:03:40" (3/3) ... [2021-02-19 17:03:40,836 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2021-02-19 17:03:40,843 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:03:40,849 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:03:40,870 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:03:40,904 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:03:40,905 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:03:40,905 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:03:40,905 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:03:40,905 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:03:40,905 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:03:40,905 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:03:40,906 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:03:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2021-02-19 17:03:40,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-02-19 17:03:40,959 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:40,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:03:40,961 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:40,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:40,968 INFO L82 PathProgramCache]: Analyzing trace with hash 492404333, now seen corresponding path program 1 times [2021-02-19 17:03:40,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:40,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094064976] [2021-02-19 17:03:40,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,704 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:41,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 17:03:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:03:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:03:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:41,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:41,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:41,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094064976] [2021-02-19 17:03:41,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:41,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 17:03:41,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245909118] [2021-02-19 17:03:41,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 17:03:41,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:41,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 17:03:41,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:03:41,886 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2021-02-19 17:03:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:43,063 INFO L93 Difference]: Finished difference Result 258 states and 341 transitions. [2021-02-19 17:03:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 17:03:43,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-02-19 17:03:43,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:43,079 INFO L225 Difference]: With dead ends: 258 [2021-02-19 17:03:43,080 INFO L226 Difference]: Without dead ends: 140 [2021-02-19 17:03:43,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 17:03:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-02-19 17:03:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 109. [2021-02-19 17:03:43,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-02-19 17:03:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-02-19 17:03:43,199 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 52 [2021-02-19 17:03:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:43,199 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-02-19 17:03:43,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 17:03:43,200 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-02-19 17:03:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-19 17:03:43,203 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:43,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:03:43,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:03:43,204 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:43,205 INFO L82 PathProgramCache]: Analyzing trace with hash 609566107, now seen corresponding path program 1 times [2021-02-19 17:03:43,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:43,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188522165] [2021-02-19 17:03:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:43,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,553 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 17:03:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 17:03:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-02-19 17:03:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:43,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:43,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:43,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188522165] [2021-02-19 17:03:43,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:43,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 17:03:43,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598604215] [2021-02-19 17:03:43,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 17:03:43,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:43,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 17:03:43,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 17:03:43,637 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 4 states. [2021-02-19 17:03:44,128 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 17:03:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:44,795 INFO L93 Difference]: Finished difference Result 187 states and 228 transitions. [2021-02-19 17:03:44,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:03:44,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-02-19 17:03:44,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:44,799 INFO L225 Difference]: With dead ends: 187 [2021-02-19 17:03:44,799 INFO L226 Difference]: Without dead ends: 124 [2021-02-19 17:03:44,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:03:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-02-19 17:03:44,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2021-02-19 17:03:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-02-19 17:03:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2021-02-19 17:03:44,850 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 53 [2021-02-19 17:03:44,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:44,850 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2021-02-19 17:03:44,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 17:03:44,851 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2021-02-19 17:03:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-02-19 17:03:44,853 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:44,853 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] [2021-02-19 17:03:44,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:03:44,854 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:44,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:44,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1192298757, now seen corresponding path program 1 times [2021-02-19 17:03:44,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:44,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806336868] [2021-02-19 17:03:44,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:44,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:44,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:44,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:44,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:44,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:03:44,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:03:44,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:03:44,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:44,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:45,261 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:45,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:45,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:03:45,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:45,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:45,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:45,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:45,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,329 WARN L141 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size [2021-02-19 17:03:45,330 WARN L147 QuantifierPusher]: treesize reduction 22, result has 33.3 percent of original size 11 [2021-02-19 17:03:45,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:45,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:45,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 17:03:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:45,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:45,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-02-19 17:03:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:45,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:45,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-02-19 17:03:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:45,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:45,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:45,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806336868] [2021-02-19 17:03:45,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:45,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:03:45,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643675670] [2021-02-19 17:03:45,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:03:45,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:45,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:03:45,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:03:45,373 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 8 states. [2021-02-19 17:03:45,831 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:03:46,179 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:46,517 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:46,804 WARN L202 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:47,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:47,801 INFO L93 Difference]: Finished difference Result 200 states and 246 transitions. [2021-02-19 17:03:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 17:03:47,802 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2021-02-19 17:03:47,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:47,806 INFO L225 Difference]: With dead ends: 200 [2021-02-19 17:03:47,806 INFO L226 Difference]: Without dead ends: 124 [2021-02-19 17:03:47,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-19 17:03:47,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-02-19 17:03:47,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2021-02-19 17:03:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-02-19 17:03:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2021-02-19 17:03:47,860 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 58 [2021-02-19 17:03:47,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:47,860 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2021-02-19 17:03:47,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:03:47,861 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2021-02-19 17:03:47,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-02-19 17:03:47,862 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:47,863 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] [2021-02-19 17:03:47,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:03:47,863 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:47,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:47,864 INFO L82 PathProgramCache]: Analyzing trace with hash 701720364, now seen corresponding path program 1 times [2021-02-19 17:03:47,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:47,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604975006] [2021-02-19 17:03:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:47,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:47,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:47,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:47,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:47,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:47,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:47,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:47,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:47,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,223 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 17:03:48,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:03:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 17:03:48,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:03:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 17:03:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 17:03:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 17:03:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-19 17:03:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 17:03:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-02-19 17:03:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-02-19 17:03:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:03:48,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-19 17:03:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:03:48,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:03:48,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:03:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:03:48,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604975006] [2021-02-19 17:03:48,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:03:48,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 17:03:48,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631527221] [2021-02-19 17:03:48,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 17:03:48,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:03:48,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 17:03:48,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:03:48,323 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 8 states. [2021-02-19 17:03:48,766 WARN L202 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:03:50,175 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:50,550 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:50,849 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 17:03:51,254 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 17:03:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:03:51,538 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2021-02-19 17:03:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-19 17:03:51,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2021-02-19 17:03:51,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:03:51,546 INFO L225 Difference]: With dead ends: 299 [2021-02-19 17:03:51,547 INFO L226 Difference]: Without dead ends: 223 [2021-02-19 17:03:51,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-02-19 17:03:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-02-19 17:03:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 174. [2021-02-19 17:03:51,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2021-02-19 17:03:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2021-02-19 17:03:51,608 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 66 [2021-02-19 17:03:51,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:03:51,609 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2021-02-19 17:03:51,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 17:03:51,609 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2021-02-19 17:03:51,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-02-19 17:03:51,612 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:03:51,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:03:51,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 17:03:51,612 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:03:51,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:03:51,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1277332326, now seen corresponding path program 1 times [2021-02-19 17:03:51,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:03:51,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215168109] [2021-02-19 17:03:51,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:03:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:03:51,743 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:03:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 17:03:51,829 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 17:03:51,911 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 17:03:51,912 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 17:03:51,912 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 17:03:52,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:03:52 BoogieIcfgContainer [2021-02-19 17:03:52,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:03:52,048 INFO L168 Benchmark]: Toolchain (without parser) took 13369.54 ms. Allocated memory was 151.0 MB in the beginning and 323.0 MB in the end (delta: 172.0 MB). Free memory was 125.8 MB in the beginning and 120.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 178.8 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:52,049 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:03:52,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.40 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 104.8 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:52,050 INFO L168 Benchmark]: Boogie Preprocessor took 101.74 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 101.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:52,051 INFO L168 Benchmark]: RCFGBuilder took 1513.19 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 53.8 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:52,052 INFO L168 Benchmark]: TraceAbstraction took 11219.67 ms. Allocated memory was 151.0 MB in the beginning and 323.0 MB in the end (delta: 172.0 MB). Free memory was 53.3 MB in the beginning and 120.0 MB in the end (delta: -66.7 MB). Peak memory consumption was 105.2 MB. Max. memory is 8.0 GB. [2021-02-19 17:03:52,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 123.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 511.40 ms. Allocated memory is still 151.0 MB. Free memory was 124.6 MB in the beginning and 104.8 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 101.74 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 101.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1513.19 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 53.8 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11219.67 ms. Allocated memory was 151.0 MB in the beginning and 323.0 MB in the end (delta: 172.0 MB). Free memory was 53.3 MB in the beginning and 120.0 MB in the end (delta: -66.7 MB). Peak memory consumption was 105.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L391] int cleanupTimeShifts = 4; [L656] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=181, \old(head)=182, \old(head)=168, \old(methaneLevelCritical)=146, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L464] int retValue_acc ; [L465] 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] [L469] 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] [L470] 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] [L471] 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] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] 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] [L471] 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] [L471] tmp = valid_product() [L473] 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] [L475] 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] [L476] 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] [L458] 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] [L244] int splverifierCounter ; [L245] int tmp ; [L246] int tmp___0 ; [L247] int tmp___1 ; [L248] int tmp___2 ; [L251] 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] [L253] 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] [L255] 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] [L261] tmp = __VERIFIER_nondet_int() [L263] 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] [L265] 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] [L329] COND TRUE waterLevel < 2 [L330] 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] [L265] 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] [L271] tmp___0 = __VERIFIER_nondet_int() [L273] 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] [L281] tmp___2 = __VERIFIER_nondet_int() [L283] COND FALSE !(\read(tmp___2)) [L289] tmp___1 = __VERIFIER_nondet_int() [L291] 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] [L298] 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=1, waterLevel=2] [L106] 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=1, waterLevel=2] [L113] COND TRUE \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=1, waterLevel=2] [L115] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] 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=1, waterLevel=2] [L153] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L115] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L121] 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=1, waterLevel=2] [L854] int tmp ; [L855] int tmp___0 ; [L856] 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=1, waterLevel=2] [L860] 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=1, waterLevel=2] [L350] int retValue_acc ; [L353] retValue_acc = methaneLevelCritical [L354] 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=1, waterLevel=2] [L860] 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=1, waterLevel=2] [L860] tmp = isMethaneLevelCritical() [L862] 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=1, tmp=0, waterLevel=2] [L866] 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=1, waterLevel=2] [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] 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=1, waterLevel=2] [L866] 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=1, tmp=0, waterLevel=2] [L866] tmp___0 = getWaterLevel() [L868] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L870] 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=1, waterLevel=2] [L187] int retValue_acc ; [L190] retValue_acc = pumpRunning [L191] 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=1, waterLevel=2] [L870] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L870] tmp___1 = isPumpRunning() [L872] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L876] 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=1, waterLevel=2] [L46] 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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 383 SDtfs, 539 SDslu, 227 SDs, 0 SdLazy, 1240 SolverSat, 359 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 128 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 67012 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...