/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_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 16:57:43,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 16:57:43,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 16:57:43,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 16:57:43,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 16:57:43,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 16:57:43,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 16:57:43,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 16:57:43,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 16:57:43,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 16:57:43,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 16:57:43,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 16:57:43,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 16:57:43,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 16:57:43,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 16:57:43,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 16:57:43,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 16:57:43,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 16:57:43,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 16:57:43,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 16:57:43,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 16:57:43,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 16:57:43,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 16:57:43,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 16:57:43,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-19 16:57:43,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-19 16:57:43,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-19 16:57:43,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-19 16:57:43,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-19 16:57:43,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-19 16:57:43,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 16:57:43,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 16:57:43,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 16:57:43,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 16:57:43,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 16:57:43,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 16:57:43,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 16:57:43,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 16:57:43,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 16:57:43,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 16:57:43,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 16:57:43,964 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 16:57:44,021 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 16:57:44,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 16:57:44,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 16:57:44,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 16:57:44,026 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 16:57:44,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 16:57:44,027 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 16:57:44,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 16:57:44,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 16:57:44,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 16:57:44,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 16:57:44,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 16:57:44,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 16:57:44,029 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 16:57:44,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 16:57:44,029 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 16:57:44,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 16:57:44,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 16:57:44,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 16:57:44,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 16:57:44,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 16:57:44,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 16:57:44,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 16:57:44,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 16:57:44,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 16:57:44,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 16:57:44,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 16:57:44,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 16:57:44,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 16:57:44,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 16:57:44,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 16:57:44,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 16:57:44,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 16:57:44,428 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 16:57:44,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2021-02-19 16:57:44,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ede7a17/010e193af40b4634b6eac9f8c445d5aa/FLAG86cee3020 [2021-02-19 16:57:45,273 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 16:57:45,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2021-02-19 16:57:45,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ede7a17/010e193af40b4634b6eac9f8c445d5aa/FLAG86cee3020 [2021-02-19 16:57:45,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88ede7a17/010e193af40b4634b6eac9f8c445d5aa [2021-02-19 16:57:45,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 16:57:45,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 16:57:45,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 16:57:45,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 16:57:45,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 16:57:45,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 04:57:45" (1/1) ... [2021-02-19 16:57:45,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1d9c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:45, skipping insertion in model container [2021-02-19 16:57:45,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 04:57:45" (1/1) ... [2021-02-19 16:57:45,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 16:57:45,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 16:57:45,876 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_spec1_product35.cil.c[2740,2753] [2021-02-19 16:57:46,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 16:57:46,073 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 16:57:46,097 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_spec1_product35.cil.c[2740,2753] [2021-02-19 16:57:46,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 16:57:46,238 INFO L208 MainTranslator]: Completed translation [2021-02-19 16:57:46,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46 WrapperNode [2021-02-19 16:57:46,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 16:57:46,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 16:57:46,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 16:57:46,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 16:57:46,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (1/1) ... [2021-02-19 16:57:46,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (1/1) ... [2021-02-19 16:57:46,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (1/1) ... [2021-02-19 16:57:46,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (1/1) ... [2021-02-19 16:57:46,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (1/1) ... [2021-02-19 16:57:46,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (1/1) ... [2021-02-19 16:57:46,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (1/1) ... [2021-02-19 16:57:46,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 16:57:46,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 16:57:46,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 16:57:46,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 16:57:46,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (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 16:57:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 16:57:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 16:57:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-19 16:57:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 16:57:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-19 16:57:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-19 16:57:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-19 16:57:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-19 16:57:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-19 16:57:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-19 16:57:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2021-02-19 16:57:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-19 16:57:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2021-02-19 16:57:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-19 16:57:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-19 16:57:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-19 16:57:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-19 16:57:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-19 16:57:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-19 16:57:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-19 16:57:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-19 16:57:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-19 16:57:46,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2021-02-19 16:57:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-19 16:57:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-19 16:57:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-19 16:57:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-19 16:57:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-19 16:57:46,544 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-19 16:57:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-19 16:57:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-19 16:57:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-19 16:57:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 16:57:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-19 16:57:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-19 16:57:46,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-19 16:57:46,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-19 16:57:46,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-19 16:57:46,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-19 16:57:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 16:57:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 16:57:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 16:57:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 16:57:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 16:57:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-19 16:57:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-19 16:57:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-19 16:57:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-19 16:57:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-19 16:57:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-19 16:57:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-19 16:57:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2021-02-19 16:57:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-19 16:57:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-19 16:57:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2021-02-19 16:57:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-19 16:57:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-19 16:57:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-19 16:57:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-19 16:57:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-19 16:57:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-19 16:57:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-19 16:57:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-19 16:57:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-19 16:57:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2021-02-19 16:57:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-19 16:57:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-19 16:57:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-19 16:57:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-19 16:57:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-19 16:57:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-19 16:57:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-19 16:57:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-19 16:57:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 16:57:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-19 16:57:46,551 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-19 16:57:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-19 16:57:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-19 16:57:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-19 16:57:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 16:57:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-19 16:57:46,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-19 16:57:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 16:57:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-19 16:57:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-19 16:57:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 16:57:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-19 16:57:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-19 16:57:46,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-19 16:57:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 16:57:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 16:57:46,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 16:57:48,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 16:57:48,136 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 16:57:48,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:57:48 BoogieIcfgContainer [2021-02-19 16:57:48,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 16:57:48,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 16:57:48,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 16:57:48,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 16:57:48,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 04:57:45" (1/3) ... [2021-02-19 16:57:48,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30238ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:57:48, skipping insertion in model container [2021-02-19 16:57:48,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 04:57:46" (2/3) ... [2021-02-19 16:57:48,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30238ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:57:48, skipping insertion in model container [2021-02-19 16:57:48,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:57:48" (3/3) ... [2021-02-19 16:57:48,147 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2021-02-19 16:57:48,155 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 16:57:48,161 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 16:57:48,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 16:57:48,209 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 16:57:48,210 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 16:57:48,210 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 16:57:48,210 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 16:57:48,210 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 16:57:48,210 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 16:57:48,210 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 16:57:48,211 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 16:57:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2021-02-19 16:57:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-19 16:57:48,242 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:57:48,243 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] [2021-02-19 16:57:48,244 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:57:48,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:57:48,250 INFO L82 PathProgramCache]: Analyzing trace with hash -619947603, now seen corresponding path program 1 times [2021-02-19 16:57:48,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:57:48,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846309144] [2021-02-19 16:57:48,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:57:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:48,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:48,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:48,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:48,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,455 WARN L202 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:57:49,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:57:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:49,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:49,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:57:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:49,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:49,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:57:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:49,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:49,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:57:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:49,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:49,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:57:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:49,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:49,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-02-19 16:57:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:49,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:49,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-19 16:57:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:49,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:49,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:49,619 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 16:57:49,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846309144] [2021-02-19 16:57:49,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:57:49,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 16:57:49,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171769836] [2021-02-19 16:57:49,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 16:57:49,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:57:49,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 16:57:49,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 16:57:49,648 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2021-02-19 16:57:51,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:57:51,574 INFO L93 Difference]: Finished difference Result 269 states and 354 transitions. [2021-02-19 16:57:51,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 16:57:51,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2021-02-19 16:57:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:57:51,594 INFO L225 Difference]: With dead ends: 269 [2021-02-19 16:57:51,594 INFO L226 Difference]: Without dead ends: 146 [2021-02-19 16:57:51,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 16:57:51,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-02-19 16:57:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 114. [2021-02-19 16:57:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-02-19 16:57:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2021-02-19 16:57:51,688 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2021-02-19 16:57:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:57:51,688 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2021-02-19 16:57:51,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 16:57:51,689 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2021-02-19 16:57:51,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-19 16:57:51,692 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:57:51,692 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] [2021-02-19 16:57:51,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 16:57:51,692 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:57:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:57:51,693 INFO L82 PathProgramCache]: Analyzing trace with hash 2144139201, now seen corresponding path program 1 times [2021-02-19 16:57:51,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:57:51,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854843803] [2021-02-19 16:57:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:57:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:51,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:51,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:51,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:51,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:57:51,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:51,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,375 WARN L202 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:57:52,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:57:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:52,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:52,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:57:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:52,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:52,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:57:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:52,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:52,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:57:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:52,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:52,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:57:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:52,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:52,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 16:57:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:52,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:52,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:57:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:52,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:52,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:52,444 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 16:57:52,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854843803] [2021-02-19 16:57:52,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:57:52,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 16:57:52,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827161151] [2021-02-19 16:57:52,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 16:57:52,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:57:52,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 16:57:52,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 16:57:52,448 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2021-02-19 16:57:53,429 WARN L202 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:57:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:57:54,618 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2021-02-19 16:57:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 16:57:54,619 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2021-02-19 16:57:54,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:57:54,622 INFO L225 Difference]: With dead ends: 193 [2021-02-19 16:57:54,622 INFO L226 Difference]: Without dead ends: 130 [2021-02-19 16:57:54,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 16:57:54,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-02-19 16:57:54,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 105. [2021-02-19 16:57:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2021-02-19 16:57:54,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2021-02-19 16:57:54,665 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2021-02-19 16:57:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:57:54,666 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2021-02-19 16:57:54,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 16:57:54,666 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2021-02-19 16:57:54,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-19 16:57:54,668 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:57:54,668 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] [2021-02-19 16:57:54,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 16:57:54,669 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:57:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:57:54,670 INFO L82 PathProgramCache]: Analyzing trace with hash -83413122, now seen corresponding path program 1 times [2021-02-19 16:57:54,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:57:54,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539056986] [2021-02-19 16:57:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:57:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:54,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:57:54,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:57:54,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:57:54,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:57:54,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:57:54,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:57:54,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:57:54,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:54,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:55,446 WARN L202 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:57:55,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:57:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:55,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:55,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 16:57:55,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:57:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:55,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:55,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:55,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:57:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:55,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:55,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:55,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:57:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:55,510 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:55,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:57:55,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:57:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:55,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:55,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:55,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 16:57:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:55,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:55,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:55,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 16:57:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:57:55,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:57:55,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:57:55,548 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 16:57:55,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539056986] [2021-02-19 16:57:55,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:57:55,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 16:57:55,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938719314] [2021-02-19 16:57:55,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 16:57:55,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:57:55,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 16:57:55,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 16:57:55,551 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 8 states. [2021-02-19 16:57:56,355 WARN L202 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:57:57,169 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:57:57,848 WARN L202 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:57:58,589 WARN L202 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:00,048 WARN L202 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:02,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:02,547 INFO L93 Difference]: Finished difference Result 363 states and 449 transitions. [2021-02-19 16:58:02,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 16:58:02,549 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2021-02-19 16:58:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:02,553 INFO L225 Difference]: With dead ends: 363 [2021-02-19 16:58:02,553 INFO L226 Difference]: Without dead ends: 282 [2021-02-19 16:58:02,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-02-19 16:58:02,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-02-19 16:58:02,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 216. [2021-02-19 16:58:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2021-02-19 16:58:02,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2021-02-19 16:58:02,640 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 51 [2021-02-19 16:58:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:02,640 INFO L480 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2021-02-19 16:58:02,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 16:58:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2021-02-19 16:58:02,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-02-19 16:58:02,644 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:02,644 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 16:58:02,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 16:58:02,644 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:02,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:02,645 INFO L82 PathProgramCache]: Analyzing trace with hash 2087821455, now seen corresponding path program 1 times [2021-02-19 16:58:02,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:02,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883458833] [2021-02-19 16:58:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:02,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:02,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:02,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:02,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:02,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:02,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:02,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:02,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:02,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:02,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:02,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:02,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:02,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:02,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:03,438 WARN L202 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:03,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:03,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:03,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:03,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:03,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:03,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-02-19 16:58:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:03,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-02-19 16:58:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:03,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-02-19 16:58:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:03,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:03,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:03,630 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 16:58:03,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883458833] [2021-02-19 16:58:03,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:03,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-19 16:58:03,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320927635] [2021-02-19 16:58:03,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-19 16:58:03,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:03,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-19 16:58:03,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-19 16:58:03,633 INFO L87 Difference]: Start difference. First operand 216 states and 258 transitions. Second operand 8 states. [2021-02-19 16:58:04,584 WARN L202 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:58:06,713 WARN L202 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:07,557 WARN L202 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:08,220 WARN L202 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:08,896 WARN L202 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:58:09,767 WARN L202 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:11,326 INFO L93 Difference]: Finished difference Result 698 states and 907 transitions. [2021-02-19 16:58:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 16:58:11,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2021-02-19 16:58:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:11,335 INFO L225 Difference]: With dead ends: 698 [2021-02-19 16:58:11,335 INFO L226 Difference]: Without dead ends: 506 [2021-02-19 16:58:11,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2021-02-19 16:58:11,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2021-02-19 16:58:11,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 387. [2021-02-19 16:58:11,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2021-02-19 16:58:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 466 transitions. [2021-02-19 16:58:11,466 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 466 transitions. Word has length 57 [2021-02-19 16:58:11,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:11,467 INFO L480 AbstractCegarLoop]: Abstraction has 387 states and 466 transitions. [2021-02-19 16:58:11,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-19 16:58:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 466 transitions. [2021-02-19 16:58:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-19 16:58:11,470 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:11,470 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] [2021-02-19 16:58:11,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-19 16:58:11,470 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:11,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1842166739, now seen corresponding path program 1 times [2021-02-19 16:58:11,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:11,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957418139] [2021-02-19 16:58:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:11,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:11,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:11,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:12,153 WARN L202 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:12,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:12,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:12,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:12,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:12,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:12,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:58:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:12,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-19 16:58:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:12,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-02-19 16:58:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:12,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-19 16:58:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:12,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:12,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:12,284 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 16:58:12,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957418139] [2021-02-19 16:58:12,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:12,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 16:58:12,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894124904] [2021-02-19 16:58:12,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 16:58:12,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 16:58:12,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-19 16:58:12,289 INFO L87 Difference]: Start difference. First operand 387 states and 466 transitions. Second operand 9 states. [2021-02-19 16:58:13,228 WARN L202 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:58:15,194 WARN L202 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:15,993 WARN L202 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:16,761 WARN L202 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:18,001 WARN L202 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:58:18,810 WARN L202 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:20,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:20,573 INFO L93 Difference]: Finished difference Result 1120 states and 1488 transitions. [2021-02-19 16:58:20,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-19 16:58:20,575 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2021-02-19 16:58:20,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:20,583 INFO L225 Difference]: With dead ends: 1120 [2021-02-19 16:58:20,583 INFO L226 Difference]: Without dead ends: 757 [2021-02-19 16:58:20,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-02-19 16:58:20,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2021-02-19 16:58:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 599. [2021-02-19 16:58:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2021-02-19 16:58:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 735 transitions. [2021-02-19 16:58:20,793 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 735 transitions. Word has length 61 [2021-02-19 16:58:20,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:20,793 INFO L480 AbstractCegarLoop]: Abstraction has 599 states and 735 transitions. [2021-02-19 16:58:20,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 16:58:20,794 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 735 transitions. [2021-02-19 16:58:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-02-19 16:58:20,796 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:20,797 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:58:20,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-19 16:58:20,797 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:20,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:20,798 INFO L82 PathProgramCache]: Analyzing trace with hash 728191379, now seen corresponding path program 1 times [2021-02-19 16:58:20,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:20,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827614497] [2021-02-19 16:58:20,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:20,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:20,849 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:20,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:20,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:20,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:20,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:20,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:20,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:20,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:20,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,473 WARN L202 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:21,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:21,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:58:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,543 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,544 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:58:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:58:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:21,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:21,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 16:58:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:21,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 16:58:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 16:58:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-19 16:58:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:21,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:21,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:21,685 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 16:58:21,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827614497] [2021-02-19 16:58:21,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:21,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-19 16:58:21,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643026958] [2021-02-19 16:58:21,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 16:58:21,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:21,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 16:58:21,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-02-19 16:58:21,688 INFO L87 Difference]: Start difference. First operand 599 states and 735 transitions. Second operand 11 states. [2021-02-19 16:58:23,475 WARN L202 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:24,218 WARN L202 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:24,925 WARN L202 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:26,369 WARN L202 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:27,144 WARN L202 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:27,898 WARN L202 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:29,878 INFO L93 Difference]: Finished difference Result 1426 states and 1945 transitions. [2021-02-19 16:58:29,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-19 16:58:29,878 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2021-02-19 16:58:29,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:29,886 INFO L225 Difference]: With dead ends: 1426 [2021-02-19 16:58:29,886 INFO L226 Difference]: Without dead ends: 851 [2021-02-19 16:58:29,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2021-02-19 16:58:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2021-02-19 16:58:30,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 621. [2021-02-19 16:58:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2021-02-19 16:58:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 757 transitions. [2021-02-19 16:58:30,101 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 757 transitions. Word has length 78 [2021-02-19 16:58:30,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:30,102 INFO L480 AbstractCegarLoop]: Abstraction has 621 states and 757 transitions. [2021-02-19 16:58:30,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-19 16:58:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 757 transitions. [2021-02-19 16:58:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-02-19 16:58:30,107 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:30,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:58:30,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-19 16:58:30,108 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:30,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:30,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1237664469, now seen corresponding path program 1 times [2021-02-19 16:58:30,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:30,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946672516] [2021-02-19 16:58:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,755 WARN L202 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:30,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:58:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:58:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:30,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:30,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:58:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 16:58:30,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 16:58:30,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 16:58:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 16:58:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 16:58:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-19 16:58:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:30,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:30,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:30,940 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 16:58:30,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946672516] [2021-02-19 16:58:30,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:30,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 16:58:30,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567335284] [2021-02-19 16:58:30,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 16:58:30,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:30,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 16:58:30,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-02-19 16:58:30,943 INFO L87 Difference]: Start difference. First operand 621 states and 757 transitions. Second operand 9 states. [2021-02-19 16:58:32,697 WARN L202 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-19 16:58:33,350 WARN L202 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2021-02-19 16:58:34,079 WARN L202 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:34,819 WARN L202 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-19 16:58:36,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:36,620 INFO L93 Difference]: Finished difference Result 1456 states and 1928 transitions. [2021-02-19 16:58:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 16:58:36,621 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2021-02-19 16:58:36,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:36,627 INFO L225 Difference]: With dead ends: 1456 [2021-02-19 16:58:36,627 INFO L226 Difference]: Without dead ends: 859 [2021-02-19 16:58:36,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-02-19 16:58:36,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2021-02-19 16:58:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 641. [2021-02-19 16:58:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2021-02-19 16:58:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 777 transitions. [2021-02-19 16:58:36,805 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 777 transitions. Word has length 78 [2021-02-19 16:58:36,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:36,805 INFO L480 AbstractCegarLoop]: Abstraction has 641 states and 777 transitions. [2021-02-19 16:58:36,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 16:58:36,805 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 777 transitions. [2021-02-19 16:58:36,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-02-19 16:58:36,808 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:36,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:58:36,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-19 16:58:36,809 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:36,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:36,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1281912462, now seen corresponding path program 1 times [2021-02-19 16:58:36,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:36,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149397755] [2021-02-19 16:58:36,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:36,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:36,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:36,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:36,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:36,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:36,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:36,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:36,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:36,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:36,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 16:58:36,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:36,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,541 WARN L202 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-19 16:58:37,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 16:58:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 16:58:37,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 16:58:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-19 16:58:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-19 16:58:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-02-19 16:58:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-19 16:58:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-02-19 16:58:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 16:58:37,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-19 16:58:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:58:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-02-19 16:58:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 16:58:37,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-19 16:58:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-02-19 16:58:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-19 16:58:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 16:58:37,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 16:58:37,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 16:58:37,703 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 16:58:37,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149397755] [2021-02-19 16:58:37,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 16:58:37,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-19 16:58:37,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047357911] [2021-02-19 16:58:37,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 16:58:37,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 16:58:37,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 16:58:37,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-19 16:58:37,706 INFO L87 Difference]: Start difference. First operand 641 states and 777 transitions. Second operand 7 states. [2021-02-19 16:58:38,608 WARN L202 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:58:39,789 WARN L202 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-19 16:58:43,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 16:58:43,833 INFO L93 Difference]: Finished difference Result 2308 states and 3135 transitions. [2021-02-19 16:58:43,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 16:58:43,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2021-02-19 16:58:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 16:58:43,846 INFO L225 Difference]: With dead ends: 2308 [2021-02-19 16:58:43,846 INFO L226 Difference]: Without dead ends: 1691 [2021-02-19 16:58:43,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-02-19 16:58:43,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-02-19 16:58:44,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1415. [2021-02-19 16:58:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1415 states. [2021-02-19 16:58:44,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1739 transitions. [2021-02-19 16:58:44,182 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1739 transitions. Word has length 78 [2021-02-19 16:58:44,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 16:58:44,182 INFO L480 AbstractCegarLoop]: Abstraction has 1415 states and 1739 transitions. [2021-02-19 16:58:44,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 16:58:44,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1739 transitions. [2021-02-19 16:58:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-02-19 16:58:44,185 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 16:58:44,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 16:58:44,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-19 16:58:44,186 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 16:58:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 16:58:44,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1564269132, now seen corresponding path program 1 times [2021-02-19 16:58:44,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 16:58:44,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086472515] [2021-02-19 16:58:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 16:58:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 16:58:44,258 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 16:58:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-19 16:58:44,327 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-19 16:58:44,419 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-19 16:58:44,419 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-19 16:58:44,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-19 16:58:44,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 04:58:44 BoogieIcfgContainer [2021-02-19 16:58:44,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 16:58:44,607 INFO L168 Benchmark]: Toolchain (without parser) took 59018.69 ms. Allocated memory was 153.1 MB in the beginning and 320.9 MB in the end (delta: 167.8 MB). Free memory was 127.5 MB in the beginning and 152.1 MB in the end (delta: -24.6 MB). Peak memory consumption was 144.0 MB. Max. memory is 8.0 GB. [2021-02-19 16:58:44,607 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 16:58:44,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.47 ms. Allocated memory is still 153.1 MB. Free memory was 126.4 MB in the beginning and 105.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-19 16:58:44,608 INFO L168 Benchmark]: Boogie Preprocessor took 186.25 ms. Allocated memory is still 153.1 MB. Free memory was 105.7 MB in the beginning and 134.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. [2021-02-19 16:58:44,608 INFO L168 Benchmark]: RCFGBuilder took 1711.22 ms. Allocated memory is still 153.1 MB. Free memory was 134.6 MB in the beginning and 132.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 89.0 MB. Max. memory is 8.0 GB. [2021-02-19 16:58:44,609 INFO L168 Benchmark]: TraceAbstraction took 56465.82 ms. Allocated memory was 153.1 MB in the beginning and 320.9 MB in the end (delta: 167.8 MB). Free memory was 131.6 MB in the beginning and 152.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 146.8 MB. Max. memory is 8.0 GB. [2021-02-19 16:58:44,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 153.1 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 632.47 ms. Allocated memory is still 153.1 MB. Free memory was 126.4 MB in the beginning and 105.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 186.25 ms. Allocated memory is still 153.1 MB. Free memory was 105.7 MB in the beginning and 134.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1711.22 ms. Allocated memory is still 153.1 MB. Free memory was 134.6 MB in the beginning and 132.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 89.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 56465.82 ms. Allocated memory was 153.1 MB in the beginning and 320.9 MB in the end (delta: 167.8 MB). Free memory was 131.6 MB in the beginning and 152.1 MB in the end (delta: -20.5 MB). Peak memory consumption was 146.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 147]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L252] int pumpRunning = 0; [L253] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L722] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=178, \old(head)=170, \old(head)=182, \old(methaneLevelCritical)=152, \old(pumpRunning)=141, \old(systemActive)=140, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] int retValue_acc ; [L531] 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] [L535] 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] [L536] 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] [L537] 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] [L448] int retValue_acc ; [L451] retValue_acc = 1 [L452] 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] [L537] 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] [L537] tmp = valid_product() [L539] 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] [L541] 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] [L542] 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] [L524] 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] [L183] int splverifierCounter ; [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L187] int tmp___2 ; [L190] 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] [L192] 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] [L194] 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] [L200] tmp = __VERIFIER_nondet_int() [L202] 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] [L204] 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] [L67] COND TRUE waterLevel < 2 [L68] 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] [L204] 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] [L210] tmp___0 = __VERIFIER_nondet_int() [L212] COND TRUE \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=-1, waterLevel=2] [L214] CALL changeMethaneLevel() 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] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L214] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L220] tmp___2 = __VERIFIER_nondet_int() [L222] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, tmp___2=-2, waterLevel=2] [L237] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L259] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L266] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L268] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L288] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L291] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L385] int retValue_acc ; [L386] int tmp ; [L387] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L391] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L129] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L391] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L391] tmp = isHighWaterSensorDry() [L393] COND FALSE !(\read(tmp)) [L396] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L398] retValue_acc = tmp___0 [L399] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L293] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] tmp = isHighWaterLevel() [L295] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L297] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L316] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L297] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L268] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L274] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L154] int tmp ; [L155] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L159] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] tmp = isMethaneLevelCritical() [L161] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L163] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L163] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L163] tmp___0 = isPumpRunning() [L165] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L167] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L147] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 56.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 47.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 844 SDtfs, 1601 SDslu, 938 SDs, 0 SdLazy, 4468 SolverSat, 992 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 259 GetRequests, 170 SyntacticMatches, 3 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 25.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1415occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1124 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 152262 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...