/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:03:10,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:03:10,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:03:10,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:03:10,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:03:10,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:03:10,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:03:10,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:03:10,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:03:10,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:03:10,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:03:10,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:03:10,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:03:10,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:03:10,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:03:10,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:03:10,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:03:10,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:03:10,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:03:10,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:03:10,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:03:10,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:03:10,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:03:10,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:03:10,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:03:10,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:03:10,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:03:10,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:03:10,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:03:10,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:03:10,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:03:10,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:03:10,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:03:10,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:03:10,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:03:10,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:03:10,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:03:10,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:03:10,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:03:10,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:03:10,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:03:10,081 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 12:03:10,111 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:03:10,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:03:10,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:03:10,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:03:10,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:03:10,118 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:03:10,118 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:03:10,118 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:03:10,118 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:03:10,118 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:03:10,119 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:03:10,119 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:03:10,119 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:03:10,119 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:03:10,120 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:03:10,120 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:03:10,120 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:03:10,120 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:03:10,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:03:10,121 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:03:10,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:03:10,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:03:10,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:03:10,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:03:10,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:03:10,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:03:10,122 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:03:10,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:03:10,122 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:03:10,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:03:10,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:03:10,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:03:10,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:03:10,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:03:10,123 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:03:10,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:03:10,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:03:10,123 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:03:10,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:03:10,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:03:10,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:03:10,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:03:10,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:03:10,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:03:10,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:03:10,402 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:03:10,402 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:03:10,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2023-04-01 12:03:11,697 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:03:11,907 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:03:11,907 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2023-04-01 12:03:11,917 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38abf9dd/789fc0232615455b9c2678fa2ddd6da4/FLAG4adb2c19e [2023-04-01 12:03:11,930 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38abf9dd/789fc0232615455b9c2678fa2ddd6da4 [2023-04-01 12:03:11,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:03:11,933 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:03:11,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:03:11,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:03:11,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:03:11,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:03:11" (1/1) ... [2023-04-01 12:03:11,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b96f0e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:11, skipping insertion in model container [2023-04-01 12:03:11,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:03:11" (1/1) ... [2023-04-01 12:03:11,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:03:11,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:03:12,088 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c[1605,1618] [2023-04-01 12:03:12,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:03:12,185 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:03:12,199 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c[1605,1618] [2023-04-01 12:03:12,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:03:12,260 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:03:12,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12 WrapperNode [2023-04-01 12:03:12,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:03:12,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:03:12,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:03:12,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:03:12,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,347 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:03:12,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:03:12,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:03:12,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:03:12,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (1/1) ... [2023-04-01 12:03:12,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:03:12,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:03:12,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 12:03:12,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 12:03:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:03:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:03:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 12:03:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:03:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:03:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 12:03:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 12:03:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 12:03:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 12:03:12,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 12:03:12,421 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 12:03:12,422 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:03:12,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 12:03:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 12:03:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 12:03:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 12:03:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:03:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:03:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:03:12,589 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:03:12,592 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:03:13,155 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:03:13,301 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:03:13,301 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 12:03:13,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:03:13 BoogieIcfgContainer [2023-04-01 12:03:13,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:03:13,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:03:13,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:03:13,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:03:13,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:03:11" (1/3) ... [2023-04-01 12:03:13,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed4cf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:03:13, skipping insertion in model container [2023-04-01 12:03:13,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:03:12" (2/3) ... [2023-04-01 12:03:13,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed4cf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:03:13, skipping insertion in model container [2023-04-01 12:03:13,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:03:13" (3/3) ... [2023-04-01 12:03:13,313 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2023-04-01 12:03:13,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:03:13,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:03:13,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:03:13,395 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@227f3441, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:03:13,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:03:13,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 60 states have (on average 1.3) internal successors, (78), 72 states have internal predecessors, (78), 43 states have call successors, (43), 25 states have call predecessors, (43), 25 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2023-04-01 12:03:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 12:03:13,410 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:13,413 INFO L195 NwaCegarLoop]: 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] [2023-04-01 12:03:13,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:13,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:13,421 INFO L85 PathProgramCache]: Analyzing trace with hash 682308009, now seen corresponding path program 1 times [2023-04-01 12:03:13,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:13,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116810246] [2023-04-01 12:03:13,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:13,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:03:13,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:13,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116810246] [2023-04-01 12:03:13,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116810246] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:13,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:13,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 12:03:13,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267474673] [2023-04-01 12:03:13,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:13,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 12:03:13,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:13,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 12:03:13,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:03:13,744 INFO L87 Difference]: Start difference. First operand has 131 states, 60 states have (on average 1.3) internal successors, (78), 72 states have internal predecessors, (78), 43 states have call successors, (43), 25 states have call predecessors, (43), 25 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:03:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:13,787 INFO L93 Difference]: Finished difference Result 195 states and 242 transitions. [2023-04-01 12:03:13,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 12:03:13,802 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-04-01 12:03:13,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:13,813 INFO L225 Difference]: With dead ends: 195 [2023-04-01 12:03:13,813 INFO L226 Difference]: Without dead ends: 98 [2023-04-01 12:03:13,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 12:03:13,823 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:13,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:03:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-04-01 12:03:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-04-01 12:03:13,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 60 states have internal predecessors, (64), 28 states have call successors, (28), 23 states have call predecessors, (28), 18 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 12:03:13,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2023-04-01 12:03:13,869 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 47 [2023-04-01 12:03:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:13,870 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2023-04-01 12:03:13,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:03:13,870 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2023-04-01 12:03:13,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-01 12:03:13,875 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:13,875 INFO L195 NwaCegarLoop]: 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] [2023-04-01 12:03:13,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 12:03:13,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:13,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:13,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1871678070, now seen corresponding path program 1 times [2023-04-01 12:03:13,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:13,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716580018] [2023-04-01 12:03:13,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:13,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:03:14,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:14,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716580018] [2023-04-01 12:03:14,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716580018] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:14,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:14,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 12:03:14,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171063961] [2023-04-01 12:03:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:14,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 12:03:14,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:14,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 12:03:14,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:03:14,042 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:03:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:14,110 INFO L93 Difference]: Finished difference Result 146 states and 170 transitions. [2023-04-01 12:03:14,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 12:03:14,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-04-01 12:03:14,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:14,115 INFO L225 Difference]: With dead ends: 146 [2023-04-01 12:03:14,115 INFO L226 Difference]: Without dead ends: 90 [2023-04-01 12:03:14,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 12:03:14,116 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 11 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:14,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 168 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 12:03:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-04-01 12:03:14,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-04-01 12:03:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 55 states have internal predecessors, (58), 25 states have call successors, (25), 22 states have call predecessors, (25), 18 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-04-01 12:03:14,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2023-04-01 12:03:14,130 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 48 [2023-04-01 12:03:14,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:14,130 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2023-04-01 12:03:14,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 12:03:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2023-04-01 12:03:14,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 12:03:14,132 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:14,133 INFO L195 NwaCegarLoop]: 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] [2023-04-01 12:03:14,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 12:03:14,133 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:14,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1711210810, now seen corresponding path program 1 times [2023-04-01 12:03:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:14,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925739985] [2023-04-01 12:03:14,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:14,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:14,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:03:14,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:14,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925739985] [2023-04-01 12:03:14,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925739985] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:14,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:14,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 12:03:14,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991412316] [2023-04-01 12:03:14,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:14,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 12:03:14,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:14,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 12:03:14,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 12:03:14,390 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 12:03:14,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:14,761 INFO L93 Difference]: Finished difference Result 275 states and 331 transitions. [2023-04-01 12:03:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:03:14,762 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 51 [2023-04-01 12:03:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:14,770 INFO L225 Difference]: With dead ends: 275 [2023-04-01 12:03:14,770 INFO L226 Difference]: Without dead ends: 207 [2023-04-01 12:03:14,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 12:03:14,776 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 205 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:14,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 443 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 12:03:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-04-01 12:03:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 199. [2023-04-01 12:03:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 108 states have (on average 1.2962962962962963) internal successors, (140), 126 states have internal predecessors, (140), 51 states have call successors, (51), 45 states have call predecessors, (51), 39 states have return successors, (48), 39 states have call predecessors, (48), 47 states have call successors, (48) [2023-04-01 12:03:14,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 239 transitions. [2023-04-01 12:03:14,806 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 239 transitions. Word has length 51 [2023-04-01 12:03:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:14,807 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 239 transitions. [2023-04-01 12:03:14,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 12:03:14,807 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 239 transitions. [2023-04-01 12:03:14,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-01 12:03:14,809 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:14,809 INFO L195 NwaCegarLoop]: 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] [2023-04-01 12:03:14,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 12:03:14,810 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:14,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1735164167, now seen corresponding path program 1 times [2023-04-01 12:03:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:14,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595493028] [2023-04-01 12:03:14,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:14,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 12:03:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 12:03:14,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 12:03:14,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595493028] [2023-04-01 12:03:14,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595493028] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 12:03:14,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 12:03:14,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 12:03:14,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792886820] [2023-04-01 12:03:14,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 12:03:14,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 12:03:14,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 12:03:15,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 12:03:15,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 12:03:15,000 INFO L87 Difference]: Start difference. First operand 199 states and 239 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 12:03:15,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 12:03:15,161 INFO L93 Difference]: Finished difference Result 535 states and 670 transitions. [2023-04-01 12:03:15,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 12:03:15,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 56 [2023-04-01 12:03:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 12:03:15,165 INFO L225 Difference]: With dead ends: 535 [2023-04-01 12:03:15,165 INFO L226 Difference]: Without dead ends: 358 [2023-04-01 12:03:15,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 12:03:15,167 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 61 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 12:03:15,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 396 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 12:03:15,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-04-01 12:03:15,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 340. [2023-04-01 12:03:15,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 191 states have (on average 1.3036649214659686) internal successors, (249), 220 states have internal predecessors, (249), 84 states have call successors, (84), 72 states have call predecessors, (84), 64 states have return successors, (86), 64 states have call predecessors, (86), 80 states have call successors, (86) [2023-04-01 12:03:15,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 419 transitions. [2023-04-01 12:03:15,249 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 419 transitions. Word has length 56 [2023-04-01 12:03:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 12:03:15,250 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 419 transitions. [2023-04-01 12:03:15,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 12:03:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 419 transitions. [2023-04-01 12:03:15,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-01 12:03:15,259 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:03:15,259 INFO L195 NwaCegarLoop]: 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] [2023-04-01 12:03:15,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 12:03:15,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:03:15,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:03:15,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1769755904, now seen corresponding path program 1 times [2023-04-01 12:03:15,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:03:15,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414930792] [2023-04-01 12:03:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:03:15,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 12:03:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:03:15,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 12:03:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 12:03:15,328 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 12:03:15,328 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 12:03:15,329 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 12:03:15,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 12:03:15,334 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 12:03:15,339 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 12:03:15,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 12:03:15 BoogieIcfgContainer [2023-04-01 12:03:15,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 12:03:15,398 INFO L158 Benchmark]: Toolchain (without parser) took 3465.09ms. Allocated memory was 173.0MB in the beginning and 254.8MB in the end (delta: 81.8MB). Free memory was 133.4MB in the beginning and 173.6MB in the end (delta: -40.1MB). Peak memory consumption was 43.2MB. Max. memory is 8.0GB. [2023-04-01 12:03:15,399 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 12:03:15,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.55ms. Allocated memory is still 173.0MB. Free memory was 133.1MB in the beginning and 115.1MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-01 12:03:15,401 INFO L158 Benchmark]: Boogie Preprocessor took 89.70ms. Allocated memory is still 173.0MB. Free memory was 115.1MB in the beginning and 111.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 12:03:15,406 INFO L158 Benchmark]: RCFGBuilder took 949.04ms. Allocated memory was 173.0MB in the beginning and 254.8MB in the end (delta: 81.8MB). Free memory was 111.8MB in the beginning and 202.4MB in the end (delta: -90.6MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. [2023-04-01 12:03:15,406 INFO L158 Benchmark]: TraceAbstraction took 2090.96ms. Allocated memory is still 254.8MB. Free memory was 201.9MB in the beginning and 173.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. [2023-04-01 12:03:15,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 328.55ms. Allocated memory is still 173.0MB. Free memory was 133.1MB in the beginning and 115.1MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 89.70ms. Allocated memory is still 173.0MB. Free memory was 115.1MB in the beginning and 111.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 949.04ms. Allocated memory was 173.0MB in the beginning and 254.8MB in the end (delta: 81.8MB). Free memory was 111.8MB in the beginning and 202.4MB in the end (delta: -90.6MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2090.96ms. Allocated memory is still 254.8MB. Free memory was 201.9MB in the beginning and 173.6MB in the end (delta: 28.3MB). Peak memory consumption was 28.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L97] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; [L175] int retValue_acc ; [L176] 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] [L180] 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] [L181] 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] [L182] 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] [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L182] 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] [L182] tmp = valid_product() [L184] 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] [L186] 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] [L187] 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] [L169] 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] [L755] int splverifierCounter ; [L756] int tmp ; [L757] int tmp___0 ; [L758] int tmp___1 ; [L759] int tmp___2 ; [L762] 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] [L764] 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] [L766] COND TRUE splverifierCounter < 4 [L772] tmp = __VERIFIER_nondet_int() [L774] 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] [L776] 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] [L839] COND TRUE waterLevel < 2 [L840] waterLevel = waterLevel + 1 [L776] 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] [L782] tmp___0 = __VERIFIER_nondet_int() [L784] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L792] tmp___2 = __VERIFIER_nondet_int() [L794] COND FALSE !(\read(tmp___2)) [L798] tmp___1 = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L802] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L742] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] systemActive = 0 [L802] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L809] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L613] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L620] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L628] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L568] int tmp ; [L569] int tmp___0 ; [L570] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L574] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); [L574] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L574] tmp = isMethaneLevelCritical() [L576] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L580] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); [L580] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L580] tmp___0 = getWaterLevel() [L582] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L584] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L584] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L584] tmp___1 = isPumpRunning() [L586] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L590] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L54] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 172 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 283 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 277 mSDsluCounter, 1119 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 711 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 360 IncrementalHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 408 mSDtfsCounter, 360 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 328 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-01 12:03:15,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...