/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 OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 01:01:51,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 01:01:51,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 01:01:51,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 01:01:51,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 01:01:51,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 01:01:51,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 01:01:51,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 01:01:51,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 01:01:51,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 01:01:51,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 01:01:51,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 01:01:51,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 01:01:51,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 01:01:51,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 01:01:51,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 01:01:51,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 01:01:51,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 01:01:51,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 01:01:51,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 01:01:51,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 01:01:51,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 01:01:51,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 01:01:51,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 01:01:51,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 01:01:51,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 01:01:51,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 01:01:51,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 01:01:51,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 01:01:51,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 01:01:51,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 01:01:51,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 01:01:51,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 01:01:51,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 01:01:51,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 01:01:51,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 01:01:51,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 01:01:51,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 01:01:51,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 01:01:51,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 01:01:51,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 01:01:51,087 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 [2023-04-03 01:01:51,105 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 01:01:51,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 01:01:51,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 01:01:51,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 01:01:51,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 01:01:51,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 01:01:51,106 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 01:01:51,107 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 01:01:51,107 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 01:01:51,107 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 01:01:51,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 01:01:51,107 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 01:01:51,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 01:01:51,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 01:01:51,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 01:01:51,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 01:01:51,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:01:51,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 01:01:51,109 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 01:01:51,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 01:01:51,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 01:01:51,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 01:01:51,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 01:01:51,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 01:01:51,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 01:01:51,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 01:01:51,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 01:01:51,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 01:01:51,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 01:01:51,327 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 01:01:51,328 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 01:01:51,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c [2023-04-03 01:01:52,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 01:01:52,529 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 01:01:52,529 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product01.cil.c [2023-04-03 01:01:52,558 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40fa75d4e/d990a6cc703846388227cb2f06b2d8d0/FLAG4dd88e497 [2023-04-03 01:01:52,569 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40fa75d4e/d990a6cc703846388227cb2f06b2d8d0 [2023-04-03 01:01:52,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 01:01:52,572 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 01:01:52,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 01:01:52,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 01:01:52,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 01:01:52,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51337be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52, skipping insertion in model container [2023-04-03 01:01:52,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 01:01:52,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 01:01:52,755 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_product01.cil.c[5053,5066] [2023-04-03 01:01:52,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:01:52,808 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 01:01:52,825 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_product01.cil.c[5053,5066] [2023-04-03 01:01:52,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 01:01:52,864 INFO L208 MainTranslator]: Completed translation [2023-04-03 01:01:52,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52 WrapperNode [2023-04-03 01:01:52,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 01:01:52,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 01:01:52,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 01:01:52,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 01:01:52,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 01:01:52,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 01:01:52,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 01:01:52,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 01:01:52,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (1/1) ... [2023-04-03 01:01:52,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 01:01:52,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 01:01:52,967 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) [2023-04-03 01:01:52,986 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 [2023-04-03 01:01:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 01:01:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 01:01:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 01:01:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 01:01:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 01:01:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 01:01:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 01:01:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 01:01:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 01:01:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 01:01:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 01:01:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 01:01:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 01:01:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 01:01:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 01:01:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-03 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 01:01:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 01:01:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 01:01:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 01:01:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 01:01:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 01:01:53,170 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 01:01:53,172 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 01:01:53,582 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 01:01:53,661 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 01:01:53,661 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 01:01:53,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:01:53 BoogieIcfgContainer [2023-04-03 01:01:53,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 01:01:53,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 01:01:53,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 01:01:53,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 01:01:53,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 01:01:52" (1/3) ... [2023-04-03 01:01:53,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cb9977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:01:53, skipping insertion in model container [2023-04-03 01:01:53,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 01:01:52" (2/3) ... [2023-04-03 01:01:53,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cb9977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 01:01:53, skipping insertion in model container [2023-04-03 01:01:53,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 01:01:53" (3/3) ... [2023-04-03 01:01:53,669 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2023-04-03 01:01:53,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 01:01:53,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 01:01:53,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 01:01:53,745 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;@5a6d49dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 01:01:53,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 01:01:53,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 57 states have internal predecessors, (62), 36 states have call successors, (36), 21 states have call predecessors, (36), 21 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-04-03 01:01:53,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 01:01:53,757 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:01:53,757 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] [2023-04-03 01:01:53,757 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:01:53,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:01:53,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1282069711, now seen corresponding path program 1 times [2023-04-03 01:01:53,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:01:53,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54530717] [2023-04-03 01:01:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:01:53,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:01:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:01:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:01:53,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:01:53,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54530717] [2023-04-03 01:01:53,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54530717] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:01:53,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:01:53,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 01:01:53,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571089743] [2023-04-03 01:01:53,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:01:53,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 01:01:53,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:01:53,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 01:01:53,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 01:01:53,971 INFO L87 Difference]: Start difference. First operand has 110 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 57 states have internal predecessors, (62), 36 states have call successors, (36), 21 states have call predecessors, (36), 21 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) 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) [2023-04-03 01:01:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:01:54,022 INFO L93 Difference]: Finished difference Result 149 states and 180 transitions. [2023-04-03 01:01:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 01:01:54,024 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 [2023-04-03 01:01:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:01:54,041 INFO L225 Difference]: With dead ends: 149 [2023-04-03 01:01:54,042 INFO L226 Difference]: Without dead ends: 75 [2023-04-03 01:01:54,044 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 [2023-04-03 01:01:54,046 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:01:54,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:01:54,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-04-03 01:01:54,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-04-03 01:01:54,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 39 states have (on average 1.205128205128205) internal successors, (47), 44 states have internal predecessors, (47), 21 states have call successors, (21), 19 states have call predecessors, (21), 14 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-04-03 01:01:54,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2023-04-03 01:01:54,084 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 47 [2023-04-03 01:01:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:01:54,087 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2023-04-03 01:01:54,087 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) [2023-04-03 01:01:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2023-04-03 01:01:54,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-03 01:01:54,089 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:01:54,089 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] [2023-04-03 01:01:54,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 01:01:54,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:01:54,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:01:54,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1898149895, now seen corresponding path program 1 times [2023-04-03 01:01:54,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:01:54,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608303694] [2023-04-03 01:01:54,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:01:54,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:01:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:01:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:01:54,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:01:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608303694] [2023-04-03 01:01:54,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608303694] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:01:54,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:01:54,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:01:54,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203022712] [2023-04-03 01:01:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:01:54,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:01:54,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:01:54,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:01:54,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:01:54,202 INFO L87 Difference]: Start difference. First operand 75 states and 84 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) [2023-04-03 01:01:54,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:01:54,232 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2023-04-03 01:01:54,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:01:54,233 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 [2023-04-03 01:01:54,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:01:54,234 INFO L225 Difference]: With dead ends: 107 [2023-04-03 01:01:54,234 INFO L226 Difference]: Without dead ends: 67 [2023-04-03 01:01:54,235 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 [2023-04-03 01:01:54,236 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:01:54,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 116 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:01:54,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-04-03 01:01:54,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-04-03 01:01:54,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 39 states have internal predecessors, (41), 18 states have call successors, (18), 18 states have call predecessors, (18), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-04-03 01:01:54,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2023-04-03 01:01:54,248 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 48 [2023-04-03 01:01:54,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:01:54,248 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2023-04-03 01:01:54,248 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) [2023-04-03 01:01:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2023-04-03 01:01:54,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-03 01:01:54,250 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:01:54,250 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] [2023-04-03 01:01:54,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 01:01:54,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:01:54,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:01:54,250 INFO L85 PathProgramCache]: Analyzing trace with hash -682677875, now seen corresponding path program 1 times [2023-04-03 01:01:54,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:01:54,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893466623] [2023-04-03 01:01:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:01:54,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:01:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:01:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:01:54,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:01:54,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893466623] [2023-04-03 01:01:54,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893466623] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:01:54,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:01:54,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 01:01:54,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884488785] [2023-04-03 01:01:54,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:01:54,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 01:01:54,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:01:54,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 01:01:54,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 01:01:54,315 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 01:01:54,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:01:54,347 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2023-04-03 01:01:54,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 01:01:54,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 50 [2023-04-03 01:01:54,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:01:54,348 INFO L225 Difference]: With dead ends: 112 [2023-04-03 01:01:54,348 INFO L226 Difference]: Without dead ends: 67 [2023-04-03 01:01:54,349 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 [2023-04-03 01:01:54,349 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 50 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-03 01:01:54,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 62 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 01:01:54,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-04-03 01:01:54,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-04-03 01:01:54,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 38 states have internal predecessors, (40), 18 states have call successors, (18), 18 states have call predecessors, (18), 14 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-04-03 01:01:54,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2023-04-03 01:01:54,361 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 50 [2023-04-03 01:01:54,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:01:54,361 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2023-04-03 01:01:54,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 01:01:54,362 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2023-04-03 01:01:54,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-03 01:01:54,363 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:01:54,363 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] [2023-04-03 01:01:54,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 01:01:54,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:01:54,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:01:54,364 INFO L85 PathProgramCache]: Analyzing trace with hash 7669498, now seen corresponding path program 1 times [2023-04-03 01:01:54,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:01:54,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662170581] [2023-04-03 01:01:54,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:01:54,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:01:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 01:01:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 01:01:54,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 01:01:54,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662170581] [2023-04-03 01:01:54,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662170581] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 01:01:54,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 01:01:54,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 01:01:54,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629135083] [2023-04-03 01:01:54,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 01:01:54,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 01:01:54,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 01:01:54,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 01:01:54,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 01:01:54,548 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2023-04-03 01:01:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 01:01:54,672 INFO L93 Difference]: Finished difference Result 149 states and 169 transitions. [2023-04-03 01:01:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 01:01:54,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 53 [2023-04-03 01:01:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 01:01:54,679 INFO L225 Difference]: With dead ends: 149 [2023-04-03 01:01:54,679 INFO L226 Difference]: Without dead ends: 104 [2023-04-03 01:01:54,680 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 [2023-04-03 01:01:54,688 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 31 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 01:01:54,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 260 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 01:01:54,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-04-03 01:01:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-04-03 01:01:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 58 states have internal predecessors, (63), 24 states have call successors, (24), 24 states have call predecessors, (24), 20 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2023-04-03 01:01:54,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2023-04-03 01:01:54,709 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 53 [2023-04-03 01:01:54,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 01:01:54,710 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2023-04-03 01:01:54,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2023-04-03 01:01:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2023-04-03 01:01:54,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-04-03 01:01:54,716 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 01:01:54,716 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] [2023-04-03 01:01:54,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 01:01:54,717 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 01:01:54,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 01:01:54,717 INFO L85 PathProgramCache]: Analyzing trace with hash -950391173, now seen corresponding path program 1 times [2023-04-03 01:01:54,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 01:01:54,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771369290] [2023-04-03 01:01:54,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 01:01:54,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 01:01:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:01:54,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-03 01:01:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-03 01:01:54,790 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-03 01:01:54,790 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-03 01:01:54,791 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 01:01:54,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 01:01:54,794 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-03 01:01:54,797 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 01:01:54,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 01:01:54 BoogieIcfgContainer [2023-04-03 01:01:54,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 01:01:54,839 INFO L158 Benchmark]: Toolchain (without parser) took 2266.98ms. Allocated memory is still 284.2MB. Free memory was 233.8MB in the beginning and 148.5MB in the end (delta: 85.3MB). Peak memory consumption was 85.9MB. Max. memory is 8.0GB. [2023-04-03 01:01:54,839 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 01:01:54,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.38ms. Allocated memory is still 284.2MB. Free memory was 233.8MB in the beginning and 216.0MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 01:01:54,840 INFO L158 Benchmark]: Boogie Preprocessor took 59.29ms. Allocated memory is still 284.2MB. Free memory was 216.0MB in the beginning and 212.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-03 01:01:54,840 INFO L158 Benchmark]: RCFGBuilder took 737.58ms. Allocated memory is still 284.2MB. Free memory was 212.8MB in the beginning and 156.2MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2023-04-03 01:01:54,840 INFO L158 Benchmark]: TraceAbstraction took 1173.54ms. Allocated memory is still 284.2MB. Free memory was 155.7MB in the beginning and 148.5MB in the end (delta: 7.2MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2023-04-03 01:01:54,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 292.38ms. Allocated memory is still 284.2MB. Free memory was 233.8MB in the beginning and 216.0MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.29ms. Allocated memory is still 284.2MB. Free memory was 216.0MB in the beginning and 212.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 737.58ms. Allocated memory is still 284.2MB. Free memory was 212.8MB in the beginning and 156.2MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1173.54ms. Allocated memory is still 284.2MB. Free memory was 155.7MB in the beginning and 148.5MB in the end (delta: 7.2MB). Peak memory consumption was 8.3MB. 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: 312]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int pumpRunning = 0; [L59] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L662] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L390] int retValue_acc ; [L391] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L395] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L396] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L397] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L263] int retValue_acc ; [L266] retValue_acc = 1 [L267] return (retValue_acc); [L397] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L397] tmp = valid_product() [L399] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L401] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L402] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] CALL test() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int splverifierCounter ; [L171] int tmp ; [L172] int tmp___0 ; [L173] int tmp___1 ; [L174] int tmp___2 ; [L177] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L179] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L181] COND TRUE splverifierCounter < 4 [L187] tmp = __VERIFIER_nondet_int() [L189] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L191] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L191] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L197] tmp___0 = __VERIFIER_nondet_int() [L199] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L207] tmp___2 = __VERIFIER_nondet_int() [L209] COND FALSE !(\read(tmp___2)) [L213] tmp___1 = __VERIFIER_nondet_int() [L215] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=53, 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] [L222] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L66] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L81] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L275] int tmp ; [L276] int tmp___0 ; [L277] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L281] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L281] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L281] tmp = isMethaneLevelCritical() [L283] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L287] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L287] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L287] tmp___0 = getWaterLevel() [L289] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L291] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L121] int retValue_acc ; [L124] retValue_acc = pumpRunning [L125] return (retValue_acc); [L291] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L291] tmp___1 = isPumpRunning() [L293] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L297] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L312] reach_error() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 155 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 521 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 269 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 302 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! [2023-04-03 01:01:54,877 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...