/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_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:57:34,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:57:34,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:57:34,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:57:34,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:57:34,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:57:34,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:57:34,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:57:34,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:57:34,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:57:34,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:57:34,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:57:34,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:57:34,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:57:34,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:57:34,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:57:34,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:57:34,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:57:34,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:57:34,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:57:34,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:57:34,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:57:34,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:57:34,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:57:34,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:57:34,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:57:34,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:57:34,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:57:34,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:57:34,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:57:34,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:57:34,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:57:34,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:57:34,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:57:34,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:57:34,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:57:34,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:57:34,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:57:34,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:57:34,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:57:34,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:57:34,323 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 05:57:34,354 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:57:34,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:57:34,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:57:34,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:57:34,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:57:34,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:57:34,356 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:57:34,357 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:57:34,357 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:57:34,357 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:57:34,358 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:57:34,358 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:57:34,358 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:57:34,358 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:57:34,358 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:57:34,358 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:57:34,358 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:57:34,359 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:57:34,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:57:34,360 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:57:34,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:57:34,361 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:57:34,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:57:34,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:57:34,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:57:34,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:57:34,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:57:34,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:57:34,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:57:34,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:57:34,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:57:34,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:57:34,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:57:34,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:57:34,362 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:57:34,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:57:34,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:57:34,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:57:34,603 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:57:34,604 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:57:34,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2023-04-01 05:57:35,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:57:36,002 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:57:36,002 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product42.cil.c [2023-04-01 05:57:36,013 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ff18805/c674304ed76f4b9586b31a07c01da6a3/FLAG4a7e955c6 [2023-04-01 05:57:36,026 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30ff18805/c674304ed76f4b9586b31a07c01da6a3 [2023-04-01 05:57:36,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:57:36,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:57:36,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:57:36,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:57:36,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:57:36,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ad36fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36, skipping insertion in model container [2023-04-01 05:57:36,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:57:36,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:57:36,285 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_product42.cil.c[7477,7490] [2023-04-01 05:57:36,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:57:36,343 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:57:36,375 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_product42.cil.c[7477,7490] [2023-04-01 05:57:36,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:57:36,453 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:57:36,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36 WrapperNode [2023-04-01 05:57:36,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:57:36,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:57:36,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:57:36,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:57:36,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:57:36,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:57:36,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:57:36,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:57:36,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (1/1) ... [2023-04-01 05:57:36,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:57:36,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:57:36,590 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 05:57:36,615 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 05:57:36,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:57:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:57:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:57:36,632 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:57:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 05:57:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 05:57:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:57:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 05:57:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 05:57:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:57:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:57:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-01 05:57:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:57:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:57:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:57:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:57:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:57:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:57:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 05:57:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 05:57:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 05:57:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 05:57:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 05:57:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 05:57:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:57:36,639 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:57:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 05:57:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:57:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:57:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:57:36,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:57:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-01 05:57:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 05:57:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 05:57:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 05:57:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 05:57:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 05:57:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:57:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:57:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:57:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:57:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:57:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:57:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:57:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:57:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:57:36,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:57:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:57:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:57:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:57:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:57:36,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:57:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:57:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:57:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:57:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:57:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:57:36,800 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:57:36,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:57:37,397 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:57:37,566 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:57:37,566 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 05:57:37,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:57:37 BoogieIcfgContainer [2023-04-01 05:57:37,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:57:37,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:57:37,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:57:37,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:57:37,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:57:36" (1/3) ... [2023-04-01 05:57:37,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef91479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:57:37, skipping insertion in model container [2023-04-01 05:57:37,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:57:36" (2/3) ... [2023-04-01 05:57:37,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ef91479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:57:37, skipping insertion in model container [2023-04-01 05:57:37,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:57:37" (3/3) ... [2023-04-01 05:57:37,579 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42.cil.c [2023-04-01 05:57:37,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:57:37,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:57:37,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:57:37,664 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;@2007860a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:57:37,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:57:37,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 77 states have internal predecessors, (82), 45 states have call successors, (45), 28 states have call predecessors, (45), 28 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2023-04-01 05:57:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 05:57:37,681 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:37,682 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 05:57:37,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:37,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:37,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1185544218, now seen corresponding path program 1 times [2023-04-01 05:57:37,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:37,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630684201] [2023-04-01 05:57:37,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:37,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:37,922 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 05:57:37,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:37,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630684201] [2023-04-01 05:57:37,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630684201] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:37,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:37,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:57:37,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269147771] [2023-04-01 05:57:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:37,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:57:37,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:37,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:57:37,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:57:37,962 INFO L87 Difference]: Start difference. First operand has 141 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 77 states have internal predecessors, (82), 45 states have call successors, (45), 28 states have call predecessors, (45), 28 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) 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 05:57:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:38,068 INFO L93 Difference]: Finished difference Result 215 states and 258 transitions. [2023-04-01 05:57:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:57:38,071 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 05:57:38,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:38,080 INFO L225 Difference]: With dead ends: 215 [2023-04-01 05:57:38,080 INFO L226 Difference]: Without dead ends: 108 [2023-04-01 05:57:38,086 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 05:57:38,091 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:38,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:57:38,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-04-01 05:57:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2023-04-01 05:57:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 65 states have internal predecessors, (68), 30 states have call successors, (30), 26 states have call predecessors, (30), 21 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-01 05:57:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2023-04-01 05:57:38,137 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 47 [2023-04-01 05:57:38,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:38,137 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2023-04-01 05:57:38,137 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 05:57:38,138 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2023-04-01 05:57:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-01 05:57:38,140 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:38,141 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 05:57:38,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:57:38,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:38,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:38,142 INFO L85 PathProgramCache]: Analyzing trace with hash 211221434, now seen corresponding path program 1 times [2023-04-01 05:57:38,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:38,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735838475] [2023-04-01 05:57:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:38,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:38,316 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 05:57:38,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:38,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735838475] [2023-04-01 05:57:38,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735838475] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:38,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:38,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:57:38,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302614269] [2023-04-01 05:57:38,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:38,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:57:38,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:38,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:57:38,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:57:38,323 INFO L87 Difference]: Start difference. First operand 108 states and 123 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 05:57:38,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:38,405 INFO L93 Difference]: Finished difference Result 169 states and 192 transitions. [2023-04-01 05:57:38,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:57:38,410 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 05:57:38,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:38,412 INFO L225 Difference]: With dead ends: 169 [2023-04-01 05:57:38,412 INFO L226 Difference]: Without dead ends: 100 [2023-04-01 05:57:38,413 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 05:57:38,414 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 9 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:38,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 181 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:57:38,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-04-01 05:57:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-04-01 05:57:38,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 60 states have internal predecessors, (62), 27 states have call successors, (27), 25 states have call predecessors, (27), 21 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 05:57:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2023-04-01 05:57:38,430 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 48 [2023-04-01 05:57:38,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:38,432 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2023-04-01 05:57:38,432 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 05:57:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2023-04-01 05:57:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 05:57:38,443 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:38,443 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 05:57:38,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:57:38,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:38,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:38,445 INFO L85 PathProgramCache]: Analyzing trace with hash 2011014351, now seen corresponding path program 1 times [2023-04-01 05:57:38,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:38,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431084194] [2023-04-01 05:57:38,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:38,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:38,717 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 05:57:38,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:38,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431084194] [2023-04-01 05:57:38,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431084194] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:38,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:38,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:57:38,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5840073] [2023-04-01 05:57:38,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:38,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:57:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:38,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:57:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:57:38,720 INFO L87 Difference]: Start difference. First operand 100 states and 112 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 05:57:38,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:38,911 INFO L93 Difference]: Finished difference Result 178 states and 203 transitions. [2023-04-01 05:57:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 05:57:38,912 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 05:57:38,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:38,917 INFO L225 Difference]: With dead ends: 178 [2023-04-01 05:57:38,917 INFO L226 Difference]: Without dead ends: 100 [2023-04-01 05:57:38,924 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 05:57:38,928 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 101 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:38,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 272 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:57:38,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-04-01 05:57:38,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-04-01 05:57:38,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 51 states have (on average 1.196078431372549) internal successors, (61), 59 states have internal predecessors, (61), 27 states have call successors, (27), 25 states have call predecessors, (27), 21 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 05:57:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 111 transitions. [2023-04-01 05:57:38,953 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 111 transitions. Word has length 51 [2023-04-01 05:57:38,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:38,954 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 111 transitions. [2023-04-01 05:57:38,954 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 05:57:38,954 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 111 transitions. [2023-04-01 05:57:38,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-01 05:57:38,955 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:38,955 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 05:57:38,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:57:38,955 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:38,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:38,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1193645220, now seen corresponding path program 1 times [2023-04-01 05:57:38,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:38,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926709221] [2023-04-01 05:57:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:38,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:39,073 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 05:57:39,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:39,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926709221] [2023-04-01 05:57:39,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926709221] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:39,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:39,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 05:57:39,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790835389] [2023-04-01 05:57:39,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:39,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 05:57:39,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:39,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 05:57:39,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 05:57:39,076 INFO L87 Difference]: Start difference. First operand 100 states and 111 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 05:57:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:39,414 INFO L93 Difference]: Finished difference Result 267 states and 312 transitions. [2023-04-01 05:57:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 05:57:39,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2023-04-01 05:57:39,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:39,421 INFO L225 Difference]: With dead ends: 267 [2023-04-01 05:57:39,421 INFO L226 Difference]: Without dead ends: 189 [2023-04-01 05:57:39,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:57:39,432 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 162 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:39,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 128 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 05:57:39,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-04-01 05:57:39,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 172. [2023-04-01 05:57:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 93 states have (on average 1.1935483870967742) internal successors, (111), 102 states have internal predecessors, (111), 40 states have call successors, (40), 39 states have call predecessors, (40), 38 states have return successors, (41), 37 states have call predecessors, (41), 36 states have call successors, (41) [2023-04-01 05:57:39,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 192 transitions. [2023-04-01 05:57:39,466 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 192 transitions. Word has length 59 [2023-04-01 05:57:39,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:39,466 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 192 transitions. [2023-04-01 05:57:39,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 05:57:39,467 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 192 transitions. [2023-04-01 05:57:39,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-01 05:57:39,469 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:39,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:57:39,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:57:39,470 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:39,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:39,470 INFO L85 PathProgramCache]: Analyzing trace with hash 958425720, now seen corresponding path program 1 times [2023-04-01 05:57:39,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:39,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951190562] [2023-04-01 05:57:39,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:39,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:39,675 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 05:57:39,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:39,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951190562] [2023-04-01 05:57:39,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951190562] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:39,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:39,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:57:39,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327926905] [2023-04-01 05:57:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:39,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:57:39,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:57:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:57:39,679 INFO L87 Difference]: Start difference. First operand 172 states and 192 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-01 05:57:39,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:39,838 INFO L93 Difference]: Finished difference Result 430 states and 496 transitions. [2023-04-01 05:57:39,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:57:39,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 68 [2023-04-01 05:57:39,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:39,844 INFO L225 Difference]: With dead ends: 430 [2023-04-01 05:57:39,844 INFO L226 Difference]: Without dead ends: 280 [2023-04-01 05:57:39,845 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 05:57:39,846 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 66 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:39,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 414 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:57:39,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-04-01 05:57:39,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 270. [2023-04-01 05:57:39,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 150 states have (on average 1.1933333333333334) internal successors, (179), 164 states have internal predecessors, (179), 60 states have call successors, (60), 58 states have call predecessors, (60), 59 states have return successors, (66), 58 states have call predecessors, (66), 56 states have call successors, (66) [2023-04-01 05:57:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 305 transitions. [2023-04-01 05:57:39,911 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 305 transitions. Word has length 68 [2023-04-01 05:57:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:39,912 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 305 transitions. [2023-04-01 05:57:39,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-01 05:57:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 305 transitions. [2023-04-01 05:57:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-04-01 05:57:39,913 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:39,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:57:39,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:57:39,914 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:39,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:39,914 INFO L85 PathProgramCache]: Analyzing trace with hash 325906268, now seen corresponding path program 1 times [2023-04-01 05:57:39,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:39,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481961952] [2023-04-01 05:57:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:39,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:40,216 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 05:57:40,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:40,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481961952] [2023-04-01 05:57:40,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481961952] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:40,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:40,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-01 05:57:40,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361916512] [2023-04-01 05:57:40,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:40,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-01 05:57:40,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:40,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-01 05:57:40,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-01 05:57:40,218 INFO L87 Difference]: Start difference. First operand 270 states and 305 transitions. Second operand has 14 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-01 05:57:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:40,546 INFO L93 Difference]: Finished difference Result 535 states and 621 transitions. [2023-04-01 05:57:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-01 05:57:40,548 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) Word has length 71 [2023-04-01 05:57:40,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:40,550 INFO L225 Difference]: With dead ends: 535 [2023-04-01 05:57:40,550 INFO L226 Difference]: Without dead ends: 385 [2023-04-01 05:57:40,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-04-01 05:57:40,552 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 313 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:40,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 952 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 05:57:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-04-01 05:57:40,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 365. [2023-04-01 05:57:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 206 states have (on average 1.1941747572815533) internal successors, (246), 224 states have internal predecessors, (246), 79 states have call successors, (79), 76 states have call predecessors, (79), 79 states have return successors, (93), 79 states have call predecessors, (93), 75 states have call successors, (93) [2023-04-01 05:57:40,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 418 transitions. [2023-04-01 05:57:40,590 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 418 transitions. Word has length 71 [2023-04-01 05:57:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:40,590 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 418 transitions. [2023-04-01 05:57:40,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (19), 3 states have call predecessors, (19), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-01 05:57:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 418 transitions. [2023-04-01 05:57:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-01 05:57:40,592 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:40,592 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:57:40,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 05:57:40,592 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:40,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:40,593 INFO L85 PathProgramCache]: Analyzing trace with hash 804179452, now seen corresponding path program 1 times [2023-04-01 05:57:40,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:40,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770985092] [2023-04-01 05:57:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:40,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 05:57:40,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:40,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770985092] [2023-04-01 05:57:40,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770985092] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:40,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:40,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-01 05:57:40,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994451455] [2023-04-01 05:57:40,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:40,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 05:57:40,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 05:57:40,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-01 05:57:40,776 INFO L87 Difference]: Start difference. First operand 365 states and 418 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (15), 6 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-01 05:57:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:41,101 INFO L93 Difference]: Finished difference Result 852 states and 1012 transitions. [2023-04-01 05:57:41,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-01 05:57:41,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (15), 6 states have call predecessors, (15), 3 states have call successors, (15) Word has length 81 [2023-04-01 05:57:41,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:41,105 INFO L225 Difference]: With dead ends: 852 [2023-04-01 05:57:41,106 INFO L226 Difference]: Without dead ends: 509 [2023-04-01 05:57:41,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-04-01 05:57:41,108 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 55 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:41,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 1063 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 05:57:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-04-01 05:57:41,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 491. [2023-04-01 05:57:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 281 states have (on average 1.1708185053380782) internal successors, (329), 302 states have internal predecessors, (329), 108 states have call successors, (108), 103 states have call predecessors, (108), 101 states have return successors, (130), 103 states have call predecessors, (130), 104 states have call successors, (130) [2023-04-01 05:57:41,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 567 transitions. [2023-04-01 05:57:41,164 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 567 transitions. Word has length 81 [2023-04-01 05:57:41,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:41,165 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 567 transitions. [2023-04-01 05:57:41,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (15), 6 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-01 05:57:41,165 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 567 transitions. [2023-04-01 05:57:41,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-01 05:57:41,167 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:57:41,167 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:57:41,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 05:57:41,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:57:41,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:57:41,168 INFO L85 PathProgramCache]: Analyzing trace with hash -855049254, now seen corresponding path program 1 times [2023-04-01 05:57:41,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:57:41,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824671879] [2023-04-01 05:57:41,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:57:41,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:57:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:57:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 05:57:41,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:57:41,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824671879] [2023-04-01 05:57:41,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824671879] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:57:41,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:57:41,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-01 05:57:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643145785] [2023-04-01 05:57:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:57:41,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 05:57:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:57:41,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 05:57:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-04-01 05:57:41,323 INFO L87 Difference]: Start difference. First operand 491 states and 567 transitions. Second operand has 10 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-01 05:57:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:57:41,524 INFO L93 Difference]: Finished difference Result 961 states and 1114 transitions. [2023-04-01 05:57:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 05:57:41,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2023-04-01 05:57:41,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:57:41,526 INFO L225 Difference]: With dead ends: 961 [2023-04-01 05:57:41,526 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 05:57:41,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-01 05:57:41,532 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 85 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:57:41,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 943 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:57:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 05:57:41,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 05:57:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 05:57:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 05:57:41,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2023-04-01 05:57:41,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:57:41,534 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 05:57:41,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2023-04-01 05:57:41,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 05:57:41,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 05:57:41,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:57:41,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 05:57:41,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 05:57:43,346 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-01 05:57:43,346 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-01 05:57:43,346 INFO L899 garLoopResultBuilder]: For program point L630(lines 630 634) no Hoare annotation was computed. [2023-04-01 05:57:43,346 INFO L899 garLoopResultBuilder]: For program point L624-2(lines 624 645) no Hoare annotation was computed. [2023-04-01 05:57:43,346 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 599 654) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 599 654) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point L646(lines 623 647) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point L700(line 700) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point L700-1(line 700) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 655 714) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 691) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 655 714) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 655 714) no Hoare annotation was computed. [2023-04-01 05:57:43,347 INFO L899 garLoopResultBuilder]: For program point L681-2(lines 681 706) no Hoare annotation was computed. [2023-04-01 05:57:43,348 INFO L899 garLoopResultBuilder]: For program point L707(lines 680 708) no Hoare annotation was computed. [2023-04-01 05:57:43,348 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 537 545) no Hoare annotation was computed. [2023-04-01 05:57:43,348 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 537 545) the Hoare annotation is: true [2023-04-01 05:57:43,348 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 130 152) no Hoare annotation was computed. [2023-04-01 05:57:43,348 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,348 INFO L895 garLoopResultBuilder]: At program point L142-1(line 142) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= main_~tmp~0 1) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,349 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-04-01 05:57:43,349 INFO L899 garLoopResultBuilder]: For program point L140-1(lines 140 147) no Hoare annotation was computed. [2023-04-01 05:57:43,349 INFO L899 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2023-04-01 05:57:43,349 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 130 152) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,349 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,349 INFO L895 garLoopResultBuilder]: At program point L136(line 136) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,349 INFO L895 garLoopResultBuilder]: At program point L136-1(line 136) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,349 INFO L899 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L96(line 96) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 85 108) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 85 108) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 85 108) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L102(line 102) no Hoare annotation was computed. [2023-04-01 05:57:43,350 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L899 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 523 529) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 523 529) the Hoare annotation is: true [2023-04-01 05:57:43,351 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 866 911) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 866 911) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 488 501) the Hoare annotation is: true [2023-04-01 05:57:43,351 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDryEXIT(lines 488 501) no Hoare annotation was computed. [2023-04-01 05:57:43,351 INFO L895 garLoopResultBuilder]: At program point L284(line 284) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-04-01 05:57:43,352 INFO L899 garLoopResultBuilder]: For program point L284-1(lines 265 289) no Hoare annotation was computed. [2023-04-01 05:57:43,352 INFO L895 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)))))) [2023-04-01 05:57:43,352 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 265 289) no Hoare annotation was computed. [2023-04-01 05:57:43,352 INFO L895 garLoopResultBuilder]: At program point L275(line 275) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (or (not (= 2 ~waterLevel~0)) (= 1 processEnvironment_~tmp~2)))))) [2023-04-01 05:57:43,352 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 281) no Hoare annotation was computed. [2023-04-01 05:57:43,352 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-04-01 05:57:43,352 INFO L899 garLoopResultBuilder]: For program point L271-1(line 271) no Hoare annotation was computed. [2023-04-01 05:57:43,352 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 286) no Hoare annotation was computed. [2023-04-01 05:57:43,353 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 265 289) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-04-01 05:57:43,353 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 257 263) no Hoare annotation was computed. [2023-04-01 05:57:43,353 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 257 263) the Hoare annotation is: true [2023-04-01 05:57:43,353 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 155 220) no Hoare annotation was computed. [2023-04-01 05:57:43,353 INFO L895 garLoopResultBuilder]: At program point L213(lines 164 214) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,353 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 155 220) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,353 INFO L895 garLoopResultBuilder]: At program point L203-2(lines 195 208) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (= ~pumpRunning~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2023-04-01 05:57:43,353 INFO L899 garLoopResultBuilder]: For program point L166(lines 165 212) no Hoare annotation was computed. [2023-04-01 05:57:43,354 INFO L895 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (= ~pumpRunning~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2023-04-01 05:57:43,354 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 208) no Hoare annotation was computed. [2023-04-01 05:57:43,354 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (= ~pumpRunning~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2023-04-01 05:57:43,354 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 191) no Hoare annotation was computed. [2023-04-01 05:57:43,354 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 185 191) no Hoare annotation was computed. [2023-04-01 05:57:43,354 INFO L895 garLoopResultBuilder]: At program point L210(lines 165 212) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (= ~pumpRunning~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1)) (and .cse2 .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (and .cse2 .cse0 (not (= 2 ~waterLevel~0)) .cse1))) [2023-04-01 05:57:43,354 INFO L895 garLoopResultBuilder]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (= ~pumpRunning~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2023-04-01 05:57:43,354 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 181) no Hoare annotation was computed. [2023-04-01 05:57:43,355 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 175 181) no Hoare annotation was computed. [2023-04-01 05:57:43,355 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 155 220) no Hoare annotation was computed. [2023-04-01 05:57:43,355 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 456 478) no Hoare annotation was computed. [2023-04-01 05:57:43,355 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 456 478) no Hoare annotation was computed. [2023-04-01 05:57:43,355 INFO L895 garLoopResultBuilder]: At program point L304(line 304) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 05:57:43,355 INFO L899 garLoopResultBuilder]: For program point L304-1(line 304) no Hoare annotation was computed. [2023-04-01 05:57:43,355 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 299 315) no Hoare annotation was computed. [2023-04-01 05:57:43,355 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 299 315) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 05:57:43,355 INFO L895 garLoopResultBuilder]: At program point L310(line 310) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 activatePump_~tmp~3)) .cse1) (or .cse0 (= ~methaneLevelCritical~0 0) .cse1))) [2023-04-01 05:57:43,356 INFO L899 garLoopResultBuilder]: For program point L310-1(lines 299 315) no Hoare annotation was computed. [2023-04-01 05:57:43,356 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 312) no Hoare annotation was computed. [2023-04-01 05:57:43,356 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevelEXIT(lines 380 398) no Hoare annotation was computed. [2023-04-01 05:57:43,356 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 380 398) the Hoare annotation is: true [2023-04-01 05:57:43,356 INFO L902 garLoopResultBuilder]: At program point L387(line 387) the Hoare annotation is: true [2023-04-01 05:57:43,356 INFO L899 garLoopResultBuilder]: For program point L387-1(line 387) no Hoare annotation was computed. [2023-04-01 05:57:43,356 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 479 487) the Hoare annotation is: true [2023-04-01 05:57:43,356 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 479 487) no Hoare annotation was computed. [2023-04-01 05:57:43,360 INFO L895 garLoopResultBuilder]: At program point L246(line 246) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or .cse1 (= ~pumpRunning~0 0) .cse0) (or .cse1 .cse0 (not (= 2 ~waterLevel~0)) (= |old(~waterLevel~0)| 2)))) [2023-04-01 05:57:43,361 INFO L895 garLoopResultBuilder]: At program point L244(lines 244 250) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse7 (= 1 ~systemActive~0)) (.cse8 (= |old(~pumpRunning~0)| 0)) (.cse3 (= ~methaneLevelCritical~0 0))) (let ((.cse4 (and .cse5 .cse7 .cse8 (not .cse3))) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not .cse8)) (.cse0 (not .cse7)) (.cse6 (not (= 2 ~waterLevel~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1) (or .cse2 .cse3 .cse0 .cse4) (or .cse2 .cse0 (and .cse5 .cse6) .cse4 .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or .cse2 .cse0 .cse6 (= |old(~waterLevel~0)| 2))))) [2023-04-01 05:57:43,361 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-04-01 05:57:43,361 INFO L899 garLoopResultBuilder]: For program point L237(lines 236 255) no Hoare annotation was computed. [2023-04-01 05:57:43,361 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 233 256) no Hoare annotation was computed. [2023-04-01 05:57:43,361 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 233 256) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= ~waterLevel~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= 2 ~waterLevel~0))) (.cse3 (= |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (= ~pumpRunning~0 1)) (or .cse0 .cse2 .cse1 .cse3) (or .cse4 .cse0 .cse1 .cse5) (or .cse6 .cse4 .cse0 .cse5) (or .cse6 (= ~pumpRunning~0 0) .cse0) (or .cse6 .cse0 .cse2 .cse3))) [2023-04-01 05:57:43,361 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 233 256) no Hoare annotation was computed. [2023-04-01 05:57:43,361 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-04-01 05:57:43,361 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-04-01 05:57:43,362 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-04-01 05:57:43,362 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-04-01 05:57:43,362 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-04-01 05:57:43,362 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2023-04-01 05:57:43,362 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-04-01 05:57:43,362 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-04-01 05:57:43,362 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-04-01 05:57:43,362 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 447 455) the Hoare annotation is: true [2023-04-01 05:57:43,362 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 447 455) no Hoare annotation was computed. [2023-04-01 05:57:43,362 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 411 422) no Hoare annotation was computed. [2023-04-01 05:57:43,362 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 411 422) the Hoare annotation is: true [2023-04-01 05:57:43,363 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 399 406) no Hoare annotation was computed. [2023-04-01 05:57:43,364 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 399 406) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or .cse0 .cse1 (not (= ~pumpRunning~0 1))) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1))) [2023-04-01 05:57:43,364 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 423 434) no Hoare annotation was computed. [2023-04-01 05:57:43,364 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 423 434) the Hoare annotation is: true [2023-04-01 05:57:43,364 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 503 510) the Hoare annotation is: true [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 507) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 503 510) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 530 536) the Hoare annotation is: true [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 530 536) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 335 343) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 335 343) the Hoare annotation is: true [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point L374(line 374) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point L374-1(line 374) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 344 379) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 344 379) no Hoare annotation was computed. [2023-04-01 05:57:43,365 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 553 598) no Hoare annotation was computed. [2023-04-01 05:57:43,366 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 553 598) no Hoare annotation was computed. [2023-04-01 05:57:43,366 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 117 126) no Hoare annotation was computed. [2023-04-01 05:57:43,366 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 117 126) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:57:43,366 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 117 126) no Hoare annotation was computed. [2023-04-01 05:57:43,366 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 324 334) no Hoare annotation was computed. [2023-04-01 05:57:43,366 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 324 334) the Hoare annotation is: true [2023-04-01 05:57:43,366 INFO L902 garLoopResultBuilder]: At program point L329(line 329) the Hoare annotation is: true [2023-04-01 05:57:43,366 INFO L899 garLoopResultBuilder]: For program point L329-1(line 329) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 316 323) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 316 323) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 820 865) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 820 865) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 290 297) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 290 297) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 513 522) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 513 522) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point L766-2(lines 766 786) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point L787(lines 765 788) no Hoare annotation was computed. [2023-04-01 05:57:43,367 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 762) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 717 819) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 717 819) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point L767(lines 766 786) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point L798(line 798) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point L798-1(line 798) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 804) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 717 819) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point L782(line 782) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point L782-1(line 782) no Hoare annotation was computed. [2023-04-01 05:57:43,368 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 745) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 435 446) the Hoare annotation is: true [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 435 446) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point L930-1(line 930) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 941) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point L928-1(lines 913 945) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L895 garLoopResultBuilder]: At program point L926(line 926) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0) (not (= 1 ~systemActive~0))) [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point L926-1(line 926) no Hoare annotation was computed. [2023-04-01 05:57:43,369 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification3_spec__1EXIT(lines 913 945) no Hoare annotation was computed. [2023-04-01 05:57:43,370 INFO L899 garLoopResultBuilder]: For program point L922(lines 922 942) no Hoare annotation was computed. [2023-04-01 05:57:43,370 INFO L902 garLoopResultBuilder]: At program point L920(line 920) the Hoare annotation is: true [2023-04-01 05:57:43,370 INFO L899 garLoopResultBuilder]: For program point L920-1(line 920) no Hoare annotation was computed. [2023-04-01 05:57:43,370 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 913 945) the Hoare annotation is: true [2023-04-01 05:57:43,370 INFO L895 garLoopResultBuilder]: At program point L936(line 936) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~methaneLevelCritical~0 0) .cse1) (or .cse1 (not (= ~pumpRunning~0 1))) (or .cse0 (= 2 ~waterLevel~0) .cse1))) [2023-04-01 05:57:43,370 INFO L899 garLoopResultBuilder]: For program point L932(lines 932 938) no Hoare annotation was computed. [2023-04-01 05:57:43,370 INFO L895 garLoopResultBuilder]: At program point L930(line 930) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (= 2 ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~methaneLevelCritical~0 0) .cse1) (or .cse2 .cse1 (not (= ~pumpRunning~0 1))) (or .cse0 .cse2 .cse1))) [2023-04-01 05:57:43,370 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 109 115) no Hoare annotation was computed. [2023-04-01 05:57:43,370 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 109 115) the Hoare annotation is: true [2023-04-01 05:57:43,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:57:43,370 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2023-04-01 05:57:43,371 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 05:57:43,371 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 05:57:43,374 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:57:43,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:57:43,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:57:43 BoogieIcfgContainer [2023-04-01 05:57:43,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:57:43,390 INFO L158 Benchmark]: Toolchain (without parser) took 7360.51ms. Allocated memory was 270.5MB in the beginning and 329.3MB in the end (delta: 58.7MB). Free memory was 222.7MB in the beginning and 108.3MB in the end (delta: 114.4MB). Peak memory consumption was 175.7MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,391 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:57:43,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.23ms. Allocated memory is still 270.5MB. Free memory was 222.7MB in the beginning and 204.4MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,391 INFO L158 Benchmark]: Boogie Preprocessor took 92.90ms. Allocated memory is still 270.5MB. Free memory was 204.4MB in the beginning and 200.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,391 INFO L158 Benchmark]: RCFGBuilder took 1021.10ms. Allocated memory is still 270.5MB. Free memory was 200.7MB in the beginning and 140.4MB in the end (delta: 60.3MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,392 INFO L158 Benchmark]: TraceAbstraction took 5817.18ms. Allocated memory was 270.5MB in the beginning and 329.3MB in the end (delta: 58.7MB). Free memory was 139.9MB in the beginning and 108.3MB in the end (delta: 31.6MB). Peak memory consumption was 92.9MB. Max. memory is 8.0GB. [2023-04-01 05:57:43,393 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 179.3MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.23ms. Allocated memory is still 270.5MB. Free memory was 222.7MB in the beginning and 204.4MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 92.90ms. Allocated memory is still 270.5MB. Free memory was 204.4MB in the beginning and 200.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1021.10ms. Allocated memory is still 270.5MB. Free memory was 200.7MB in the beginning and 140.4MB in the end (delta: 60.3MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5817.18ms. Allocated memory was 270.5MB in the beginning and 329.3MB in the end (delta: 58.7MB). Free memory was 139.9MB in the beginning and 108.3MB in the end (delta: 31.6MB). Peak memory consumption was 92.9MB. 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 - PositiveResult [Line: 507]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 182 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 813 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 791 mSDsluCounter, 4070 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3244 mSDsCounter, 335 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1586 IncrementalHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 335 mSolverCounterUnsat, 826 mSDtfsCounter, 1586 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=7, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 65 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 874 PreInvPairs, 935 NumberOfFragments, 997 HoareAnnotationTreeSize, 874 FomulaSimplifications, 458 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 58 FomulaSimplificationsInter, 6025 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 509 NumberOfCodeBlocks, 509 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 501 ConstructedInterpolants, 0 QuantifiedInterpolants, 816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 4/4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(\old(systemActive) == 1) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || ((splverifierCounter == 0 && 1 == systemActive) && pumpRunning == 1)) || !(\old(waterLevel) == 1)) || !(\old(systemActive) == 1)) || (((pumpRunning == 0 && splverifierCounter == 0) && 1 == systemActive) && !(methaneLevelCritical == 0))) || (((pumpRunning == 0 && splverifierCounter == 0) && !(2 == waterLevel)) && 1 == systemActive) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-01 05:57:43,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...