./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 315d60eb588d6482efeebc0b747aa91d22e611dd88f8ad5f52fb821083a93df1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:01:22,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:01:22,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:01:22,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:01:22,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:01:22,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:01:22,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:01:22,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:01:22,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:01:22,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:01:22,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:01:22,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:01:22,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:01:22,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:01:22,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:01:22,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:01:22,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:01:22,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:01:22,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:01:22,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:01:22,346 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:01:22,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:01:22,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:01:22,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:01:22,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:01:22,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:01:22,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:01:22,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:01:22,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:01:22,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:01:22,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:01:22,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:01:22,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:01:22,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:01:22,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:01:22,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:01:22,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:01:22,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:01:22,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:01:22,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:01:22,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:01:22,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:01:22,372 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:01:22,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:01:22,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:01:22,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:01:22,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:01:22,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:01:22,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:01:22,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:01:22,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:01:22,401 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:01:22,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:01:22,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:01:22,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:01:22,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:01:22,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:01:22,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:01:22,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:01:22,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:01:22,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:01:22,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:01:22,403 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:01:22,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:01:22,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:01:22,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:01:22,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:01:22,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:22,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:01:22,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:01:22,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:01:22,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:01:22,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:01:22,405 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:01:22,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:01:22,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:01:22,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 315d60eb588d6482efeebc0b747aa91d22e611dd88f8ad5f52fb821083a93df1 [2022-07-21 05:01:22,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:01:22,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:01:22,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:01:22,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:01:22,649 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:01:22,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c [2022-07-21 05:01:22,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29dade11b/e6b5bd919528468ebd74b35fa5097fc1/FLAG655e00400 [2022-07-21 05:01:23,094 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:01:23,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product08.cil.c [2022-07-21 05:01:23,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29dade11b/e6b5bd919528468ebd74b35fa5097fc1/FLAG655e00400 [2022-07-21 05:01:23,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29dade11b/e6b5bd919528468ebd74b35fa5097fc1 [2022-07-21 05:01:23,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:01:23,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:01:23,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:23,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:01:23,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:01:23,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4007f932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23, skipping insertion in model container [2022-07-21 05:01:23,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:01:23,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:01:23,673 WARN L230 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_spec4_product08.cil.c[17389,17402] [2022-07-21 05:01:23,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:23,680 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:01:23,718 WARN L230 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_spec4_product08.cil.c[17389,17402] [2022-07-21 05:01:23,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:23,729 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:01:23,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23 WrapperNode [2022-07-21 05:01:23,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:23,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:23,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:01:23,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:01:23,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,761 INFO L137 Inliner]: procedures = 52, calls = 151, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 219 [2022-07-21 05:01:23,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:23,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:01:23,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:01:23,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:01:23,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:01:23,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:01:23,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:01:23,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:01:23,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (1/1) ... [2022-07-21 05:01:23,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:23,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:01:23,818 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) [2022-07-21 05:01:23,825 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 [2022-07-21 05:01:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:01:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:01:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:01:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:01:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:01:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:01:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:01:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:01:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:01:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-21 05:01:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-21 05:01:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:01:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:01:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:01:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:01:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:01:23,909 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:01:23,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:01:24,101 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:01:24,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:01:24,106 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:01:24,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:24 BoogieIcfgContainer [2022-07-21 05:01:24,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:01:24,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:01:24,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:01:24,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:01:24,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:01:23" (1/3) ... [2022-07-21 05:01:24,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1195a32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:24, skipping insertion in model container [2022-07-21 05:01:24,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:23" (2/3) ... [2022-07-21 05:01:24,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1195a32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:24, skipping insertion in model container [2022-07-21 05:01:24,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:24" (3/3) ... [2022-07-21 05:01:24,114 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product08.cil.c [2022-07-21 05:01:24,123 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:01:24,123 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:01:24,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:01:24,206 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=PETRI_NET, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@637e919c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1d5b107d [2022-07-21 05:01:24,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:01:24,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 64 states have internal predecessors, (79), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-21 05:01:24,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 05:01:24,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:24,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:24,225 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1667001244, now seen corresponding path program 1 times [2022-07-21 05:01:24,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:24,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185153141] [2022-07-21 05:01:24,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:24,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:24,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:24,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185153141] [2022-07-21 05:01:24,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185153141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:24,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:24,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:01:24,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322045279] [2022-07-21 05:01:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:24,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:01:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:24,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:01:24,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:24,458 INFO L87 Difference]: Start difference. First operand has 75 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 64 states have internal predecessors, (79), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:24,485 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-07-21 05:01:24,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:01:24,489 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-21 05:01:24,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:24,499 INFO L225 Difference]: With dead ends: 142 [2022-07-21 05:01:24,500 INFO L226 Difference]: Without dead ends: 66 [2022-07-21 05:01:24,504 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 [2022-07-21 05:01:24,507 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:24,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:24,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-07-21 05:01:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-07-21 05:01:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.3) internal successors, (65), 56 states have internal predecessors, (65), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-21 05:01:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2022-07-21 05:01:24,538 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 19 [2022-07-21 05:01:24,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:24,538 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2022-07-21 05:01:24,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,539 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-07-21 05:01:24,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-21 05:01:24,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:24,540 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] [2022-07-21 05:01:24,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:01:24,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:24,542 INFO L85 PathProgramCache]: Analyzing trace with hash 108811362, now seen corresponding path program 1 times [2022-07-21 05:01:24,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:24,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753044224] [2022-07-21 05:01:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:24,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:24,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:24,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:24,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753044224] [2022-07-21 05:01:24,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753044224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:24,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:24,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:24,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576493233] [2022-07-21 05:01:24,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:24,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:24,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:24,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:24,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:24,588 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:24,597 INFO L93 Difference]: Finished difference Result 93 states and 117 transitions. [2022-07-21 05:01:24,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:24,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-21 05:01:24,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:24,599 INFO L225 Difference]: With dead ends: 93 [2022-07-21 05:01:24,599 INFO L226 Difference]: Without dead ends: 57 [2022-07-21 05:01:24,600 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 [2022-07-21 05:01:24,601 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 17 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:24,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:24,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-07-21 05:01:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-07-21 05:01:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 50 states have internal predecessors, (58), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-21 05:01:24,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-07-21 05:01:24,609 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 20 [2022-07-21 05:01:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:24,609 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-07-21 05:01:24,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,609 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-07-21 05:01:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:01:24,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:24,610 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] [2022-07-21 05:01:24,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:01:24,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:24,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:24,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1255678841, now seen corresponding path program 1 times [2022-07-21 05:01:24,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:24,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484469201] [2022-07-21 05:01:24,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:24,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:24,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:24,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484469201] [2022-07-21 05:01:24,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484469201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:24,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:24,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:01:24,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556470674] [2022-07-21 05:01:24,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:24,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:01:24,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:01:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:01:24,672 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:24,734 INFO L93 Difference]: Finished difference Result 145 states and 188 transitions. [2022-07-21 05:01:24,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:01:24,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-21 05:01:24,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:24,736 INFO L225 Difference]: With dead ends: 145 [2022-07-21 05:01:24,736 INFO L226 Difference]: Without dead ends: 95 [2022-07-21 05:01:24,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:01:24,738 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 135 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:24,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 236 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-07-21 05:01:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2022-07-21 05:01:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 71 states have (on average 1.352112676056338) internal successors, (96), 80 states have internal predecessors, (96), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2022-07-21 05:01:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2022-07-21 05:01:24,751 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 25 [2022-07-21 05:01:24,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:24,752 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2022-07-21 05:01:24,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,752 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2022-07-21 05:01:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-21 05:01:24,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:24,753 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] [2022-07-21 05:01:24,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:01:24,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:24,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:24,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1665755050, now seen corresponding path program 1 times [2022-07-21 05:01:24,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:24,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212581654] [2022-07-21 05:01:24,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:24,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:24,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:24,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212581654] [2022-07-21 05:01:24,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212581654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:24,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:24,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:01:24,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540317301] [2022-07-21 05:01:24,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:24,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 05:01:24,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 05:01:24,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 05:01:24,824 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:24,961 INFO L93 Difference]: Finished difference Result 335 states and 468 transitions. [2022-07-21 05:01:24,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 05:01:24,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-21 05:01:24,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:24,963 INFO L225 Difference]: With dead ends: 335 [2022-07-21 05:01:24,964 INFO L226 Difference]: Without dead ends: 250 [2022-07-21 05:01:24,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-07-21 05:01:24,965 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:24,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 491 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:01:24,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-07-21 05:01:24,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 240. [2022-07-21 05:01:24,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 183 states have (on average 1.3333333333333333) internal successors, (244), 206 states have internal predecessors, (244), 31 states have call successors, (31), 25 states have call predecessors, (31), 25 states have return successors, (42), 22 states have call predecessors, (42), 31 states have call successors, (42) [2022-07-21 05:01:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 317 transitions. [2022-07-21 05:01:24,987 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 317 transitions. Word has length 28 [2022-07-21 05:01:24,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:24,988 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 317 transitions. [2022-07-21 05:01:24,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:24,988 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 317 transitions. [2022-07-21 05:01:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 05:01:24,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:24,990 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] [2022-07-21 05:01:24,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:01:24,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:24,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:24,991 INFO L85 PathProgramCache]: Analyzing trace with hash 166370863, now seen corresponding path program 1 times [2022-07-21 05:01:24,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:24,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466079263] [2022-07-21 05:01:24,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:24,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:25,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:25,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466079263] [2022-07-21 05:01:25,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466079263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:25,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:25,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:01:25,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568235347] [2022-07-21 05:01:25,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:25,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:25,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:25,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:25,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:25,058 INFO L87 Difference]: Start difference. First operand 240 states and 317 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:25,070 INFO L93 Difference]: Finished difference Result 424 states and 573 transitions. [2022-07-21 05:01:25,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:25,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-21 05:01:25,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:25,072 INFO L225 Difference]: With dead ends: 424 [2022-07-21 05:01:25,072 INFO L226 Difference]: Without dead ends: 191 [2022-07-21 05:01:25,074 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 [2022-07-21 05:01:25,075 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:25,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-07-21 05:01:25,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 188. [2022-07-21 05:01:25,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 149 states have (on average 1.261744966442953) internal successors, (188), 160 states have internal predecessors, (188), 19 states have call successors, (19), 19 states have call predecessors, (19), 19 states have return successors, (24), 19 states have call predecessors, (24), 19 states have call successors, (24) [2022-07-21 05:01:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 231 transitions. [2022-07-21 05:01:25,094 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 231 transitions. Word has length 30 [2022-07-21 05:01:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:25,095 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 231 transitions. [2022-07-21 05:01:25,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 231 transitions. [2022-07-21 05:01:25,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-21 05:01:25,097 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:25,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:25,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:01:25,097 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1797903565, now seen corresponding path program 1 times [2022-07-21 05:01:25,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:25,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835684948] [2022-07-21 05:01:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 05:01:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:25,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 05:01:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 05:01:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 05:01:25,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:25,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835684948] [2022-07-21 05:01:25,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835684948] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 05:01:25,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993517609] [2022-07-21 05:01:25,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:25,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 05:01:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:01:25,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 05:01:25,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 05:01:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:25,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 05:01:25,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 05:01:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 05:01:25,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 05:01:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:25,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993517609] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 05:01:25,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 05:01:25,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2022-07-21 05:01:25,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642729251] [2022-07-21 05:01:25,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 05:01:25,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 05:01:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 05:01:25,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-07-21 05:01:25,697 INFO L87 Difference]: Start difference. First operand 188 states and 231 transitions. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-21 05:01:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:25,843 INFO L93 Difference]: Finished difference Result 253 states and 310 transitions. [2022-07-21 05:01:25,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:01:25,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 54 [2022-07-21 05:01:25,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:25,845 INFO L225 Difference]: With dead ends: 253 [2022-07-21 05:01:25,845 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 05:01:25,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2022-07-21 05:01:25,846 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 145 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:25,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 301 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:01:25,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 05:01:25,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 05:01:25,848 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) [2022-07-21 05:01:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 05:01:25,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2022-07-21 05:01:25,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:25,848 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 05:01:25,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-21 05:01:25,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 05:01:25,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 05:01:25,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:01:25,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 05:01:26,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-21 05:01:26,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 05:01:26,798 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 739 746) the Hoare annotation is: true [2022-07-21 05:01:26,799 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 739 746) no Hoare annotation was computed. [2022-07-21 05:01:26,799 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 739 746) no Hoare annotation was computed. [2022-07-21 05:01:26,799 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 698 704) no Hoare annotation was computed. [2022-07-21 05:01:26,799 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 698 704) the Hoare annotation is: true [2022-07-21 05:01:26,799 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2022-07-21 05:01:26,799 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-07-21 05:01:26,799 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2022-07-21 05:01:26,800 INFO L895 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:01:26,800 INFO L895 garLoopResultBuilder]: At program point L725-1(lines 706 730) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:01:26,800 INFO L895 garLoopResultBuilder]: At program point L754(lines 747 757) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:26,807 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 674 697) no Hoare annotation was computed. [2022-07-21 05:01:26,807 INFO L895 garLoopResultBuilder]: At program point L131(lines 126 134) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or .cse0 (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 (= ~waterLevel~0 1))))) [2022-07-21 05:01:26,807 INFO L895 garLoopResultBuilder]: At program point L763(lines 758 766) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:26,807 INFO L899 garLoopResultBuilder]: For program point L685-1(lines 685 691) no Hoare annotation was computed. [2022-07-21 05:01:26,807 INFO L899 garLoopResultBuilder]: For program point L714(lines 714 722) no Hoare annotation was computed. [2022-07-21 05:01:26,807 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 727) no Hoare annotation was computed. [2022-07-21 05:01:26,808 INFO L899 garLoopResultBuilder]: For program point L900(line 900) no Hoare annotation was computed. [2022-07-21 05:01:26,808 INFO L895 garLoopResultBuilder]: At program point L99(lines 94 102) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:26,808 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2022-07-21 05:01:26,808 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:26,808 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 659) no Hoare annotation was computed. [2022-07-21 05:01:26,808 INFO L899 garLoopResultBuilder]: For program point L649(lines 649 662) no Hoare annotation was computed. [2022-07-21 05:01:26,808 INFO L895 garLoopResultBuilder]: At program point L649-1(lines 641 665) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= |timeShift___utac_acc__Specification4_spec__1_~tmp~4#1| 0))) (.cse3 (not (= |timeShift_getWaterLevel_#res#1| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 .cse3 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:01:26,808 INFO L899 garLoopResultBuilder]: For program point L678-1(lines 677 696) no Hoare annotation was computed. [2022-07-21 05:01:26,808 INFO L895 garLoopResultBuilder]: At program point L901(lines 896 903) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:26,809 INFO L895 garLoopResultBuilder]: At program point L720(line 720) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:26,809 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 674 697) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-21 05:01:26,809 INFO L895 garLoopResultBuilder]: At program point L716(line 716) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) [2022-07-21 05:01:26,809 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 674 697) no Hoare annotation was computed. [2022-07-21 05:01:26,809 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 900) no Hoare annotation was computed. [2022-07-21 05:01:26,809 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 176 205) no Hoare annotation was computed. [2022-07-21 05:01:26,809 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 194) no Hoare annotation was computed. [2022-07-21 05:01:26,809 INFO L902 garLoopResultBuilder]: At program point L190-1(lines 190 194) the Hoare annotation is: true [2022-07-21 05:01:26,809 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 176 205) the Hoare annotation is: true [2022-07-21 05:01:26,809 INFO L899 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2022-07-21 05:01:26,810 INFO L902 garLoopResultBuilder]: At program point L186-2(lines 186 200) the Hoare annotation is: true [2022-07-21 05:01:26,810 INFO L902 garLoopResultBuilder]: At program point L182(line 182) the Hoare annotation is: true [2022-07-21 05:01:26,810 INFO L899 garLoopResultBuilder]: For program point L182-1(line 182) no Hoare annotation was computed. [2022-07-21 05:01:26,810 INFO L902 garLoopResultBuilder]: At program point L201(lines 176 205) the Hoare annotation is: true [2022-07-21 05:01:26,810 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-21 05:01:26,810 INFO L902 garLoopResultBuilder]: At program point L890(lines 827 894) the Hoare annotation is: true [2022-07-21 05:01:26,810 INFO L899 garLoopResultBuilder]: For program point L857(lines 857 863) no Hoare annotation was computed. [2022-07-21 05:01:26,810 INFO L899 garLoopResultBuilder]: For program point L857-1(lines 857 863) no Hoare annotation was computed. [2022-07-21 05:01:26,810 INFO L902 garLoopResultBuilder]: At program point L246(lines 239 248) the Hoare annotation is: true [2022-07-21 05:01:26,810 INFO L895 garLoopResultBuilder]: At program point L849(line 849) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)))) [2022-07-21 05:01:26,811 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 266) no Hoare annotation was computed. [2022-07-21 05:01:26,811 INFO L899 garLoopResultBuilder]: For program point L259-2(lines 259 266) no Hoare annotation was computed. [2022-07-21 05:01:26,811 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 05:01:26,811 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 05:01:26,818 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 05:01:26,818 INFO L895 garLoopResultBuilder]: At program point L887(lines 836 888) the Hoare annotation is: false [2022-07-21 05:01:26,818 INFO L902 garLoopResultBuilder]: At program point L268(lines 249 271) the Hoare annotation is: true [2022-07-21 05:01:26,819 INFO L895 garLoopResultBuilder]: At program point L235(lines 231 237) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-21 05:01:26,819 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 881) no Hoare annotation was computed. [2022-07-21 05:01:26,819 INFO L895 garLoopResultBuilder]: At program point L169(lines 164 172) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-21 05:01:26,819 INFO L895 garLoopResultBuilder]: At program point L809(line 809) the Hoare annotation is: false [2022-07-21 05:01:26,819 INFO L895 garLoopResultBuilder]: At program point L875-2(lines 867 882) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)))) [2022-07-21 05:01:26,819 INFO L899 garLoopResultBuilder]: For program point L838(lines 837 886) no Hoare annotation was computed. [2022-07-21 05:01:26,819 INFO L899 garLoopResultBuilder]: For program point L867(lines 867 882) no Hoare annotation was computed. [2022-07-21 05:01:26,819 INFO L895 garLoopResultBuilder]: At program point L161(lines 157 163) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-21 05:01:26,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 05:01:26,820 INFO L895 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)))) [2022-07-21 05:01:26,820 INFO L895 garLoopResultBuilder]: At program point L884(lines 837 886) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)))) [2022-07-21 05:01:26,820 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 853) no Hoare annotation was computed. [2022-07-21 05:01:26,820 INFO L899 garLoopResultBuilder]: For program point L847-1(lines 847 853) no Hoare annotation was computed. [2022-07-21 05:01:26,820 INFO L899 garLoopResultBuilder]: For program point L839(lines 839 843) no Hoare annotation was computed. [2022-07-21 05:01:26,820 INFO L895 garLoopResultBuilder]: At program point L154(lines 150 156) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-21 05:01:26,820 INFO L895 garLoopResultBuilder]: At program point L823(lines 818 825) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-21 05:01:26,820 INFO L895 garLoopResultBuilder]: At program point L815(lines 803 817) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)))) [2022-07-21 05:01:26,820 INFO L899 garLoopResultBuilder]: For program point L807(lines 807 813) no Hoare annotation was computed. [2022-07-21 05:01:26,820 INFO L899 garLoopResultBuilder]: For program point L807-1(lines 807 813) no Hoare annotation was computed. [2022-07-21 05:01:26,821 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-07-21 05:01:26,821 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2022-07-21 05:01:26,821 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-07-21 05:01:26,824 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-21 05:01:26,825 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:01:26,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:01:26 BoogieIcfgContainer [2022-07-21 05:01:26,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:01:26,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:01:26,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:01:26,878 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:01:26,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:24" (3/4) ... [2022-07-21 05:01:26,881 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 05:01:26,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-21 05:01:26,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-21 05:01:26,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-21 05:01:26,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-21 05:01:26,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-21 05:01:26,889 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-21 05:01:26,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2022-07-21 05:01:26,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-21 05:01:26,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 05:01:26,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 05:01:26,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 05:01:26,908 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:01:26,908 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:01:26,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-21 05:01:26,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-21 05:01:26,943 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) [2022-07-21 05:01:26,946 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:26,947 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) [2022-07-21 05:01:26,948 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) && !(0 == systemActive)) [2022-07-21 05:01:26,948 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && !(\result == 0)) && waterLevel == 1)) [2022-07-21 05:01:26,949 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:26,949 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) [2022-07-21 05:01:26,949 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-07-21 05:01:26,949 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:26,949 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:26,949 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) [2022-07-21 05:01:26,985 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:01:26,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:01:26,986 INFO L158 Benchmark]: Toolchain (without parser) took 3544.40ms. Allocated memory was 54.5MB in the beginning and 83.9MB in the end (delta: 29.4MB). Free memory was 36.8MB in the beginning and 55.2MB in the end (delta: -18.4MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:26,986 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 44.0MB. Free memory was 26.4MB in the beginning and 26.4MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:01:26,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.46ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 31.4MB in the end (delta: 5.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-21 05:01:26,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.79ms. Allocated memory is still 54.5MB. Free memory was 31.2MB in the beginning and 29.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:26,987 INFO L158 Benchmark]: Boogie Preprocessor took 16.97ms. Allocated memory is still 54.5MB. Free memory was 29.0MB in the beginning and 27.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:26,988 INFO L158 Benchmark]: RCFGBuilder took 328.91ms. Allocated memory is still 54.5MB. Free memory was 27.4MB in the beginning and 25.9MB in the end (delta: 1.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-21 05:01:26,988 INFO L158 Benchmark]: TraceAbstraction took 2768.45ms. Allocated memory was 54.5MB in the beginning and 83.9MB in the end (delta: 29.4MB). Free memory was 25.4MB in the beginning and 60.9MB in the end (delta: -35.5MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-07-21 05:01:26,988 INFO L158 Benchmark]: Witness Printer took 107.56ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 55.2MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 05:01:26,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 44.0MB. Free memory was 26.4MB in the beginning and 26.4MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.46ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 31.4MB in the end (delta: 5.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.79ms. Allocated memory is still 54.5MB. Free memory was 31.2MB in the beginning and 29.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.97ms. Allocated memory is still 54.5MB. Free memory was 29.0MB in the beginning and 27.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.91ms. Allocated memory is still 54.5MB. Free memory was 27.4MB in the beginning and 25.9MB in the end (delta: 1.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2768.45ms. Allocated memory was 54.5MB in the beginning and 83.9MB in the end (delta: 29.4MB). Free memory was 25.4MB in the beginning and 60.9MB in the end (delta: -35.5MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Witness Printer took 107.56ms. Allocated memory is still 83.9MB. Free memory was 60.7MB in the beginning and 55.2MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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: 900]: 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 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 486 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 482 mSDsluCounter, 1291 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 848 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 443 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=4, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 356 PreInvPairs, 400 NumberOfFragments, 565 HoareAnnotationTreeSize, 356 FomulaSimplifications, 195 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 1364 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 51/57 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: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) && !(0 == systemActive)) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && !(\result == 0)) && waterLevel == 1)) - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 803]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 896]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && waterLevel == 1) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel)) - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(tmp == 0)) && !(\result == 0)) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 239]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-07-21 05:01:27,033 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE