./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_product56.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 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:39:15,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:39:15,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:39:15,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:39:15,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:39:15,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:39:15,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:39:15,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:39:15,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:39:15,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:39:15,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:39:15,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:39:15,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:39:15,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:39:15,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:39:15,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:39:15,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:39:15,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:39:15,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:39:15,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:39:15,409 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:39:15,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:39:15,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:39:15,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:39:15,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:39:15,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:39:15,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:39:15,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:39:15,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:39:15,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:39:15,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:39:15,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:39:15,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:39:15,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:39:15,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:39:15,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:39:15,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:39:15,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:39:15,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:39:15,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:39:15,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:39:15,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:39:15,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:39:15,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:39:15,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:39:15,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:39:15,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:39:15,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:39:15,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:39:15,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:39:15,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:39:15,456 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:39:15,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:39:15,457 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:39:15,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:39:15,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:39:15,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:39:15,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:39:15,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:39:15,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:39:15,458 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:39:15,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:39:15,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:39:15,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:39:15,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:39:15,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:39:15,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:39:15,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:39:15,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:39:15,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:39:15,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:39:15,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:39:15,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:39:15,461 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:39:15,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:39:15,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:39:15,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 [2022-07-22 17:39:15,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:39:15,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:39:15,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:39:15,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:39:15,732 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:39:15,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2022-07-22 17:39:15,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f09cc844/100ccf83a89f4ec88180d6e0f159abc6/FLAG27c1ba46a [2022-07-22 17:39:16,220 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:39:16,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2022-07-22 17:39:16,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f09cc844/100ccf83a89f4ec88180d6e0f159abc6/FLAG27c1ba46a [2022-07-22 17:39:16,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f09cc844/100ccf83a89f4ec88180d6e0f159abc6 [2022-07-22 17:39:16,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:39:16,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:39:16,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:39:16,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:39:16,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:39:16,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:16,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725d8c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16, skipping insertion in model container [2022-07-22 17:39:16,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:16,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:39:16,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:39:16,847 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_product56.cil.c[17338,17351] [2022-07-22 17:39:16,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:39:16,868 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:39:16,943 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_product56.cil.c[17338,17351] [2022-07-22 17:39:16,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:39:16,965 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:39:16,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16 WrapperNode [2022-07-22 17:39:16,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:39:16,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:39:16,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:39:16,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:39:16,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:16,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,038 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 289 [2022-07-22 17:39:17,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:39:17,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:39:17,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:39:17,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:39:17,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:39:17,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:39:17,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:39:17,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:39:17,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (1/1) ... [2022-07-22 17:39:17,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:39:17,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:17,125 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) [2022-07-22 17:39:17,127 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 [2022-07-22 17:39:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:39:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-22 17:39:17,155 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-22 17:39:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-22 17:39:17,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-22 17:39:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-22 17:39:17,156 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-22 17:39:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:39:17,156 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:39:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-22 17:39:17,157 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-22 17:39:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-22 17:39:17,157 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-22 17:39:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-22 17:39:17,157 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-22 17:39:17,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:39:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-22 17:39:17,158 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-22 17:39:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:39:17,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:39:17,213 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:39:17,214 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:39:17,647 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:39:17,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:39:17,653 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 17:39:17,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:39:17 BoogieIcfgContainer [2022-07-22 17:39:17,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:39:17,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:39:17,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:39:17,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:39:17,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:39:16" (1/3) ... [2022-07-22 17:39:17,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d250100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:39:17, skipping insertion in model container [2022-07-22 17:39:17,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:16" (2/3) ... [2022-07-22 17:39:17,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d250100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:39:17, skipping insertion in model container [2022-07-22 17:39:17,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:39:17" (3/3) ... [2022-07-22 17:39:17,662 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2022-07-22 17:39:17,674 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:39:17,674 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:39:17,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:39:17,720 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@5898fb57, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2aec8c0b [2022-07-22 17:39:17,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:39:17,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 86 states have internal predecessors, (104), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-22 17:39:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 17:39:17,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:17,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:17,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:17,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:17,738 INFO L85 PathProgramCache]: Analyzing trace with hash 975776348, now seen corresponding path program 1 times [2022-07-22 17:39:17,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:17,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568223584] [2022-07-22 17:39:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:17,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:17,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:17,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568223584] [2022-07-22 17:39:17,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568223584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:17,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:17,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:39:17,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557804377] [2022-07-22 17:39:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:17,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:39:17,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:18,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:39:18,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:39:18,027 INFO L87 Difference]: Start difference. First operand has 100 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 86 states have internal predecessors, (104), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) 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) [2022-07-22 17:39:18,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:18,079 INFO L93 Difference]: Finished difference Result 192 states and 263 transitions. [2022-07-22 17:39:18,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:39:18,081 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 [2022-07-22 17:39:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:18,090 INFO L225 Difference]: With dead ends: 192 [2022-07-22 17:39:18,090 INFO L226 Difference]: Without dead ends: 91 [2022-07-22 17:39:18,095 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 [2022-07-22 17:39:18,098 INFO L413 NwaCegarLoop]: 128 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, 128 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 [2022-07-22 17:39:18,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:18,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-22 17:39:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-07-22 17:39:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 78 states have internal predecessors, (90), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-22 17:39:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2022-07-22 17:39:18,153 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 19 [2022-07-22 17:39:18,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:18,154 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2022-07-22 17:39:18,155 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) [2022-07-22 17:39:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2022-07-22 17:39:18,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-22 17:39:18,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:18,158 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] [2022-07-22 17:39:18,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:39:18,158 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:18,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:18,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1543378342, now seen corresponding path program 1 times [2022-07-22 17:39:18,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:18,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140616326] [2022-07-22 17:39:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:18,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:18,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:18,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140616326] [2022-07-22 17:39:18,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140616326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:18,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:18,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:39:18,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983508295] [2022-07-22 17:39:18,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:18,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:39:18,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:18,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:39:18,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:39:18,233 INFO L87 Difference]: Start difference. First operand 91 states and 119 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) [2022-07-22 17:39:18,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:18,246 INFO L93 Difference]: Finished difference Result 143 states and 187 transitions. [2022-07-22 17:39:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:39:18,246 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 [2022-07-22 17:39:18,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:18,247 INFO L225 Difference]: With dead ends: 143 [2022-07-22 17:39:18,248 INFO L226 Difference]: Without dead ends: 82 [2022-07-22 17:39:18,248 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 [2022-07-22 17:39:18,250 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 190 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 [2022-07-22 17:39:18,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:18,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-07-22 17:39:18,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-07-22 17:39:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 72 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-22 17:39:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2022-07-22 17:39:18,258 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 20 [2022-07-22 17:39:18,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:18,259 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2022-07-22 17:39:18,259 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) [2022-07-22 17:39:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2022-07-22 17:39:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 17:39:18,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:18,260 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] [2022-07-22 17:39:18,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:39:18,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:18,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1300509367, now seen corresponding path program 1 times [2022-07-22 17:39:18,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:18,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065815256] [2022-07-22 17:39:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:18,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:18,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:18,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065815256] [2022-07-22 17:39:18,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065815256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:18,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:18,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:39:18,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405194127] [2022-07-22 17:39:18,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:18,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:39:18,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:18,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:39:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:39:18,364 INFO L87 Difference]: Start difference. First operand 82 states and 107 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) [2022-07-22 17:39:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:18,483 INFO L93 Difference]: Finished difference Result 195 states and 258 transitions. [2022-07-22 17:39:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 17:39:18,484 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 [2022-07-22 17:39:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:18,486 INFO L225 Difference]: With dead ends: 195 [2022-07-22 17:39:18,486 INFO L226 Difference]: Without dead ends: 120 [2022-07-22 17:39:18,486 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 [2022-07-22 17:39:18,488 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 170 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:18,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 341 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 17:39:18,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-22 17:39:18,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2022-07-22 17:39:18,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 102 states have internal predecessors, (121), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (17), 10 states have call predecessors, (17), 16 states have call successors, (17) [2022-07-22 17:39:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 154 transitions. [2022-07-22 17:39:18,502 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 154 transitions. Word has length 25 [2022-07-22 17:39:18,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:18,502 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 154 transitions. [2022-07-22 17:39:18,502 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) [2022-07-22 17:39:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 154 transitions. [2022-07-22 17:39:18,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-22 17:39:18,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:18,504 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] [2022-07-22 17:39:18,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:39:18,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:18,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1710585576, now seen corresponding path program 1 times [2022-07-22 17:39:18,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:18,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893629566] [2022-07-22 17:39:18,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:18,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:18,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:18,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893629566] [2022-07-22 17:39:18,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893629566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:18,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:18,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:39:18,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515369782] [2022-07-22 17:39:18,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:18,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:39:18,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:18,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:39:18,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:39:18,587 INFO L87 Difference]: Start difference. First operand 117 states and 154 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 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) [2022-07-22 17:39:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:18,662 INFO L93 Difference]: Finished difference Result 325 states and 449 transitions. [2022-07-22 17:39:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:39:18,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 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 [2022-07-22 17:39:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:18,672 INFO L225 Difference]: With dead ends: 325 [2022-07-22 17:39:18,672 INFO L226 Difference]: Without dead ends: 215 [2022-07-22 17:39:18,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:39:18,679 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 78 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:18,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 430 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-07-22 17:39:18,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2022-07-22 17:39:18,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 162 states have (on average 1.3395061728395061) internal successors, (217), 185 states have internal predecessors, (217), 32 states have call successors, (32), 22 states have call predecessors, (32), 20 states have return successors, (37), 18 states have call predecessors, (37), 32 states have call successors, (37) [2022-07-22 17:39:18,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 286 transitions. [2022-07-22 17:39:18,703 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 286 transitions. Word has length 28 [2022-07-22 17:39:18,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:18,703 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 286 transitions. [2022-07-22 17:39:18,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 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) [2022-07-22 17:39:18,704 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 286 transitions. [2022-07-22 17:39:18,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 17:39:18,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:18,706 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] [2022-07-22 17:39:18,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:39:18,706 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:18,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:18,707 INFO L85 PathProgramCache]: Analyzing trace with hash 298834221, now seen corresponding path program 1 times [2022-07-22 17:39:18,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:18,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138822443] [2022-07-22 17:39:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:18,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:18,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:18,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138822443] [2022-07-22 17:39:18,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138822443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:18,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:18,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:39:18,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244951911] [2022-07-22 17:39:18,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:18,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:39:18,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:39:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:39:18,773 INFO L87 Difference]: Start difference. First operand 215 states and 286 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) [2022-07-22 17:39:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:18,815 INFO L93 Difference]: Finished difference Result 473 states and 648 transitions. [2022-07-22 17:39:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:39:18,818 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 [2022-07-22 17:39:18,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:18,821 INFO L225 Difference]: With dead ends: 473 [2022-07-22 17:39:18,821 INFO L226 Difference]: Without dead ends: 265 [2022-07-22 17:39:18,822 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 [2022-07-22 17:39:18,825 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:18,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 180 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:18,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-07-22 17:39:18,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 261. [2022-07-22 17:39:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 201 states have (on average 1.2835820895522387) internal successors, (258), 216 states have internal predecessors, (258), 31 states have call successors, (31), 29 states have call predecessors, (31), 28 states have return successors, (47), 28 states have call predecessors, (47), 31 states have call successors, (47) [2022-07-22 17:39:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 336 transitions. [2022-07-22 17:39:18,873 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 336 transitions. Word has length 30 [2022-07-22 17:39:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:18,873 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 336 transitions. [2022-07-22 17:39:18,873 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) [2022-07-22 17:39:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 336 transitions. [2022-07-22 17:39:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 17:39:18,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:18,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:18,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:39:18,875 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:18,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:18,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1545723250, now seen corresponding path program 1 times [2022-07-22 17:39:18,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:18,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055757894] [2022-07-22 17:39:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:18,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:18,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:18,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:18,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055757894] [2022-07-22 17:39:18,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055757894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:18,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:18,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:39:18,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653278757] [2022-07-22 17:39:18,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:18,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:39:18,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:18,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:39:18,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:39:18,957 INFO L87 Difference]: Start difference. First operand 261 states and 336 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:39:19,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:19,206 INFO L93 Difference]: Finished difference Result 313 states and 403 transitions. [2022-07-22 17:39:19,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 17:39:19,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-22 17:39:19,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:19,209 INFO L225 Difference]: With dead ends: 313 [2022-07-22 17:39:19,209 INFO L226 Difference]: Without dead ends: 311 [2022-07-22 17:39:19,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:39:19,212 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 141 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:19,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 349 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:39:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-07-22 17:39:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 294. [2022-07-22 17:39:19,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 247 states have internal predecessors, (286), 34 states have call successors, (34), 29 states have call predecessors, (34), 33 states have return successors, (57), 30 states have call predecessors, (57), 34 states have call successors, (57) [2022-07-22 17:39:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 377 transitions. [2022-07-22 17:39:19,244 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 377 transitions. Word has length 32 [2022-07-22 17:39:19,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:19,244 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 377 transitions. [2022-07-22 17:39:19,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:39:19,244 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 377 transitions. [2022-07-22 17:39:19,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 17:39:19,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:19,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:19,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:39:19,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:19,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:19,247 INFO L85 PathProgramCache]: Analyzing trace with hash -766960693, now seen corresponding path program 1 times [2022-07-22 17:39:19,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:19,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932409844] [2022-07-22 17:39:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:19,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:39:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:19,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:19,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932409844] [2022-07-22 17:39:19,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932409844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:19,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:19,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:39:19,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654199578] [2022-07-22 17:39:19,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:19,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:39:19,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:19,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:39:19,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:39:19,356 INFO L87 Difference]: Start difference. First operand 294 states and 377 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 17:39:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:19,626 INFO L93 Difference]: Finished difference Result 641 states and 835 transitions. [2022-07-22 17:39:19,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 17:39:19,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-07-22 17:39:19,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:19,629 INFO L225 Difference]: With dead ends: 641 [2022-07-22 17:39:19,629 INFO L226 Difference]: Without dead ends: 354 [2022-07-22 17:39:19,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:39:19,631 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 145 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:19,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 350 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:39:19,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-07-22 17:39:19,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 324. [2022-07-22 17:39:19,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 251 states have (on average 1.250996015936255) internal successors, (314), 272 states have internal predecessors, (314), 34 states have call successors, (34), 29 states have call predecessors, (34), 38 states have return successors, (64), 34 states have call predecessors, (64), 34 states have call successors, (64) [2022-07-22 17:39:19,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 412 transitions. [2022-07-22 17:39:19,662 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 412 transitions. Word has length 48 [2022-07-22 17:39:19,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:19,662 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 412 transitions. [2022-07-22 17:39:19,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 17:39:19,663 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 412 transitions. [2022-07-22 17:39:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-22 17:39:19,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:19,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:19,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 17:39:19,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:19,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:19,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1932063404, now seen corresponding path program 1 times [2022-07-22 17:39:19,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:19,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861074533] [2022-07-22 17:39:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:19,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 17:39:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:19,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:19,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861074533] [2022-07-22 17:39:19,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861074533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:19,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:19,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:39:19,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691039595] [2022-07-22 17:39:19,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:19,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:39:19,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:39:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:39:19,727 INFO L87 Difference]: Start difference. First operand 324 states and 412 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-22 17:39:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:19,904 INFO L93 Difference]: Finished difference Result 669 states and 847 transitions. [2022-07-22 17:39:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 17:39:19,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-07-22 17:39:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:19,907 INFO L225 Difference]: With dead ends: 669 [2022-07-22 17:39:19,907 INFO L226 Difference]: Without dead ends: 352 [2022-07-22 17:39:19,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:39:19,909 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 167 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:19,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 290 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 17:39:19,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-07-22 17:39:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 324. [2022-07-22 17:39:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 251 states have (on average 1.2430278884462151) internal successors, (312), 272 states have internal predecessors, (312), 34 states have call successors, (34), 29 states have call predecessors, (34), 38 states have return successors, (60), 34 states have call predecessors, (60), 34 states have call successors, (60) [2022-07-22 17:39:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 406 transitions. [2022-07-22 17:39:19,928 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 406 transitions. Word has length 51 [2022-07-22 17:39:19,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:19,929 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 406 transitions. [2022-07-22 17:39:19,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-22 17:39:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 406 transitions. [2022-07-22 17:39:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 17:39:19,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:19,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:19,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 17:39:19,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:19,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1788029047, now seen corresponding path program 1 times [2022-07-22 17:39:19,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:19,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089509174] [2022-07-22 17:39:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:19,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:39:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:20,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:20,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089509174] [2022-07-22 17:39:20,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089509174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:20,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:20,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:39:20,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168141901] [2022-07-22 17:39:20,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:20,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:39:20,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:20,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:39:20,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:39:20,033 INFO L87 Difference]: Start difference. First operand 324 states and 406 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 17:39:20,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:20,293 INFO L93 Difference]: Finished difference Result 637 states and 817 transitions. [2022-07-22 17:39:20,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:39:20,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-07-22 17:39:20,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:20,296 INFO L225 Difference]: With dead ends: 637 [2022-07-22 17:39:20,296 INFO L226 Difference]: Without dead ends: 320 [2022-07-22 17:39:20,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:39:20,299 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 203 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:20,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 349 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:39:20,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-07-22 17:39:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 266. [2022-07-22 17:39:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 206 states have (on average 1.2378640776699028) internal successors, (255), 223 states have internal predecessors, (255), 29 states have call successors, (29), 25 states have call predecessors, (29), 30 states have return successors, (46), 27 states have call predecessors, (46), 29 states have call successors, (46) [2022-07-22 17:39:20,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 330 transitions. [2022-07-22 17:39:20,321 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 330 transitions. Word has length 48 [2022-07-22 17:39:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:20,321 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 330 transitions. [2022-07-22 17:39:20,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 17:39:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 330 transitions. [2022-07-22 17:39:20,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 17:39:20,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:20,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:20,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 17:39:20,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:20,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:20,323 INFO L85 PathProgramCache]: Analyzing trace with hash 512793543, now seen corresponding path program 1 times [2022-07-22 17:39:20,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:20,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740969536] [2022-07-22 17:39:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:20,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:39:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:20,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740969536] [2022-07-22 17:39:20,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740969536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:20,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:20,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:39:20,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515500322] [2022-07-22 17:39:20,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:20,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:39:20,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:39:20,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:39:20,412 INFO L87 Difference]: Start difference. First operand 266 states and 330 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 17:39:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:20,778 INFO L93 Difference]: Finished difference Result 591 states and 775 transitions. [2022-07-22 17:39:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 17:39:20,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-07-22 17:39:20,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:20,782 INFO L225 Difference]: With dead ends: 591 [2022-07-22 17:39:20,782 INFO L226 Difference]: Without dead ends: 405 [2022-07-22 17:39:20,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-07-22 17:39:20,784 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 217 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:20,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 478 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:39:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-07-22 17:39:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 394. [2022-07-22 17:39:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 306 states have (on average 1.2189542483660132) internal successors, (373), 328 states have internal predecessors, (373), 43 states have call successors, (43), 38 states have call predecessors, (43), 44 states have return successors, (81), 44 states have call predecessors, (81), 43 states have call successors, (81) [2022-07-22 17:39:20,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 497 transitions. [2022-07-22 17:39:20,809 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 497 transitions. Word has length 48 [2022-07-22 17:39:20,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:20,810 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 497 transitions. [2022-07-22 17:39:20,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-22 17:39:20,810 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 497 transitions. [2022-07-22 17:39:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 17:39:20,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:20,813 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:20,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 17:39:20,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:20,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1953453445, now seen corresponding path program 1 times [2022-07-22 17:39:20,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:20,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484814645] [2022-07-22 17:39:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:39:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:39:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 17:39:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 17:39:20,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:20,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484814645] [2022-07-22 17:39:20,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484814645] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:39:20,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953107113] [2022-07-22 17:39:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:20,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:20,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:20,951 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) [2022-07-22 17:39:20,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 17:39:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:21,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 17:39:21,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:39:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:21,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 17:39:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 17:39:21,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953107113] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 17:39:21,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 17:39:21,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-07-22 17:39:21,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586844170] [2022-07-22 17:39:21,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 17:39:21,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 17:39:21,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:21,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 17:39:21,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:39:21,315 INFO L87 Difference]: Start difference. First operand 394 states and 497 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:39:21,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:21,923 INFO L93 Difference]: Finished difference Result 938 states and 1245 transitions. [2022-07-22 17:39:21,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-22 17:39:21,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2022-07-22 17:39:21,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:21,927 INFO L225 Difference]: With dead ends: 938 [2022-07-22 17:39:21,927 INFO L226 Difference]: Without dead ends: 624 [2022-07-22 17:39:21,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 198 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2022-07-22 17:39:21,929 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 368 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:21,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 564 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 17:39:21,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-07-22 17:39:21,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 540. [2022-07-22 17:39:21,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 415 states have (on average 1.2265060240963856) internal successors, (509), 447 states have internal predecessors, (509), 62 states have call successors, (62), 54 states have call predecessors, (62), 62 states have return successors, (124), 59 states have call predecessors, (124), 62 states have call successors, (124) [2022-07-22 17:39:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 695 transitions. [2022-07-22 17:39:21,961 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 695 transitions. Word has length 91 [2022-07-22 17:39:21,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:21,962 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 695 transitions. [2022-07-22 17:39:21,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-22 17:39:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 695 transitions. [2022-07-22 17:39:21,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-22 17:39:21,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:21,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:22,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 17:39:22,194 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,SelfDestructingSolverStorable10 [2022-07-22 17:39:22,195 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:22,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:22,195 INFO L85 PathProgramCache]: Analyzing trace with hash -91360441, now seen corresponding path program 2 times [2022-07-22 17:39:22,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:22,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130224730] [2022-07-22 17:39:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:22,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:39:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:39:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 17:39:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 17:39:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-22 17:39:22,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:22,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130224730] [2022-07-22 17:39:22,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130224730] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:39:22,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687563153] [2022-07-22 17:39:22,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 17:39:22,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:22,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:22,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 17:39:22,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 17:39:22,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 17:39:22,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 17:39:22,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 17:39:22,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:39:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-22 17:39:22,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:39:22,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687563153] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:22,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:39:22,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2022-07-22 17:39:22,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35857138] [2022-07-22 17:39:22,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:22,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:39:22,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:22,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:39:22,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-22 17:39:22,646 INFO L87 Difference]: Start difference. First operand 540 states and 695 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 17:39:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:22,917 INFO L93 Difference]: Finished difference Result 1431 states and 1922 transitions. [2022-07-22 17:39:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:39:22,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 134 [2022-07-22 17:39:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:22,923 INFO L225 Difference]: With dead ends: 1431 [2022-07-22 17:39:22,923 INFO L226 Difference]: Without dead ends: 970 [2022-07-22 17:39:22,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-07-22 17:39:22,926 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 236 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:22,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 630 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 17:39:22,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-07-22 17:39:22,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 947. [2022-07-22 17:39:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 729 states have (on average 1.2263374485596708) internal successors, (894), 776 states have internal predecessors, (894), 106 states have call successors, (106), 95 states have call predecessors, (106), 111 states have return successors, (202), 108 states have call predecessors, (202), 106 states have call successors, (202) [2022-07-22 17:39:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1202 transitions. [2022-07-22 17:39:22,976 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1202 transitions. Word has length 134 [2022-07-22 17:39:22,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:22,976 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1202 transitions. [2022-07-22 17:39:22,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-22 17:39:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1202 transitions. [2022-07-22 17:39:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-22 17:39:22,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:22,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:23,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 17:39:23,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-22 17:39:23,203 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash -145753339, now seen corresponding path program 1 times [2022-07-22 17:39:23,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:23,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293762770] [2022-07-22 17:39:23,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:23,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:39:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:39:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-22 17:39:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 17:39:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-22 17:39:23,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:23,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293762770] [2022-07-22 17:39:23,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293762770] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:39:23,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309662779] [2022-07-22 17:39:23,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:23,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:23,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:23,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 17:39:23,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 17:39:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:23,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 17:39:23,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:39:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-22 17:39:23,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:39:23,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309662779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:23,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:39:23,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2022-07-22 17:39:23,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314462077] [2022-07-22 17:39:23,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:23,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:39:23,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:23,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:39:23,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:39:23,438 INFO L87 Difference]: Start difference. First operand 947 states and 1202 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 17:39:23,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:23,481 INFO L93 Difference]: Finished difference Result 1310 states and 1649 transitions. [2022-07-22 17:39:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:39:23,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 134 [2022-07-22 17:39:23,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:23,483 INFO L225 Difference]: With dead ends: 1310 [2022-07-22 17:39:23,483 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 17:39:23,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:39:23,486 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:23,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 403 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:23,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 17:39:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 17:39:23,487 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) [2022-07-22 17:39:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 17:39:23,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2022-07-22 17:39:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:23,488 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 17:39:23,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-22 17:39:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 17:39:23,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 17:39:23,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 17:39:23,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 17:39:23,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:23,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 17:39:26,057 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 183 190) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:26,058 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 183 190) no Hoare annotation was computed. [2022-07-22 17:39:26,058 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 183 190) no Hoare annotation was computed. [2022-07-22 17:39:26,058 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 90 96) no Hoare annotation was computed. [2022-07-22 17:39:26,058 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 90 96) the Hoare annotation is: true [2022-07-22 17:39:26,058 INFO L899 garLoopResultBuilder]: For program point L913-1(lines 909 920) no Hoare annotation was computed. [2022-07-22 17:39:26,058 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 909 920) the Hoare annotation is: true [2022-07-22 17:39:26,058 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 909 920) no Hoare annotation was computed. [2022-07-22 17:39:26,058 INFO L902 garLoopResultBuilder]: At program point L801(lines 776 805) the Hoare annotation is: true [2022-07-22 17:39:26,058 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 776 805) no Hoare annotation was computed. [2022-07-22 17:39:26,059 INFO L899 garLoopResultBuilder]: For program point L797(line 797) no Hoare annotation was computed. [2022-07-22 17:39:26,059 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 776 805) the Hoare annotation is: true [2022-07-22 17:39:26,059 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 794) no Hoare annotation was computed. [2022-07-22 17:39:26,059 INFO L902 garLoopResultBuilder]: At program point L790-1(lines 790 794) the Hoare annotation is: true [2022-07-22 17:39:26,059 INFO L899 garLoopResultBuilder]: For program point L787(line 787) no Hoare annotation was computed. [2022-07-22 17:39:26,059 INFO L902 garLoopResultBuilder]: At program point L786-2(lines 786 800) the Hoare annotation is: true [2022-07-22 17:39:26,059 INFO L902 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: true [2022-07-22 17:39:26,059 INFO L899 garLoopResultBuilder]: For program point L782-1(line 782) no Hoare annotation was computed. [2022-07-22 17:39:26,059 INFO L899 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2022-07-22 17:39:26,059 INFO L899 garLoopResultBuilder]: For program point L77-1(lines 77 83) no Hoare annotation was computed. [2022-07-22 17:39:26,059 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 66 89) no Hoare annotation was computed. [2022-07-22 17:39:26,060 INFO L895 garLoopResultBuilder]: At program point L164(line 164) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:26,060 INFO L895 garLoopResultBuilder]: At program point L160(line 160) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:26,060 INFO L895 garLoopResultBuilder]: At program point L879(lines 874 881) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:26,060 INFO L895 garLoopResultBuilder]: At program point L169(line 169) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or .cse0 .cse2 (not .cse3)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) .cse3 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-22 17:39:26,060 INFO L895 garLoopResultBuilder]: At program point L169-1(lines 150 174) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse3 (<= 2 ~waterLevel~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 .cse2 (and .cse4 (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse4 .cse5) .cse1 (and .cse3 .cse5))))) [2022-07-22 17:39:26,060 INFO L895 garLoopResultBuilder]: At program point L198(lines 191 201) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:26,060 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 69 88) no Hoare annotation was computed. [2022-07-22 17:39:26,061 INFO L895 garLoopResultBuilder]: At program point L958(lines 953 961) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse5 (= 0 ~systemActive~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 .cse3 .cse4) (not .cse5) .cse6) (or (and (<= 2 ~waterLevel~0) .cse7) (and .cse2 (<= 1 ~waterLevel~0) .cse3) .cse5 .cse6) (or .cse0 .cse5 (and .cse4 .cse7) .cse6) (or .cse0 .cse1 (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-07-22 17:39:26,061 INFO L895 garLoopResultBuilder]: At program point L207(lines 202 210) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:26,061 INFO L895 garLoopResultBuilder]: At program point L926(lines 921 929) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:26,061 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 166) no Hoare annotation was computed. [2022-07-22 17:39:26,061 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 171) no Hoare annotation was computed. [2022-07-22 17:39:26,061 INFO L899 garLoopResultBuilder]: For program point L889(lines 889 893) no Hoare annotation was computed. [2022-07-22 17:39:26,061 INFO L899 garLoopResultBuilder]: For program point L761(lines 761 767) no Hoare annotation was computed. [2022-07-22 17:39:26,061 INFO L895 garLoopResultBuilder]: At program point L889-2(lines 885 896) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:26,061 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 770) no Hoare annotation was computed. [2022-07-22 17:39:26,062 INFO L895 garLoopResultBuilder]: At program point L757-1(lines 749 773) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse9 (<= 2 ~waterLevel~0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse11 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1|))) (let ((.cse1 (and .cse9 .cse12 .cse10 .cse11)) (.cse4 (and .cse6 .cse12)) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1|)) (.cse8 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 .cse4 .cse5 .cse1) (or .cse0 .cse4 .cse5 (not .cse2)) (or (and .cse6 .cse7 (<= 1 ~waterLevel~0) .cse8) (and .cse9 .cse10 .cse11) .cse2 .cse3) (or .cse0 (and .cse7 .cse8) .cse3)))) [2022-07-22 17:39:26,062 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 66 89) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 .cse2) .cse3) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (= 0 ~systemActive~0) .cse3))) [2022-07-22 17:39:26,062 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 66 89) no Hoare annotation was computed. [2022-07-22 17:39:26,062 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2022-07-22 17:39:26,062 INFO L895 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-22 17:39:26,062 INFO L895 garLoopResultBuilder]: At program point L738(lines 687 739) the Hoare annotation is: false [2022-07-22 17:39:26,062 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 17:39:26,062 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 17:39:26,063 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 17:39:26,063 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2022-07-22 17:39:26,063 INFO L895 garLoopResultBuilder]: At program point L726-2(lines 718 733) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-22 17:39:26,063 INFO L899 garLoopResultBuilder]: For program point L689(lines 688 737) no Hoare annotation was computed. [2022-07-22 17:39:26,063 INFO L895 garLoopResultBuilder]: At program point L305(lines 300 307) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2022-07-22 17:39:26,063 INFO L899 garLoopResultBuilder]: For program point L718(lines 718 733) no Hoare annotation was computed. [2022-07-22 17:39:26,063 INFO L895 garLoopResultBuilder]: At program point L297(lines 285 299) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4))) [2022-07-22 17:39:26,063 INFO L895 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-22 17:39:26,064 INFO L895 garLoopResultBuilder]: At program point L834(lines 830 836) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:26,064 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2022-07-22 17:39:26,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 17:39:26,064 INFO L899 garLoopResultBuilder]: For program point L289-1(lines 289 295) no Hoare annotation was computed. [2022-07-22 17:39:26,064 INFO L895 garLoopResultBuilder]: At program point L735(lines 688 737) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-22 17:39:26,064 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 704) no Hoare annotation was computed. [2022-07-22 17:39:26,064 INFO L899 garLoopResultBuilder]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2022-07-22 17:39:26,064 INFO L895 garLoopResultBuilder]: At program point L1016(lines 1011 1019) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:26,064 INFO L899 garLoopResultBuilder]: For program point L690(lines 690 694) no Hoare annotation was computed. [2022-07-22 17:39:26,064 INFO L895 garLoopResultBuilder]: At program point L1008(lines 1004 1010) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:26,065 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 867) no Hoare annotation was computed. [2022-07-22 17:39:26,065 INFO L899 garLoopResultBuilder]: For program point L860-2(lines 860 867) no Hoare annotation was computed. [2022-07-22 17:39:26,065 INFO L902 garLoopResultBuilder]: At program point L844(lines 837 846) the Hoare annotation is: true [2022-07-22 17:39:26,071 INFO L895 garLoopResultBuilder]: At program point L1001(lines 997 1003) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:26,071 INFO L902 garLoopResultBuilder]: At program point L741(lines 678 745) the Hoare annotation is: true [2022-07-22 17:39:26,072 INFO L902 garLoopResultBuilder]: At program point L869(lines 850 872) the Hoare annotation is: true [2022-07-22 17:39:26,072 INFO L899 garLoopResultBuilder]: For program point L708(lines 708 714) no Hoare annotation was computed. [2022-07-22 17:39:26,072 INFO L899 garLoopResultBuilder]: For program point L708-1(lines 708 714) no Hoare annotation was computed. [2022-07-22 17:39:26,073 INFO L895 garLoopResultBuilder]: At program point L291(line 291) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:26,074 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 98 122) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:26,074 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 260) no Hoare annotation was computed. [2022-07-22 17:39:26,074 INFO L899 garLoopResultBuilder]: For program point L256-2(lines 256 260) no Hoare annotation was computed. [2022-07-22 17:39:26,074 INFO L895 garLoopResultBuilder]: At program point L180(lines 175 182) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:26,074 INFO L895 garLoopResultBuilder]: At program point L112(line 112) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1| 0))) .cse1) (or .cse0 (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) .cse1))) [2022-07-22 17:39:26,074 INFO L895 garLoopResultBuilder]: At program point L971(lines 962 975) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (and .cse0 (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0))) [2022-07-22 17:39:26,075 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 114) no Hoare annotation was computed. [2022-07-22 17:39:26,075 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 119) no Hoare annotation was computed. [2022-07-22 17:39:26,075 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 98 122) no Hoare annotation was computed. [2022-07-22 17:39:26,075 INFO L895 garLoopResultBuilder]: At program point L117(line 117) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:26,075 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 98 122) no Hoare annotation was computed. [2022-07-22 17:39:26,075 INFO L899 garLoopResultBuilder]: For program point L966(lines 966 972) no Hoare annotation was computed. [2022-07-22 17:39:26,075 INFO L895 garLoopResultBuilder]: At program point L262(lines 247 265) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1| 0))) .cse2))) [2022-07-22 17:39:26,076 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 897 908) no Hoare annotation was computed. [2022-07-22 17:39:26,076 INFO L899 garLoopResultBuilder]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2022-07-22 17:39:26,076 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|)) .cse0) (or .cse0 (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-22 17:39:26,076 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 145) no Hoare annotation was computed. [2022-07-22 17:39:26,076 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 124 148) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:26,077 INFO L895 garLoopResultBuilder]: At program point L281(lines 266 284) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~4#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-22 17:39:26,077 INFO L895 garLoopResultBuilder]: At program point L981(lines 976 984) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-22 17:39:26,077 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 279) no Hoare annotation was computed. [2022-07-22 17:39:26,077 INFO L899 garLoopResultBuilder]: For program point L275-2(lines 275 279) no Hoare annotation was computed. [2022-07-22 17:39:26,077 INFO L895 garLoopResultBuilder]: At program point L143(line 143) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:26,077 INFO L899 garLoopResultBuilder]: For program point L143-1(lines 124 148) no Hoare annotation was computed. [2022-07-22 17:39:26,077 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 124 148) no Hoare annotation was computed. [2022-07-22 17:39:26,078 INFO L895 garLoopResultBuilder]: At program point L138(line 138) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:26,078 INFO L895 garLoopResultBuilder]: At program point L134(line 134) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~4#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__lowWaterSensor_~tmp~1#1|)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-22 17:39:26,078 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 140) no Hoare annotation was computed. [2022-07-22 17:39:26,081 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:26,082 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 17:39:26,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 05:39:26 BoogieIcfgContainer [2022-07-22 17:39:26,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 17:39:26,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 17:39:26,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 17:39:26,124 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 17:39:26,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:39:17" (3/4) ... [2022-07-22 17:39:26,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 17:39:26,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-22 17:39:26,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-22 17:39:26,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-22 17:39:26,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-22 17:39:26,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-22 17:39:26,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:39:26,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-22 17:39:26,135 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-07-22 17:39:26,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2022-07-22 17:39:26,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-22 17:39:26,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 17:39:26,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 17:39:26,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 17:39:26,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 17:39:26,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 17:39:26,167 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-22 17:39:26,167 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) [2022-07-22 17:39:26,167 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) || ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive))) || ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == 1) && tmp == 1) [2022-07-22 17:39:26,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-22 17:39:26,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2022-07-22 17:39:26,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) [2022-07-22 17:39:26,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-07-22 17:39:26,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-22 17:39:26,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1) && tmp == 1) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && 0 == systemActive) && tmp == 1) [2022-07-22 17:39:26,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || ((2 <= waterLevel && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (1 <= tmp && 1 <= \result)) || !(2 <= \old(waterLevel))) [2022-07-22 17:39:26,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-22 17:39:26,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2022-07-22 17:39:26,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2022-07-22 17:39:26,171 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive [2022-07-22 17:39:26,171 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2022-07-22 17:39:26,171 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2022-07-22 17:39:26,171 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && !(\result == 0)) && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || 0 == systemActive) [2022-07-22 17:39:26,172 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive [2022-07-22 17:39:26,199 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 17:39:26,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 17:39:26,201 INFO L158 Benchmark]: Toolchain (without parser) took 9614.68ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 83.0MB in the beginning and 112.6MB in the end (delta: -29.6MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-07-22 17:39:26,201 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 75.5MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:39:26,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.77ms. Allocated memory is still 113.2MB. Free memory was 82.8MB in the beginning and 63.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 17:39:26,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.15ms. Allocated memory is still 113.2MB. Free memory was 63.6MB in the beginning and 61.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:39:26,202 INFO L158 Benchmark]: Boogie Preprocessor took 51.79ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:39:26,203 INFO L158 Benchmark]: RCFGBuilder took 559.30ms. Allocated memory is still 113.2MB. Free memory was 59.3MB in the beginning and 85.7MB in the end (delta: -26.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 17:39:26,203 INFO L158 Benchmark]: TraceAbstraction took 8466.32ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 85.0MB in the beginning and 118.9MB in the end (delta: -33.8MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. [2022-07-22 17:39:26,203 INFO L158 Benchmark]: Witness Printer took 77.11ms. Allocated memory is still 163.6MB. Free memory was 118.9MB in the beginning and 112.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 17:39:26,205 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 75.5MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.77ms. Allocated memory is still 113.2MB. Free memory was 82.8MB in the beginning and 63.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.15ms. Allocated memory is still 113.2MB. Free memory was 63.6MB in the beginning and 61.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.79ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 559.30ms. Allocated memory is still 113.2MB. Free memory was 59.3MB in the beginning and 85.7MB in the end (delta: -26.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8466.32ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 85.0MB in the beginning and 118.9MB in the end (delta: -33.8MB). Peak memory consumption was 99.4MB. Max. memory is 16.1GB. * Witness Printer took 77.11ms. Allocated memory is still 163.6MB. Free memory was 118.9MB in the beginning and 112.6MB in the end (delta: 6.3MB). 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: 878]: 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 9 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1831 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1810 mSDsluCounter, 4682 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3098 mSDsCounter, 527 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2213 IncrementalHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 527 mSolverCounterUnsat, 1584 mSDtfsCounter, 2213 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 692 GetRequests, 562 SyntacticMatches, 10 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=947occurred in iteration=12, InterpolantAutomatonStates: 116, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 254 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 1824 PreInvPairs, 1961 NumberOfFragments, 1228 HoareAnnotationTreeSize, 1824 FomulaSimplifications, 2237 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 48 FomulaSimplificationsInter, 8974 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1067 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1141 ConstructedInterpolants, 0 QuantifiedInterpolants, 1996 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1603 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 17 InterpolantComputations, 12 PerfectInterpolantSequences, 393/447 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: 976]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 962]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive - InvariantResult [Line: 953]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 1011]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 830]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || ((2 <= waterLevel && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (1 <= tmp && 1 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && !(\result == 0)) && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || 0 == systemActive) - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) || ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive))) || ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == 1) && tmp == 1) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive - InvariantResult [Line: 1004]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 997]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1) && tmp == 1) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && 0 == systemActive) && tmp == 1) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 786]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-07-22 17:39:26,257 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