./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF --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 aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:36:28,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:36:28,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:36:28,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:36:28,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:36:28,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:36:28,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:36:28,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:36:28,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:36:28,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:36:28,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:36:28,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:36:28,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:36:28,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:36:28,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:36:28,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:36:28,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:36:28,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:36:28,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:36:28,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:36:28,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:36:28,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:36:28,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:36:28,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:36:28,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:36:28,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:36:28,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:36:28,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:36:28,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:36:28,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:36:28,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:36:28,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:36:28,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:36:28,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:36:28,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:36:28,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:36:28,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:36:28,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:36:28,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:36:28,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:36:28,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:36:28,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:36:28,499 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:36:28,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:36:28,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:36:28,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:36:28,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:36:28,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:36:28,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:36:28,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:36:28,501 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:36:28,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:36:28,502 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:36:28,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:36:28,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:36:28,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:36:28,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:36:28,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:36:28,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:36:28,503 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:36:28,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:36:28,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:36:28,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:36:28,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:36:28,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:36:28,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:36:28,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:36:28,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:36:28,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:36:28,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:36:28,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:36:28,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:36:28,506 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:36:28,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:36:28,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:36:28,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:36:28,507 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 [2021-11-20 06:36:28,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:36:28,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:36:28,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:36:28,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:36:28,818 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:36:28,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2021-11-20 06:36:28,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/data/641d5a112/79b811fd6d83499db288ebe7024bb932/FLAGcfca9e997 [2021-11-20 06:36:29,418 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:36:29,418 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2021-11-20 06:36:29,435 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/data/641d5a112/79b811fd6d83499db288ebe7024bb932/FLAGcfca9e997 [2021-11-20 06:36:29,714 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/data/641d5a112/79b811fd6d83499db288ebe7024bb932 [2021-11-20 06:36:29,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:36:29,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:36:29,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:36:29,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:36:29,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:36:29,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:36:29" (1/1) ... [2021-11-20 06:36:29,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d93706b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:29, skipping insertion in model container [2021-11-20 06:36:29,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:36:29" (1/1) ... [2021-11-20 06:36:29,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:36:29,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:36:30,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2021-11-20 06:36:30,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:36:30,159 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:36:30,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2021-11-20 06:36:30,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:36:30,291 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:36:30,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30 WrapperNode [2021-11-20 06:36:30,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:36:30,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:36:30,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:36:30,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:36:30,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,350 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 247 [2021-11-20 06:36:30,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:36:30,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:36:30,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:36:30,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:36:30,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:36:30,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:36:30,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:36:30,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:36:30,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (1/1) ... [2021-11-20 06:36:30,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:36:30,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:30,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:36:30,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:36:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:36:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-20 06:36:30,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-20 06:36:30,480 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-20 06:36:30,481 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-20 06:36:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-20 06:36:30,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-20 06:36:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-20 06:36:30,481 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-20 06:36:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:36:30,481 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:36:30,481 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-20 06:36:30,482 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-20 06:36:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:36:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-20 06:36:30,482 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-20 06:36:30,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:36:30,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:36:30,552 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:36:30,554 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:36:30,940 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:36:30,958 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:36:30,959 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:36:30,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:36:30 BoogieIcfgContainer [2021-11-20 06:36:30,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:36:30,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:36:30,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:36:30,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:36:30,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:36:29" (1/3) ... [2021-11-20 06:36:30,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dd5dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:36:30, skipping insertion in model container [2021-11-20 06:36:30,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:36:30" (2/3) ... [2021-11-20 06:36:30,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dd5dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:36:30, skipping insertion in model container [2021-11-20 06:36:30,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:36:30" (3/3) ... [2021-11-20 06:36:30,972 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2021-11-20 06:36:30,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:36:30,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:36:31,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:36:31,091 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:36:31,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:36:31,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 66 states have (on average 1.393939393939394) internal successors, (92), 74 states have internal predecessors, (92), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-20 06:36:31,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 06:36:31,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:31,123 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:31,124 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:31,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:31,130 INFO L85 PathProgramCache]: Analyzing trace with hash -985804635, now seen corresponding path program 1 times [2021-11-20 06:36:31,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:31,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812701462] [2021-11-20 06:36:31,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:31,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:31,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-20 06:36:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:31,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:31,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812701462] [2021-11-20 06:36:31,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812701462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:31,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:31,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:36:31,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031799717] [2021-11-20 06:36:31,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:31,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:36:31,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:31,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:36:31,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:36:31,374 INFO L87 Difference]: Start difference. First operand has 87 states, 66 states have (on average 1.393939393939394) internal successors, (92), 74 states have internal predecessors, (92), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:36:31,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:31,410 INFO L93 Difference]: Finished difference Result 165 states and 226 transitions. [2021-11-20 06:36:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:36:31,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-20 06:36:31,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:31,422 INFO L225 Difference]: With dead ends: 165 [2021-11-20 06:36:31,423 INFO L226 Difference]: Without dead ends: 78 [2021-11-20 06:36:31,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:36:31,431 INFO L933 BasicCegarLoop]: 110 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, 110 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 [2021-11-20 06:36:31,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:36:31,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-20 06:36:31,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-20 06:36:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 66 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 06:36:31,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2021-11-20 06:36:31,480 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 25 [2021-11-20 06:36:31,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:31,481 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2021-11-20 06:36:31,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:36:31,481 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2021-11-20 06:36:31,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 06:36:31,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:31,485 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:31,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:36:31,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:31,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:31,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1726186972, now seen corresponding path program 1 times [2021-11-20 06:36:31,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:31,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657359912] [2021-11-20 06:36:31,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:31,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:31,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:36:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:31,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:31,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657359912] [2021-11-20 06:36:31,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657359912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:31,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:31,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:36:31,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189332304] [2021-11-20 06:36:31,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:31,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:36:31,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:31,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:36:31,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:36:31,619 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:36:31,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:31,636 INFO L93 Difference]: Finished difference Result 121 states and 157 transitions. [2021-11-20 06:36:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:36:31,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-11-20 06:36:31,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:31,639 INFO L225 Difference]: With dead ends: 121 [2021-11-20 06:36:31,639 INFO L226 Difference]: Without dead ends: 69 [2021-11-20 06:36:31,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:36:31,642 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 12 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 160 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 [2021-11-20 06:36:31,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 160 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:36:31,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-20 06:36:31,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-20 06:36:31,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 60 states have internal predecessors, (71), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-20 06:36:31,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2021-11-20 06:36:31,654 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 26 [2021-11-20 06:36:31,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:31,655 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2021-11-20 06:36:31,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:36:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2021-11-20 06:36:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 06:36:31,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:31,657 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:31,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:36:31,657 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:31,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1161832603, now seen corresponding path program 1 times [2021-11-20 06:36:31,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:31,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705507701] [2021-11-20 06:36:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:31,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:31,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:31,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705507701] [2021-11-20 06:36:31,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705507701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:31,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:31,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:36:31,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81264492] [2021-11-20 06:36:31,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:31,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:36:31,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:31,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:36:31,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:36:31,811 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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) [2021-11-20 06:36:31,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:31,830 INFO L93 Difference]: Finished difference Result 130 states and 171 transitions. [2021-11-20 06:36:31,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:36:31,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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 30 [2021-11-20 06:36:31,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:31,833 INFO L225 Difference]: With dead ends: 130 [2021-11-20 06:36:31,833 INFO L226 Difference]: Without dead ends: 69 [2021-11-20 06:36:31,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:36:31,836 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 87 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 [2021-11-20 06:36:31,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:36:31,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-20 06:36:31,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-20 06:36:31,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.320754716981132) internal successors, (70), 60 states have internal predecessors, (70), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-20 06:36:31,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2021-11-20 06:36:31,868 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 30 [2021-11-20 06:36:31,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:31,869 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-11-20 06:36:31,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 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) [2021-11-20 06:36:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2021-11-20 06:36:31,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 06:36:31,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:31,874 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:31,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:36:31,875 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:31,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:31,876 INFO L85 PathProgramCache]: Analyzing trace with hash 202365907, now seen corresponding path program 1 times [2021-11-20 06:36:31,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:31,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089989406] [2021-11-20 06:36:31,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:31,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:31,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:36:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-20 06:36:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:32,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:32,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089989406] [2021-11-20 06:36:32,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089989406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:32,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:32,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:36:32,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869244837] [2021-11-20 06:36:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:32,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:36:32,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:36:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:36:32,037 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:36:32,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:32,229 INFO L93 Difference]: Finished difference Result 204 states and 262 transitions. [2021-11-20 06:36:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:36:32,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2021-11-20 06:36:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:32,232 INFO L225 Difference]: With dead ends: 204 [2021-11-20 06:36:32,232 INFO L226 Difference]: Without dead ends: 143 [2021-11-20 06:36:32,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:36:32,235 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 161 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:32,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 298 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:36:32,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-20 06:36:32,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2021-11-20 06:36:32,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 112 states have internal predecessors, (135), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2021-11-20 06:36:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 170 transitions. [2021-11-20 06:36:32,278 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 170 transitions. Word has length 40 [2021-11-20 06:36:32,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:32,278 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 170 transitions. [2021-11-20 06:36:32,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:36:32,279 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 170 transitions. [2021-11-20 06:36:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 06:36:32,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:32,281 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:32,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:36:32,281 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:32,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:32,282 INFO L85 PathProgramCache]: Analyzing trace with hash 886374373, now seen corresponding path program 1 times [2021-11-20 06:36:32,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:32,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772866843] [2021-11-20 06:36:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:32,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:36:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:32,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:32,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772866843] [2021-11-20 06:36:32,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772866843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:32,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:32,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:36:32,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922914176] [2021-11-20 06:36:32,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:32,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:36:32,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:36:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:36:32,407 INFO L87 Difference]: Start difference. First operand 137 states and 170 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:36:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:32,719 INFO L93 Difference]: Finished difference Result 383 states and 498 transitions. [2021-11-20 06:36:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:36:32,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-20 06:36:32,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:32,733 INFO L225 Difference]: With dead ends: 383 [2021-11-20 06:36:32,733 INFO L226 Difference]: Without dead ends: 254 [2021-11-20 06:36:32,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-20 06:36:32,742 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 154 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:32,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 405 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:36:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-20 06:36:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 221. [2021-11-20 06:36:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 170 states have (on average 1.2882352941176471) internal successors, (219), 179 states have internal predecessors, (219), 25 states have call successors, (25), 23 states have call predecessors, (25), 25 states have return successors, (35), 25 states have call predecessors, (35), 25 states have call successors, (35) [2021-11-20 06:36:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 279 transitions. [2021-11-20 06:36:32,782 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 279 transitions. Word has length 44 [2021-11-20 06:36:32,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:32,782 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 279 transitions. [2021-11-20 06:36:32,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:36:32,783 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 279 transitions. [2021-11-20 06:36:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 06:36:32,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:32,785 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:32,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:36:32,786 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash 463672547, now seen corresponding path program 1 times [2021-11-20 06:36:32,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:32,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121586352] [2021-11-20 06:36:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:32,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:36:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:32,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:32,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121586352] [2021-11-20 06:36:32,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121586352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:32,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:32,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:36:32,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170764926] [2021-11-20 06:36:32,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:32,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:36:32,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:32,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:36:32,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:36:32,869 INFO L87 Difference]: Start difference. First operand 221 states and 279 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:36:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:33,027 INFO L93 Difference]: Finished difference Result 448 states and 573 transitions. [2021-11-20 06:36:33,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:36:33,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-20 06:36:33,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:33,032 INFO L225 Difference]: With dead ends: 448 [2021-11-20 06:36:33,032 INFO L226 Difference]: Without dead ends: 235 [2021-11-20 06:36:33,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:36:33,044 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 60 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:33,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 368 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:36:33,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-20 06:36:33,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 227. [2021-11-20 06:36:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 176 states have (on average 1.2784090909090908) internal successors, (225), 185 states have internal predecessors, (225), 25 states have call successors, (25), 23 states have call predecessors, (25), 25 states have return successors, (35), 25 states have call predecessors, (35), 25 states have call successors, (35) [2021-11-20 06:36:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 285 transitions. [2021-11-20 06:36:33,090 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 285 transitions. Word has length 44 [2021-11-20 06:36:33,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:33,090 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 285 transitions. [2021-11-20 06:36:33,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:36:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 285 transitions. [2021-11-20 06:36:33,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 06:36:33,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:33,093 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:33,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:36:33,093 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:33,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:33,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1225271195, now seen corresponding path program 1 times [2021-11-20 06:36:33,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:33,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43626812] [2021-11-20 06:36:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:33,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:36:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:33,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:33,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43626812] [2021-11-20 06:36:33,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43626812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:33,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:33,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:36:33,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307693941] [2021-11-20 06:36:33,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:33,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:36:33,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:33,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:36:33,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:36:33,167 INFO L87 Difference]: Start difference. First operand 227 states and 285 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:36:33,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:33,339 INFO L93 Difference]: Finished difference Result 413 states and 524 transitions. [2021-11-20 06:36:33,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:36:33,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-20 06:36:33,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:33,341 INFO L225 Difference]: With dead ends: 413 [2021-11-20 06:36:33,342 INFO L226 Difference]: Without dead ends: 194 [2021-11-20 06:36:33,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:36:33,344 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 137 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:33,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 235 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:36:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-20 06:36:33,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 189. [2021-11-20 06:36:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 146 states have (on average 1.2534246575342465) internal successors, (183), 154 states have internal predecessors, (183), 21 states have call successors, (21), 19 states have call predecessors, (21), 21 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2021-11-20 06:36:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 230 transitions. [2021-11-20 06:36:33,362 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 230 transitions. Word has length 44 [2021-11-20 06:36:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:33,362 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 230 transitions. [2021-11-20 06:36:33,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:36:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 230 transitions. [2021-11-20 06:36:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 06:36:33,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:33,365 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:33,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:36:33,365 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:33,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:33,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1754769083, now seen corresponding path program 1 times [2021-11-20 06:36:33,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:33,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067024113] [2021-11-20 06:36:33,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:33,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:36:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 06:36:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:33,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:33,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067024113] [2021-11-20 06:36:33,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067024113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:33,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:33,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:36:33,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127756336] [2021-11-20 06:36:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:33,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:36:33,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:33,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:36:33,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:36:33,468 INFO L87 Difference]: Start difference. First operand 189 states and 230 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 06:36:33,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:33,664 INFO L93 Difference]: Finished difference Result 384 states and 468 transitions. [2021-11-20 06:36:33,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:36:33,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2021-11-20 06:36:33,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:33,667 INFO L225 Difference]: With dead ends: 384 [2021-11-20 06:36:33,667 INFO L226 Difference]: Without dead ends: 203 [2021-11-20 06:36:33,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:36:33,669 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 113 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:33,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 341 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:36:33,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-20 06:36:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 186. [2021-11-20 06:36:33,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.2167832167832169) internal successors, (174), 151 states have internal predecessors, (174), 21 states have call successors, (21), 19 states have call predecessors, (21), 21 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2021-11-20 06:36:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 221 transitions. [2021-11-20 06:36:33,688 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 221 transitions. Word has length 46 [2021-11-20 06:36:33,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:33,689 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 221 transitions. [2021-11-20 06:36:33,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 06:36:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 221 transitions. [2021-11-20 06:36:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 06:36:33,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:33,692 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:36:33,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:36:33,692 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:33,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1319361279, now seen corresponding path program 1 times [2021-11-20 06:36:33,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:33,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750426536] [2021-11-20 06:36:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:33,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:36:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:36:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-20 06:36:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:33,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:33,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750426536] [2021-11-20 06:36:33,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750426536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:33,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:36:33,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:36:33,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781681647] [2021-11-20 06:36:33,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:33,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:36:33,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:33,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:36:33,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:36:33,764 INFO L87 Difference]: Start difference. First operand 186 states and 221 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 06:36:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:33,997 INFO L93 Difference]: Finished difference Result 360 states and 441 transitions. [2021-11-20 06:36:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:36:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2021-11-20 06:36:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:34,003 INFO L225 Difference]: With dead ends: 360 [2021-11-20 06:36:34,003 INFO L226 Difference]: Without dead ends: 358 [2021-11-20 06:36:34,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:36:34,007 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 253 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:34,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 241 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:36:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-20 06:36:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 275. [2021-11-20 06:36:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 210 states have (on average 1.2190476190476192) internal successors, (256), 223 states have internal predecessors, (256), 31 states have call successors, (31), 28 states have call predecessors, (31), 33 states have return successors, (46), 31 states have call predecessors, (46), 31 states have call successors, (46) [2021-11-20 06:36:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 333 transitions. [2021-11-20 06:36:34,052 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 333 transitions. Word has length 48 [2021-11-20 06:36:34,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:34,053 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 333 transitions. [2021-11-20 06:36:34,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-20 06:36:34,053 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 333 transitions. [2021-11-20 06:36:34,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-20 06:36:34,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:34,059 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-11-20 06:36:34,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:36:34,060 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:34,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1077253484, now seen corresponding path program 1 times [2021-11-20 06:36:34,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:34,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257977107] [2021-11-20 06:36:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:34,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:36:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 06:36:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-20 06:36:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-20 06:36:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,229 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:36:34,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:34,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257977107] [2021-11-20 06:36:34,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257977107] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:34,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368192211] [2021-11-20 06:36:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:34,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:34,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:34,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:34,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:36:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:34,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:36:34,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:36:34,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:36:34,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368192211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:34,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:36:34,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2021-11-20 06:36:34,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042364047] [2021-11-20 06:36:34,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:34,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:36:34,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:34,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:36:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:36:34,666 INFO L87 Difference]: Start difference. First operand 275 states and 333 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-20 06:36:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:34,696 INFO L93 Difference]: Finished difference Result 461 states and 565 transitions. [2021-11-20 06:36:34,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:36:34,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 86 [2021-11-20 06:36:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:34,700 INFO L225 Difference]: With dead ends: 461 [2021-11-20 06:36:34,701 INFO L226 Difference]: Without dead ends: 240 [2021-11-20 06:36:34,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:36:34,704 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 37 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:34,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 190 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:36:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-20 06:36:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-11-20 06:36:34,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 182 states have (on average 1.2142857142857142) internal successors, (221), 194 states have internal predecessors, (221), 28 states have call successors, (28), 25 states have call predecessors, (28), 29 states have return successors, (36), 28 states have call predecessors, (36), 28 states have call successors, (36) [2021-11-20 06:36:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 285 transitions. [2021-11-20 06:36:34,738 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 285 transitions. Word has length 86 [2021-11-20 06:36:34,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:34,740 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 285 transitions. [2021-11-20 06:36:34,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-20 06:36:34,741 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 285 transitions. [2021-11-20 06:36:34,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-20 06:36:34,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:34,743 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:36:34,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:36:34,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:34,970 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:34,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:34,971 INFO L85 PathProgramCache]: Analyzing trace with hash 187606056, now seen corresponding path program 1 times [2021-11-20 06:36:34,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:34,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212413450] [2021-11-20 06:36:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:34,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:36:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:36:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 06:36:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 06:36:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:36:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:36:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-20 06:36:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-20 06:36:35,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:35,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212413450] [2021-11-20 06:36:35,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212413450] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:35,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957842592] [2021-11-20 06:36:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:35,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:35,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:35,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:35,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:36:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:35,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 06:36:35,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:36:35,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:36:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:36:36,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957842592] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:36,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 06:36:36,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 14 [2021-11-20 06:36:36,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169690071] [2021-11-20 06:36:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:36,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:36:36,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:36:36,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:36:36,313 INFO L87 Difference]: Start difference. First operand 240 states and 285 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:36:36,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:36,425 INFO L93 Difference]: Finished difference Result 684 states and 829 transitions. [2021-11-20 06:36:36,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:36:36,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2021-11-20 06:36:36,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:36,429 INFO L225 Difference]: With dead ends: 684 [2021-11-20 06:36:36,429 INFO L226 Difference]: Without dead ends: 452 [2021-11-20 06:36:36,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 188 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:36:36,431 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 51 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:36,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 423 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:36:36,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-11-20 06:36:36,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2021-11-20 06:36:36,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 306 states have (on average 1.1862745098039216) internal successors, (363), 327 states have internal predecessors, (363), 49 states have call successors, (49), 44 states have call predecessors, (49), 52 states have return successors, (65), 49 states have call predecessors, (65), 49 states have call successors, (65) [2021-11-20 06:36:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 477 transitions. [2021-11-20 06:36:36,470 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 477 transitions. Word has length 91 [2021-11-20 06:36:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:36,470 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 477 transitions. [2021-11-20 06:36:36,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:36:36,470 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 477 transitions. [2021-11-20 06:36:36,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-20 06:36:36,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:36:36,473 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:36:36,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:36:36,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:36,698 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:36:36,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:36:36,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1820456588, now seen corresponding path program 1 times [2021-11-20 06:36:36,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:36:36,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513516313] [2021-11-20 06:36:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:36,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:36:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:36:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:36:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:36:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:36:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-20 06:36:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-20 06:36:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-20 06:36:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:36:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-20 06:36:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-20 06:36:36,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:36:36,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513516313] [2021-11-20 06:36:36,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513516313] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:36:36,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440372101] [2021-11-20 06:36:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:36:36,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:36:36,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:36:36,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:36:36,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:36:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:36:36,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:36:36,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:36:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-20 06:36:37,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:36:37,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440372101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:36:37,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:36:37,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2021-11-20 06:36:37,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741077238] [2021-11-20 06:36:37,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:36:37,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:36:37,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:36:37,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:36:37,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-20 06:36:37,213 INFO L87 Difference]: Start difference. First operand 408 states and 477 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 06:36:37,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:36:37,327 INFO L93 Difference]: Finished difference Result 766 states and 901 transitions. [2021-11-20 06:36:37,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:36:37,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2021-11-20 06:36:37,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:36:37,329 INFO L225 Difference]: With dead ends: 766 [2021-11-20 06:36:37,329 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:36:37,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:36:37,332 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 46 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:36:37,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 728 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:36:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:36:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:36:37,333 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) [2021-11-20 06:36:37,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:36:37,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2021-11-20 06:36:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:36:37,334 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:36:37,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 06:36:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:36:37,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:36:37,337 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:36:37,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:36:37,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 06:36:37,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:36:41,439 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 87 93) no Hoare annotation was computed. [2021-11-20 06:36:41,439 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 87 93) the Hoare annotation is: true [2021-11-20 06:36:41,439 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 373 384) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~pumpRunning~0))) (.cse5 (not (<= |old(~methaneLevelCritical~0)| 0))) (.cse6 (and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0))) (.cse7 (not (<= 0 |old(~methaneLevelCritical~0)|))) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 |old(~methaneLevelCritical~0)|))) (.cse8 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6 .cse7 .cse8) (or .cse1 .cse2 .cse5 .cse6 .cse7 .cse8) (or .cse0 .cse4 .cse1 .cse3 .cse8))) [2021-11-20 06:36:41,439 INFO L858 garLoopResultBuilder]: For program point L377-1(lines 373 384) no Hoare annotation was computed. [2021-11-20 06:36:41,440 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 373 384) no Hoare annotation was computed. [2021-11-20 06:36:41,440 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 817 846) no Hoare annotation was computed. [2021-11-20 06:36:41,440 INFO L858 garLoopResultBuilder]: For program point L831(lines 831 835) no Hoare annotation was computed. [2021-11-20 06:36:41,440 INFO L861 garLoopResultBuilder]: At program point L831-1(lines 831 835) the Hoare annotation is: true [2021-11-20 06:36:41,440 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 817 846) the Hoare annotation is: true [2021-11-20 06:36:41,440 INFO L858 garLoopResultBuilder]: For program point L828(line 828) no Hoare annotation was computed. [2021-11-20 06:36:41,441 INFO L861 garLoopResultBuilder]: At program point L827-2(lines 827 841) the Hoare annotation is: true [2021-11-20 06:36:41,441 INFO L861 garLoopResultBuilder]: At program point L823(line 823) the Hoare annotation is: true [2021-11-20 06:36:41,441 INFO L858 garLoopResultBuilder]: For program point L823-1(line 823) no Hoare annotation was computed. [2021-11-20 06:36:41,441 INFO L861 garLoopResultBuilder]: At program point L842(lines 817 846) the Hoare annotation is: true [2021-11-20 06:36:41,441 INFO L858 garLoopResultBuilder]: For program point L838(line 838) no Hoare annotation was computed. [2021-11-20 06:36:41,441 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 385 393) the Hoare annotation is: true [2021-11-20 06:36:41,441 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 385 393) no Hoare annotation was computed. [2021-11-20 06:36:41,441 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 385 393) no Hoare annotation was computed. [2021-11-20 06:36:41,441 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 357) no Hoare annotation was computed. [2021-11-20 06:36:41,442 INFO L854 garLoopResultBuilder]: At program point L353-2(lines 349 360) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse3 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse3 .cse0 .cse2))) [2021-11-20 06:36:41,442 INFO L854 garLoopResultBuilder]: At program point L159(lines 154 161) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (or (and (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 .cse2))) [2021-11-20 06:36:41,442 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 335) no Hoare annotation was computed. [2021-11-20 06:36:41,442 INFO L854 garLoopResultBuilder]: At program point L135(line 135) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 .cse2))) [2021-11-20 06:36:41,442 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 63 86) no Hoare annotation was computed. [2021-11-20 06:36:41,443 INFO L858 garLoopResultBuilder]: For program point L445(line 445) no Hoare annotation was computed. [2021-11-20 06:36:41,443 INFO L854 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1) (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1))) [2021-11-20 06:36:41,443 INFO L854 garLoopResultBuilder]: At program point L140-1(lines 121 145) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (not .cse6)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and .cse4 .cse5)) (or .cse2 (and .cse0 .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|) .cse6) .cse7 (not (<= 1 ~methaneLevelCritical~0))) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (and .cse4 .cse8) .cse2 (and (<= 1 ~pumpRunning~0) .cse5 .cse8) .cse3)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (and .cse0 .cse4 .cse6) .cse7 .cse3)))) [2021-11-20 06:36:41,443 INFO L854 garLoopResultBuilder]: At program point L169(lines 162 172) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse0 .cse1 .cse3) (or .cse4 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) .cse4 .cse0 .cse2))) [2021-11-20 06:36:41,444 INFO L858 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2021-11-20 06:36:41,444 INFO L854 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (not .cse6)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and .cse4 .cse5)) (or .cse2 (and .cse0 .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|) .cse6) .cse7 (not (<= 1 ~methaneLevelCritical~0))) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (and .cse4 .cse8) .cse2 (and (<= 1 ~pumpRunning~0) .cse5 .cse8) .cse3)) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (and .cse0 .cse4 .cse6) .cse7 .cse3)))) [2021-11-20 06:36:41,444 INFO L858 garLoopResultBuilder]: For program point L322-1(line 322) no Hoare annotation was computed. [2021-11-20 06:36:41,444 INFO L854 garLoopResultBuilder]: At program point L446(lines 441 448) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 .cse1))) [2021-11-20 06:36:41,445 INFO L854 garLoopResultBuilder]: At program point L178(lines 173 181) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 0)) (.cse9 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse8 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (<= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and .cse4 .cse5)) (or .cse0 .cse1 .cse2 .cse6 .cse7) (or .cse2 .cse8 .cse3 (and .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) .cse9 (<= 1 |timeShift_processEnvironment_~tmp~1#1|))) (let ((.cse10 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 .cse2 (and (<= 1 ~pumpRunning~0) .cse5 .cse10) .cse3 (and .cse4 .cse9 .cse10))) (or .cse2 .cse8 .cse6 .cse7))) [2021-11-20 06:36:41,445 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 66 85) no Hoare annotation was computed. [2021-11-20 06:36:41,445 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 137) no Hoare annotation was computed. [2021-11-20 06:36:41,445 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 142) no Hoare annotation was computed. [2021-11-20 06:36:41,445 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 63 86) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= 0 ~methaneLevelCritical~0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse2 .cse3) .cse4) (or .cse1 .cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) .cse4) (or .cse0 .cse2 .cse1 .cse5 (not (<= 1 ~methaneLevelCritical~0))))) [2021-11-20 06:36:41,445 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2021-11-20 06:36:41,446 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2021-11-20 06:36:41,446 INFO L858 garLoopResultBuilder]: For program point L328(lines 328 338) no Hoare annotation was computed. [2021-11-20 06:36:41,446 INFO L854 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse3 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse3 .cse0 .cse2))) [2021-11-20 06:36:41,446 INFO L858 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2021-11-20 06:36:41,446 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 341) no Hoare annotation was computed. [2021-11-20 06:36:41,447 INFO L854 garLoopResultBuilder]: At program point L324-1(lines 316 344) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse8 (not (<= ~methaneLevelCritical~0 0))) (.cse9 (not (<= 0 ~methaneLevelCritical~0))) (.cse6 (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0)) (.cse7 (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1|)) (.cse11 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse13 (<= 1 ~pumpRunning~0)) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not .cse5)) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse14 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 (and .cse10 .cse4 .cse6 .cse7)) (or .cse2 .cse3 .cse11 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse9) (or .cse2 .cse11 .cse0 .cse8 .cse9 (and .cse10 .cse3 .cse4 .cse6 .cse12 .cse7) (and .cse13 .cse4 .cse6 .cse12 .cse7)) (or .cse2 .cse11 .cse0 .cse14 (and .cse13 .cse12) (and .cse10 .cse3 .cse4 .cse12)) (or .cse0 .cse1 .cse14 (and .cse2 .cse3 .cse4 (<= 1 |timeShift_isMethaneAlarm_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|) .cse5))))) [2021-11-20 06:36:41,447 INFO L858 garLoopResultBuilder]: For program point L287(lines 287 291) no Hoare annotation was computed. [2021-11-20 06:36:41,447 INFO L854 garLoopResultBuilder]: At program point L287-2(lines 281 292) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= 0 ~methaneLevelCritical~0))) (or (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse2) (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2))) [2021-11-20 06:36:41,447 INFO L861 garLoopResultBuilder]: At program point L886(lines 878 888) the Hoare annotation is: true [2021-11-20 06:36:41,448 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 277) no Hoare annotation was computed. [2021-11-20 06:36:41,448 INFO L861 garLoopResultBuilder]: At program point L911(lines 892 914) the Hoare annotation is: true [2021-11-20 06:36:41,448 INFO L858 garLoopResultBuilder]: For program point L271-1(lines 271 277) no Hoare annotation was computed. [2021-11-20 06:36:41,448 INFO L861 garLoopResultBuilder]: At program point L300(lines 241 304) the Hoare annotation is: true [2021-11-20 06:36:41,448 INFO L854 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (<= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3))) [2021-11-20 06:36:41,448 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:36:41,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:36:41,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:36:41,449 INFO L854 garLoopResultBuilder]: At program point L313(lines 308 315) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-11-20 06:36:41,449 INFO L854 garLoopResultBuilder]: At program point L875(lines 871 877) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-11-20 06:36:41,449 INFO L854 garLoopResultBuilder]: At program point L297(lines 250 298) the Hoare annotation is: false [2021-11-20 06:36:41,449 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:36:41,450 INFO L858 garLoopResultBuilder]: For program point L252(lines 251 296) no Hoare annotation was computed. [2021-11-20 06:36:41,450 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 292) no Hoare annotation was computed. [2021-11-20 06:36:41,450 INFO L854 garLoopResultBuilder]: At program point L946(lines 941 949) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-11-20 06:36:41,450 INFO L854 garLoopResultBuilder]: At program point L273(line 273) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (<= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3))) [2021-11-20 06:36:41,450 INFO L854 garLoopResultBuilder]: At program point L938(lines 934 940) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-11-20 06:36:41,451 INFO L854 garLoopResultBuilder]: At program point L294(lines 251 296) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (<= 0 ~methaneLevelCritical~0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3))) [2021-11-20 06:36:41,451 INFO L858 garLoopResultBuilder]: For program point L261(lines 261 267) no Hoare annotation was computed. [2021-11-20 06:36:41,451 INFO L858 garLoopResultBuilder]: For program point L261-1(lines 261 267) no Hoare annotation was computed. [2021-11-20 06:36:41,451 INFO L858 garLoopResultBuilder]: For program point L253(lines 253 257) no Hoare annotation was computed. [2021-11-20 06:36:41,451 INFO L858 garLoopResultBuilder]: For program point L902(lines 902 909) no Hoare annotation was computed. [2021-11-20 06:36:41,451 INFO L858 garLoopResultBuilder]: For program point L902-2(lines 902 909) no Hoare annotation was computed. [2021-11-20 06:36:41,452 INFO L854 garLoopResultBuilder]: At program point L931(lines 927 933) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1)) [2021-11-20 06:36:41,452 INFO L858 garLoopResultBuilder]: For program point L227-2(lines 227 231) no Hoare annotation was computed. [2021-11-20 06:36:41,452 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 95 119) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2021-11-20 06:36:41,452 INFO L854 garLoopResultBuilder]: At program point L151(lines 146 153) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2021-11-20 06:36:41,452 INFO L854 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse1))) [2021-11-20 06:36:41,453 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 95 119) no Hoare annotation was computed. [2021-11-20 06:36:41,453 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 436) no Hoare annotation was computed. [2021-11-20 06:36:41,453 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 95 119) no Hoare annotation was computed. [2021-11-20 06:36:41,453 INFO L854 garLoopResultBuilder]: At program point L435(lines 426 439) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2021-11-20 06:36:41,453 INFO L854 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) .cse2 .cse3) (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2021-11-20 06:36:41,454 INFO L854 garLoopResultBuilder]: At program point L233(lines 218 236) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 .cse2 .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~2#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0)) .cse2 .cse3) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= ~methaneLevelCritical~0 0)) .cse2))) [2021-11-20 06:36:41,454 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 111) no Hoare annotation was computed. [2021-11-20 06:36:41,454 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 116) no Hoare annotation was computed. [2021-11-20 06:36:41,454 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 231) no Hoare annotation was computed. [2021-11-20 06:36:41,454 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 361 372) no Hoare annotation was computed. [2021-11-20 06:36:41,454 INFO L858 garLoopResultBuilder]: For program point L365-1(lines 361 372) no Hoare annotation was computed. [2021-11-20 06:36:41,455 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 361 372) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~pumpRunning~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 0 ~methaneLevelCritical~0))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse3) (or (not (= ~pumpRunning~0 0)) .cse0 .cse2 .cse3 .cse4))) [2021-11-20 06:36:41,458 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:36:41,460 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:36:41,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:36:41 BoogieIcfgContainer [2021-11-20 06:36:41,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:36:41,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:36:41,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:36:41,492 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:36:41,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:36:30" (3/4) ... [2021-11-20 06:36:41,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:36:41,502 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-20 06:36:41,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-20 06:36:41,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-20 06:36:41,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-20 06:36:41,503 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-20 06:36:41,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:36:41,504 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-20 06:36:41,513 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2021-11-20 06:36:41,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-20 06:36:41,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:36:41,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:36:41,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:36:41,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:36:41,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:36:41,543 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,544 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(1 == systemActive) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(0 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp <= 0) && 0 <= tmp)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp <= 0) && 0 <= tmp)) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp)) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) [2021-11-20 06:36:41,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((1 <= \result || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,545 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((pumpRunning == 0 && 1 <= \result) && \result == 0) && 1 <= tmp))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((1 <= \result && 1 <= tmp) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\result == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,546 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp___0 == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,547 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) [2021-11-20 06:36:41,597 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:36:41,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:36:41,598 INFO L158 Benchmark]: Toolchain (without parser) took 11879.29ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 57.0MB in the beginning and 129.4MB in the end (delta: -72.4MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2021-11-20 06:36:41,599 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:36:41,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.25ms. Allocated memory is still 98.6MB. Free memory was 56.8MB in the beginning and 60.3MB in the end (delta: -3.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:36:41,600 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.64ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 58.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:36:41,600 INFO L158 Benchmark]: Boogie Preprocessor took 27.87ms. Allocated memory is still 98.6MB. Free memory was 58.1MB in the beginning and 56.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:36:41,601 INFO L158 Benchmark]: RCFGBuilder took 575.16ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 40.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 06:36:41,601 INFO L158 Benchmark]: TraceAbstraction took 10527.79ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 40.0MB in the beginning and 46.7MB in the end (delta: -6.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2021-11-20 06:36:41,602 INFO L158 Benchmark]: Witness Printer took 105.57ms. Allocated memory is still 155.2MB. Free memory was 46.7MB in the beginning and 129.4MB in the end (delta: -82.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-20 06:36:41,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 98.6MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.25ms. Allocated memory is still 98.6MB. Free memory was 56.8MB in the beginning and 60.3MB in the end (delta: -3.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.64ms. Allocated memory is still 98.6MB. Free memory was 60.3MB in the beginning and 58.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.87ms. Allocated memory is still 98.6MB. Free memory was 58.1MB in the beginning and 56.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.16ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 40.4MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10527.79ms. Allocated memory was 98.6MB in the beginning and 155.2MB in the end (delta: 56.6MB). Free memory was 40.0MB in the beginning and 46.7MB in the end (delta: -6.6MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Witness Printer took 105.57ms. Allocated memory is still 155.2MB. Free memory was 46.7MB in the beginning and 129.4MB in the end (delta: -82.7MB). Peak memory consumption was 7.5MB. 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: 445]: 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 8 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1123 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1094 mSDsluCounter, 3586 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2341 mSDsCounter, 278 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 792 IncrementalHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 278 mSolverCounterUnsat, 1245 mSDtfsCounter, 792 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 450 SyntacticMatches, 3 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=11, InterpolantAutomatonStates: 78, 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, 12 MinimizatonAttempts, 196 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 937 PreInvPairs, 1035 NumberOfFragments, 1761 HoareAnnotationTreeSize, 937 FomulaSimplifications, 74 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 40 FomulaSimplificationsInter, 7199 FormulaSimplificationTreeSizeReductionInter, 3.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 891 NumberOfCodeBlocks, 891 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 966 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1384 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 213/235 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: 349]: Loop Invariant Derived loop invariant: ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\result == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(1 == systemActive) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(0 <= methaneLevelCritical))) && ((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && 1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: (((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && (((1 <= \result || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0) && 0 <= methaneLevelCritical) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0) && 0 <= methaneLevelCritical)) || (((1 <= pumpRunning && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && (((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp___0 == 0)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp <= 0) && 0 <= tmp)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp <= 0) && 0 <= tmp)) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp)) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp <= 0) && \old(waterLevel) == waterLevel) && 0 <= tmp))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 <= \result) && 1 <= tmp) && 1 == systemActive)) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(0 <= methaneLevelCritical)) && ((((1 <= \result && 1 <= tmp) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0)) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(0 <= methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= methaneLevelCritical)) || (((pumpRunning == 0 && 1 <= \result) && \result == 0) && 1 <= tmp))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical <= 0)) || !(0 <= methaneLevelCritical)) RESULT: Ultimate proved your program to be correct! [2021-11-20 06:36:41,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2c0b55-63f8-479d-a375-be388c87cc86/bin/uautomizer-DQz5hQGWxF/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