./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX --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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:32:25,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:32:25,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:32:25,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:32:25,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:32:25,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:32:25,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:32:25,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:32:25,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:32:25,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:32:25,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:32:25,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:32:25,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:32:25,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:32:25,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:32:25,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:32:25,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:32:25,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:32:25,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:32:25,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:32:25,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:32:25,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:32:25,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:32:25,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:32:25,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:32:25,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:32:25,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:32:25,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:32:25,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:32:25,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:32:25,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:32:25,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:32:25,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:32:25,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:32:25,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:32:25,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:32:25,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:32:25,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:32:25,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:32:25,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:32:25,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:32:25,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:32:25,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:32:25,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:32:25,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:32:25,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:32:25,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:32:25,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:32:25,430 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:32:25,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:32:25,430 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:32:25,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:32:25,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:32:25,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:32:25,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:32:25,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:32:25,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:32:25,433 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:32:25,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:32:25,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:32:25,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:32:25,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:32:25,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:32:25,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:32:25,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:32:25,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:32:25,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:32:25,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:32:25,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:32:25,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:32:25,436 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:32:25,436 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:32:25,436 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:32:25,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:32:25,437 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_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2021-11-09 09:32:25,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:32:25,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:32:25,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:32:25,774 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:32:25,775 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:32:25,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-09 09:32:25,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/data/dc2b03191/c0db708dc5e54de9a7a694e2e27e57e3/FLAGd46375551 [2021-11-09 09:32:26,494 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:32:26,495 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-09 09:32:26,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/data/dc2b03191/c0db708dc5e54de9a7a694e2e27e57e3/FLAGd46375551 [2021-11-09 09:32:26,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/data/dc2b03191/c0db708dc5e54de9a7a694e2e27e57e3 [2021-11-09 09:32:26,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:32:26,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:32:26,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:32:26,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:32:26,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:32:26,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:32:26" (1/1) ... [2021-11-09 09:32:26,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab0ef5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:26, skipping insertion in model container [2021-11-09 09:32:26,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:32:26" (1/1) ... [2021-11-09 09:32:26,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:32:26,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:32:27,255 WARN L228 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_709bd437-86d1-4472-8fb8-703e7aa17809/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-09 09:32:27,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:32:27,281 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:32:27,425 WARN L228 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_709bd437-86d1-4472-8fb8-703e7aa17809/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-09 09:32:27,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:32:27,462 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:32:27,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27 WrapperNode [2021-11-09 09:32:27,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:32:27,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:32:27,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:32:27,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:32:27,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:32:27,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:32:27,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:32:27,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:32:27,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:32:27,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:32:27,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:32:27,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:32:27,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (1/1) ... [2021-11-09 09:32:27,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:32:27,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:32:27,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:32:27,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:32:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:32:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:32:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:32:27,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:32:28,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:32:28,890 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-11-09 09:32:28,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:32:28 BoogieIcfgContainer [2021-11-09 09:32:28,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:32:28,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:32:28,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:32:28,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:32:28,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:32:26" (1/3) ... [2021-11-09 09:32:28,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660c4a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:32:28, skipping insertion in model container [2021-11-09 09:32:28,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:27" (2/3) ... [2021-11-09 09:32:28,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660c4a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:32:28, skipping insertion in model container [2021-11-09 09:32:28,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:32:28" (3/3) ... [2021-11-09 09:32:28,902 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2021-11-09 09:32:28,908 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:32:28,908 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-09 09:32:28,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:32:28,974 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 [2021-11-09 09:32:28,974 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-09 09:32:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 131 states have (on average 1.534351145038168) internal successors, (201), 134 states have internal predecessors, (201), 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) [2021-11-09 09:32:29,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-09 09:32:29,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:29,005 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:32:29,006 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:29,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:29,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1916587088, now seen corresponding path program 1 times [2021-11-09 09:32:29,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:29,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185796624] [2021-11-09 09:32:29,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:29,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:29,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:29,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185796624] [2021-11-09 09:32:29,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185796624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:29,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:29,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:32:29,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934019512] [2021-11-09 09:32:29,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:32:29,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:32:29,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:32:29,400 INFO L87 Difference]: Start difference. First operand has 135 states, 131 states have (on average 1.534351145038168) internal successors, (201), 134 states have internal predecessors, (201), 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) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-09 09:32:29,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:29,458 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2021-11-09 09:32:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:32:29,460 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) Word has length 16 [2021-11-09 09:32:29,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:29,476 INFO L225 Difference]: With dead ends: 264 [2021-11-09 09:32:29,477 INFO L226 Difference]: Without dead ends: 131 [2021-11-09 09:32:29,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:32:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-09 09:32:29,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-09 09:32:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.4765625) internal successors, (189), 130 states have internal predecessors, (189), 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) [2021-11-09 09:32:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2021-11-09 09:32:29,589 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2021-11-09 09:32:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:29,590 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2021-11-09 09:32:29,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-09 09:32:29,591 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2021-11-09 09:32:29,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-09 09:32:29,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:29,593 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:32:29,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:32:29,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:29,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:29,598 INFO L85 PathProgramCache]: Analyzing trace with hash 869830191, now seen corresponding path program 1 times [2021-11-09 09:32:29,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:29,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447587961] [2021-11-09 09:32:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:29,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:29,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:29,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447587961] [2021-11-09 09:32:29,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447587961] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:29,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:29,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:32:29,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786230505] [2021-11-09 09:32:29,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:32:29,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:29,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:32:29,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:32:29,777 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-09 09:32:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:29,805 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2021-11-09 09:32:29,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:32:29,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) Word has length 17 [2021-11-09 09:32:29,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:29,809 INFO L225 Difference]: With dead ends: 131 [2021-11-09 09:32:29,810 INFO L226 Difference]: Without dead ends: 53 [2021-11-09 09:32:29,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:32:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-09 09:32:29,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-09 09:32:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 52 states have internal predecessors, (76), 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) [2021-11-09 09:32:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-11-09 09:32:29,824 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-11-09 09:32:29,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:29,825 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-11-09 09:32:29,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-11-09 09:32:29,825 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-11-09 09:32:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-09 09:32:29,827 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:29,828 INFO L513 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] [2021-11-09 09:32:29,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:32:29,829 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:29,840 INFO L85 PathProgramCache]: Analyzing trace with hash 105563969, now seen corresponding path program 1 times [2021-11-09 09:32:29,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:29,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305228285] [2021-11-09 09:32:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:29,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:29,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:29,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305228285] [2021-11-09 09:32:29,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305228285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:29,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:29,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:29,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070240042] [2021-11-09 09:32:29,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:32:29,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:29,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:32:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:32:29,937 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-09 09:32:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:30,140 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2021-11-09 09:32:30,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:32:30,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) Word has length 22 [2021-11-09 09:32:30,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:30,142 INFO L225 Difference]: With dead ends: 100 [2021-11-09 09:32:30,142 INFO L226 Difference]: Without dead ends: 53 [2021-11-09 09:32:30,143 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:32:30,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-09 09:32:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-09 09:32:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 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) [2021-11-09 09:32:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2021-11-09 09:32:30,152 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2021-11-09 09:32:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:30,153 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2021-11-09 09:32:30,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-11-09 09:32:30,154 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2021-11-09 09:32:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-09 09:32:30,156 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:30,156 INFO L513 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] [2021-11-09 09:32:30,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:32:30,157 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:30,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:30,158 INFO L85 PathProgramCache]: Analyzing trace with hash -72226312, now seen corresponding path program 1 times [2021-11-09 09:32:30,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:30,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977742690] [2021-11-09 09:32:30,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:30,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:30,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:30,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977742690] [2021-11-09 09:32:30,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977742690] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:30,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:30,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:32:30,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006986087] [2021-11-09 09:32:30,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:32:30,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:32:30,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:32:30,273 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-09 09:32:30,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:30,322 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2021-11-09 09:32:30,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:32:30,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) Word has length 24 [2021-11-09 09:32:30,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:30,323 INFO L225 Difference]: With dead ends: 121 [2021-11-09 09:32:30,324 INFO L226 Difference]: Without dead ends: 74 [2021-11-09 09:32:30,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:32:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-09 09:32:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-11-09 09:32:30,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.4225352112676057) internal successors, (101), 71 states have internal predecessors, (101), 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) [2021-11-09 09:32:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2021-11-09 09:32:30,332 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2021-11-09 09:32:30,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:30,333 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2021-11-09 09:32:30,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-11-09 09:32:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2021-11-09 09:32:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-09 09:32:30,334 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:30,334 INFO L513 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] [2021-11-09 09:32:30,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:32:30,335 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:30,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:30,335 INFO L85 PathProgramCache]: Analyzing trace with hash 615192364, now seen corresponding path program 1 times [2021-11-09 09:32:30,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:30,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397573574] [2021-11-09 09:32:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:30,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:30,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:30,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397573574] [2021-11-09 09:32:30,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397573574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:30,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:30,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:32:30,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951931812] [2021-11-09 09:32:30,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:32:30,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:32:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:32:30,459 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-09 09:32:30,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:30,557 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2021-11-09 09:32:30,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:32:30,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) Word has length 30 [2021-11-09 09:32:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:30,561 INFO L225 Difference]: With dead ends: 253 [2021-11-09 09:32:30,562 INFO L226 Difference]: Without dead ends: 187 [2021-11-09 09:32:30,562 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:32:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-09 09:32:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2021-11-09 09:32:30,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 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) [2021-11-09 09:32:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2021-11-09 09:32:30,592 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2021-11-09 09:32:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:30,593 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2021-11-09 09:32:30,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-09 09:32:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2021-11-09 09:32:30,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 09:32:30,599 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:30,599 INFO L513 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] [2021-11-09 09:32:30,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:32:30,600 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:30,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:30,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1392623830, now seen corresponding path program 1 times [2021-11-09 09:32:30,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:30,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823440121] [2021-11-09 09:32:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:30,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:30,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:30,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:30,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823440121] [2021-11-09 09:32:30,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823440121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:30,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:30,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:32:30,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682147713] [2021-11-09 09:32:30,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:32:30,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:30,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:32:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:32:30,691 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-09 09:32:30,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:30,828 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2021-11-09 09:32:30,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 09:32:30,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) Word has length 31 [2021-11-09 09:32:30,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:30,836 INFO L225 Difference]: With dead ends: 238 [2021-11-09 09:32:30,836 INFO L226 Difference]: Without dead ends: 172 [2021-11-09 09:32:30,839 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:32:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-11-09 09:32:30,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-11-09 09:32:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.3869047619047619) internal successors, (233), 168 states have internal predecessors, (233), 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) [2021-11-09 09:32:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2021-11-09 09:32:30,863 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2021-11-09 09:32:30,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:30,863 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-11-09 09:32:30,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-11-09 09:32:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2021-11-09 09:32:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 09:32:30,864 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:30,865 INFO L513 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] [2021-11-09 09:32:30,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:32:30,867 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:30,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1134458392, now seen corresponding path program 1 times [2021-11-09 09:32:30,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:30,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425239815] [2021-11-09 09:32:30,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:30,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:30,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:30,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425239815] [2021-11-09 09:32:30,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425239815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:30,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:30,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:32:30,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487225098] [2021-11-09 09:32:30,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 09:32:30,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 09:32:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 09:32:30,942 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-09 09:32:31,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:31,002 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2021-11-09 09:32:31,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:32:31,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) Word has length 31 [2021-11-09 09:32:31,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:31,007 INFO L225 Difference]: With dead ends: 473 [2021-11-09 09:32:31,008 INFO L226 Difference]: Without dead ends: 352 [2021-11-09 09:32:31,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:32:31,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-11-09 09:32:31,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2021-11-09 09:32:31,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.375) internal successors, (231), 168 states have internal predecessors, (231), 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) [2021-11-09 09:32:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2021-11-09 09:32:31,044 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2021-11-09 09:32:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:31,044 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2021-11-09 09:32:31,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-11-09 09:32:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2021-11-09 09:32:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-09 09:32:31,046 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:31,046 INFO L513 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] [2021-11-09 09:32:31,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 09:32:31,047 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:31,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1527485402, now seen corresponding path program 1 times [2021-11-09 09:32:31,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:31,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353793676] [2021-11-09 09:32:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:31,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:31,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:31,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353793676] [2021-11-09 09:32:31,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353793676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:31,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:31,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:32:31,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332327616] [2021-11-09 09:32:31,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:32:31,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:31,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:32:31,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:32:31,166 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-11-09 09:32:31,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:31,327 INFO L93 Difference]: Finished difference Result 592 states and 826 transitions. [2021-11-09 09:32:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:32:31,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) Word has length 31 [2021-11-09 09:32:31,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:31,331 INFO L225 Difference]: With dead ends: 592 [2021-11-09 09:32:31,331 INFO L226 Difference]: Without dead ends: 429 [2021-11-09 09:32:31,332 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:32:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-11-09 09:32:31,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 178. [2021-11-09 09:32:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.344632768361582) internal successors, (238), 177 states have internal predecessors, (238), 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) [2021-11-09 09:32:31,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2021-11-09 09:32:31,357 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2021-11-09 09:32:31,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:31,359 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2021-11-09 09:32:31,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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) [2021-11-09 09:32:31,359 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2021-11-09 09:32:31,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 09:32:31,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:31,365 INFO L513 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] [2021-11-09 09:32:31,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 09:32:31,366 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:31,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:31,366 INFO L85 PathProgramCache]: Analyzing trace with hash -987336539, now seen corresponding path program 1 times [2021-11-09 09:32:31,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:31,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994296087] [2021-11-09 09:32:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:31,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:31,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:31,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994296087] [2021-11-09 09:32:31,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994296087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:31,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:31,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:31,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048178250] [2021-11-09 09:32:31,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:32:31,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:31,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:32:31,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:32:31,485 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-09 09:32:31,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:31,682 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2021-11-09 09:32:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:32:31,683 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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) Word has length 34 [2021-11-09 09:32:31,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:31,687 INFO L225 Difference]: With dead ends: 912 [2021-11-09 09:32:31,688 INFO L226 Difference]: Without dead ends: 740 [2021-11-09 09:32:31,688 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:32:31,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-11-09 09:32:31,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2021-11-09 09:32:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 337 states have (on average 1.3204747774480712) internal successors, (445), 337 states have internal predecessors, (445), 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) [2021-11-09 09:32:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2021-11-09 09:32:31,744 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2021-11-09 09:32:31,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:31,746 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2021-11-09 09:32:31,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-09 09:32:31,747 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2021-11-09 09:32:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-09 09:32:31,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:31,748 INFO L513 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] [2021-11-09 09:32:31,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 09:32:31,749 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:31,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:31,749 INFO L85 PathProgramCache]: Analyzing trace with hash 787670823, now seen corresponding path program 1 times [2021-11-09 09:32:31,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:31,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911986452] [2021-11-09 09:32:31,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:31,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:31,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:31,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911986452] [2021-11-09 09:32:31,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911986452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:31,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:31,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:31,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528488556] [2021-11-09 09:32:31,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:32:31,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:31,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:32:31,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:32:31,838 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-09 09:32:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:32,119 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2021-11-09 09:32:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:32:32,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) Word has length 34 [2021-11-09 09:32:32,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:32,126 INFO L225 Difference]: With dead ends: 752 [2021-11-09 09:32:32,126 INFO L226 Difference]: Without dead ends: 510 [2021-11-09 09:32:32,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:32:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-11-09 09:32:32,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2021-11-09 09:32:32,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.3081570996978853) internal successors, (433), 331 states have internal predecessors, (433), 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) [2021-11-09 09:32:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2021-11-09 09:32:32,187 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2021-11-09 09:32:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:32,188 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2021-11-09 09:32:32,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-09 09:32:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2021-11-09 09:32:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-09 09:32:32,190 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:32,190 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 09:32:32,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 09:32:32,191 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:32,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:32,192 INFO L85 PathProgramCache]: Analyzing trace with hash -771750108, now seen corresponding path program 1 times [2021-11-09 09:32:32,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:32,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397625327] [2021-11-09 09:32:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:32,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-09 09:32:32,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:32,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397625327] [2021-11-09 09:32:32,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397625327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:32,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:32,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:32,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288411666] [2021-11-09 09:32:32,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:32:32,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:32,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:32:32,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:32:32,274 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2021-11-09 09:32:32,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:32,384 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2021-11-09 09:32:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:32:32,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) Word has length 53 [2021-11-09 09:32:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:32,388 INFO L225 Difference]: With dead ends: 753 [2021-11-09 09:32:32,389 INFO L226 Difference]: Without dead ends: 427 [2021-11-09 09:32:32,390 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:32:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-11-09 09:32:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2021-11-09 09:32:32,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.2900302114803626) internal successors, (427), 331 states have internal predecessors, (427), 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) [2021-11-09 09:32:32,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2021-11-09 09:32:32,432 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2021-11-09 09:32:32,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:32,432 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2021-11-09 09:32:32,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2021-11-09 09:32:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2021-11-09 09:32:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-09 09:32:32,434 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:32,434 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 09:32:32,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 09:32:32,435 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:32,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash -844136666, now seen corresponding path program 1 times [2021-11-09 09:32:32,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:32,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450616676] [2021-11-09 09:32:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:32,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:32,536 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-09 09:32:32,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:32,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450616676] [2021-11-09 09:32:32,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450616676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:32,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:32,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:32:32,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114973617] [2021-11-09 09:32:32,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:32:32,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:32,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:32:32,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:32:32,540 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-11-09 09:32:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:32,655 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2021-11-09 09:32:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:32:32,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) Word has length 53 [2021-11-09 09:32:32,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:32,660 INFO L225 Difference]: With dead ends: 676 [2021-11-09 09:32:32,660 INFO L226 Difference]: Without dead ends: 350 [2021-11-09 09:32:32,661 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:32:32,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-09 09:32:32,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2021-11-09 09:32:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.2867924528301886) internal successors, (341), 265 states have internal predecessors, (341), 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) [2021-11-09 09:32:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2021-11-09 09:32:32,699 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2021-11-09 09:32:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:32,702 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2021-11-09 09:32:32,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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) [2021-11-09 09:32:32,702 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2021-11-09 09:32:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-09 09:32:32,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:32,704 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 09:32:32,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 09:32:32,704 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1409435414, now seen corresponding path program 1 times [2021-11-09 09:32:32,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:32,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919576096] [2021-11-09 09:32:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:32,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-09 09:32:32,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:32,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919576096] [2021-11-09 09:32:32,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919576096] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:32,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:32,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:32,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613899323] [2021-11-09 09:32:32,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:32:32,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:32,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:32:32,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:32:32,808 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2021-11-09 09:32:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:32,949 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2021-11-09 09:32:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:32:32,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) Word has length 54 [2021-11-09 09:32:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:32,954 INFO L225 Difference]: With dead ends: 878 [2021-11-09 09:32:32,954 INFO L226 Difference]: Without dead ends: 666 [2021-11-09 09:32:32,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:32:32,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-11-09 09:32:33,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2021-11-09 09:32:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.2804428044280443) internal successors, (347), 271 states have internal predecessors, (347), 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) [2021-11-09 09:32:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2021-11-09 09:32:33,003 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2021-11-09 09:32:33,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:33,004 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2021-11-09 09:32:33,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2021-11-09 09:32:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2021-11-09 09:32:33,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-09 09:32:33,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:33,005 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 09:32:33,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 09:32:33,006 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:33,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1802462424, now seen corresponding path program 1 times [2021-11-09 09:32:33,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:33,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006269332] [2021-11-09 09:32:33,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:33,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:33,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-09 09:32:33,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:33,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006269332] [2021-11-09 09:32:33,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006269332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:33,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:33,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:33,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441473887] [2021-11-09 09:32:33,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:32:33,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:33,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:32:33,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:32:33,071 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2021-11-09 09:32:33,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:33,287 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2021-11-09 09:32:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:32:33,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) Word has length 54 [2021-11-09 09:32:33,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:33,292 INFO L225 Difference]: With dead ends: 708 [2021-11-09 09:32:33,292 INFO L226 Difference]: Without dead ends: 706 [2021-11-09 09:32:33,293 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:32:33,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-11-09 09:32:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2021-11-09 09:32:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.2730627306273063) internal successors, (345), 271 states have internal predecessors, (345), 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) [2021-11-09 09:32:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2021-11-09 09:32:33,337 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2021-11-09 09:32:33,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:33,338 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2021-11-09 09:32:33,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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) [2021-11-09 09:32:33,338 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2021-11-09 09:32:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 09:32:33,339 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:33,340 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-09 09:32:33,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 09:32:33,340 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1437514545, now seen corresponding path program 1 times [2021-11-09 09:32:33,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:33,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706606010] [2021-11-09 09:32:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:33,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:33,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:33,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706606010] [2021-11-09 09:32:33,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706606010] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:32:33,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732353730] [2021-11-09 09:32:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:33,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:32:33,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:32:33,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 09:32:33,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 09:32:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:33,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:32:33,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:32:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:33,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732353730] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 09:32:33,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 09:32:33,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-09 09:32:33,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636923804] [2021-11-09 09:32:33,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:32:33,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:33,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:32:33,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:32:33,846 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-11-09 09:32:34,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:34,143 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2021-11-09 09:32:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:32:34,144 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) Word has length 55 [2021-11-09 09:32:34,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:34,148 INFO L225 Difference]: With dead ends: 855 [2021-11-09 09:32:34,148 INFO L226 Difference]: Without dead ends: 637 [2021-11-09 09:32:34,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:32:34,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-11-09 09:32:34,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2021-11-09 09:32:34,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.2857142857142858) internal successors, (495), 385 states have internal predecessors, (495), 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) [2021-11-09 09:32:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2021-11-09 09:32:34,208 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2021-11-09 09:32:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:34,208 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2021-11-09 09:32:34,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2021-11-09 09:32:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2021-11-09 09:32:34,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-09 09:32:34,210 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:34,210 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-09 09:32:34,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:32:34,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 09:32:34,429 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:34,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:34,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1916895271, now seen corresponding path program 2 times [2021-11-09 09:32:34,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:34,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476122162] [2021-11-09 09:32:34,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:34,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-09 09:32:34,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:34,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476122162] [2021-11-09 09:32:34,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476122162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:34,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:34,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:34,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958812971] [2021-11-09 09:32:34,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:32:34,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:32:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:32:34,561 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-11-09 09:32:34,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:34,899 INFO L93 Difference]: Finished difference Result 1132 states and 1477 transitions. [2021-11-09 09:32:34,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:32:34,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) Word has length 76 [2021-11-09 09:32:34,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:34,905 INFO L225 Difference]: With dead ends: 1132 [2021-11-09 09:32:34,905 INFO L226 Difference]: Without dead ends: 798 [2021-11-09 09:32:34,906 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:32:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2021-11-09 09:32:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 532. [2021-11-09 09:32:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 1.2787193973634652) internal successors, (679), 531 states have internal predecessors, (679), 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) [2021-11-09 09:32:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2021-11-09 09:32:34,985 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2021-11-09 09:32:34,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:34,986 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2021-11-09 09:32:34,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2021-11-09 09:32:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2021-11-09 09:32:34,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-09 09:32:34,988 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:32:34,988 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-09 09:32:34,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 09:32:34,988 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:32:34,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:34,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2103312411, now seen corresponding path program 1 times [2021-11-09 09:32:34,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:34,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458153697] [2021-11-09 09:32:34,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:34,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:35,065 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-09 09:32:35,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:35,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458153697] [2021-11-09 09:32:35,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458153697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:35,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:35,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:32:35,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374881758] [2021-11-09 09:32:35,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 09:32:35,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:35,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 09:32:35,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-09 09:32:35,068 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2021-11-09 09:32:35,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:35,201 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2021-11-09 09:32:35,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 09:32:35,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) Word has length 76 [2021-11-09 09:32:35,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:32:35,202 INFO L225 Difference]: With dead ends: 934 [2021-11-09 09:32:35,202 INFO L226 Difference]: Without dead ends: 0 [2021-11-09 09:32:35,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:32:35,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-09 09:32:35,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-09 09:32:35,204 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) [2021-11-09 09:32:35,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 09:32:35,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-11-09 09:32:35,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:32:35,205 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:32:35,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2021-11-09 09:32:35,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:32:35,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-09 09:32:35,208 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:32:35,208 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:32:35,208 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:32:35,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-09 09:32:35,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-09 09:32:35,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:35,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:36,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:37,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:37,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:37,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:37,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:38,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:39,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:39,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:39,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:39,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:39,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:39,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:32:47,779 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 979) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 337) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L333-2(lines 333 337) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L333-3(lines 333 337) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L168(lines 168 185) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L333-5(lines 333 337) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 168 185) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L333-6(lines 333 337) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L168-2(lines 168 185) no Hoare annotation was computed. [2021-11-09 09:32:47,780 INFO L857 garLoopResultBuilder]: For program point L168-3(lines 168 185) no Hoare annotation was computed. [2021-11-09 09:32:47,781 INFO L857 garLoopResultBuilder]: For program point L333-8(lines 333 337) no Hoare annotation was computed. [2021-11-09 09:32:47,781 INFO L857 garLoopResultBuilder]: For program point L168-4(lines 168 185) no Hoare annotation was computed. [2021-11-09 09:32:47,781 INFO L857 garLoopResultBuilder]: For program point L168-5(lines 168 185) no Hoare annotation was computed. [2021-11-09 09:32:47,781 INFO L853 garLoopResultBuilder]: At program point L136(lines 135 154) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_activatePump_~tmp~3 0) .cse2 .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse4 .cse2 .cse3 (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1)) (and .cse0 .cse4 .cse1 (<= 2 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) .cse3))) [2021-11-09 09:32:47,782 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 142) no Hoare annotation was computed. [2021-11-09 09:32:47,782 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 135 154) the Hoare annotation is: false [2021-11-09 09:32:47,782 INFO L853 garLoopResultBuilder]: At program point L136-3(lines 135 154) the Hoare annotation is: false [2021-11-09 09:32:47,782 INFO L853 garLoopResultBuilder]: At program point L500(lines 1 982) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-09 09:32:47,782 INFO L857 garLoopResultBuilder]: For program point L402(lines 402 406) no Hoare annotation was computed. [2021-11-09 09:32:47,782 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 180) no Hoare annotation was computed. [2021-11-09 09:32:47,783 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 172 180) no Hoare annotation was computed. [2021-11-09 09:32:47,783 INFO L857 garLoopResultBuilder]: For program point L172-2(lines 172 180) no Hoare annotation was computed. [2021-11-09 09:32:47,783 INFO L857 garLoopResultBuilder]: For program point L172-3(lines 172 180) no Hoare annotation was computed. [2021-11-09 09:32:47,783 INFO L857 garLoopResultBuilder]: For program point L172-4(lines 172 180) no Hoare annotation was computed. [2021-11-09 09:32:47,783 INFO L857 garLoopResultBuilder]: For program point L172-5(lines 172 180) no Hoare annotation was computed. [2021-11-09 09:32:47,784 INFO L853 garLoopResultBuilder]: At program point L470(lines 465 473) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_activatePump_~tmp~3 0) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2021-11-09 09:32:47,784 INFO L853 garLoopResultBuilder]: At program point L470-1(lines 465 473) the Hoare annotation is: false [2021-11-09 09:32:47,784 INFO L853 garLoopResultBuilder]: At program point L470-2(lines 465 473) the Hoare annotation is: false [2021-11-09 09:32:47,784 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 80) no Hoare annotation was computed. [2021-11-09 09:32:47,784 INFO L853 garLoopResultBuilder]: At program point L74-1(lines 74 80) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse7 (<= 1 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse6 (= ULTIMATE.start_main_~tmp~7 ~systemActive~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse6 .cse4 .cse7 .cse5 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ~methaneLevelCritical~0 0) .cse3 .cse4 .cse7) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) .cse2 .cse6 .cse4 .cse5))) [2021-11-09 09:32:47,786 INFO L853 garLoopResultBuilder]: At program point L339(lines 324 342) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0)) [2021-11-09 09:32:47,787 INFO L853 garLoopResultBuilder]: At program point L339-1(lines 324 342) the Hoare annotation is: false [2021-11-09 09:32:47,787 INFO L853 garLoopResultBuilder]: At program point L339-2(lines 324 342) the Hoare annotation is: false [2021-11-09 09:32:47,787 INFO L860 garLoopResultBuilder]: At program point L604(lines 585 607) the Hoare annotation is: true [2021-11-09 09:32:47,787 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 979) no Hoare annotation was computed. [2021-11-09 09:32:47,787 INFO L853 garLoopResultBuilder]: At program point L572(lines 568 574) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1)) [2021-11-09 09:32:47,787 INFO L853 garLoopResultBuilder]: At program point L143(lines 143 149) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))))) [2021-11-09 09:32:47,788 INFO L853 garLoopResultBuilder]: At program point L110(lines 63 111) the Hoare annotation is: false [2021-11-09 09:32:47,788 INFO L853 garLoopResultBuilder]: At program point L143-1(lines 143 149) the Hoare annotation is: false [2021-11-09 09:32:47,788 INFO L853 garLoopResultBuilder]: At program point L143-2(lines 143 149) the Hoare annotation is: false [2021-11-09 09:32:47,788 INFO L853 garLoopResultBuilder]: At program point L508(lines 503 511) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1)) [2021-11-09 09:32:47,788 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2021-11-09 09:32:47,788 INFO L857 garLoopResultBuilder]: For program point L378-3(lines 378 382) no Hoare annotation was computed. [2021-11-09 09:32:47,788 INFO L857 garLoopResultBuilder]: For program point L378-6(lines 378 382) no Hoare annotation was computed. [2021-11-09 09:32:47,789 INFO L857 garLoopResultBuilder]: For program point L314(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,789 INFO L857 garLoopResultBuilder]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,789 INFO L857 garLoopResultBuilder]: For program point L314-3(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,789 INFO L857 garLoopResultBuilder]: For program point L314-5(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,789 INFO L857 garLoopResultBuilder]: For program point L314-6(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,789 INFO L857 garLoopResultBuilder]: For program point L314-8(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,790 INFO L857 garLoopResultBuilder]: For program point L314-9(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,790 INFO L857 garLoopResultBuilder]: For program point L314-11(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,790 INFO L857 garLoopResultBuilder]: For program point L314-12(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,790 INFO L857 garLoopResultBuilder]: For program point L314-14(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,790 INFO L857 garLoopResultBuilder]: For program point L314-15(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,790 INFO L857 garLoopResultBuilder]: For program point L314-17(lines 314 318) no Hoare annotation was computed. [2021-11-09 09:32:47,791 INFO L853 garLoopResultBuilder]: At program point L447(lines 442 450) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~7 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) .cse1 .cse2 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) .cse3 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))))) [2021-11-09 09:32:47,791 INFO L853 garLoopResultBuilder]: At program point L447-1(lines 442 450) the Hoare annotation is: false [2021-11-09 09:32:47,791 INFO L853 garLoopResultBuilder]: At program point L447-2(lines 442 450) the Hoare annotation is: false [2021-11-09 09:32:47,791 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2021-11-09 09:32:47,791 INFO L853 garLoopResultBuilder]: At program point L84-1(lines 84 90) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 ~systemActive~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 1) .cse4 (= ~waterLevel~0 1)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) .cse2 .cse3 .cse4 .cse5))) [2021-11-09 09:32:47,792 INFO L853 garLoopResultBuilder]: At program point L415(lines 410 418) the Hoare annotation is: false [2021-11-09 09:32:47,792 INFO L853 garLoopResultBuilder]: At program point L415-1(lines 410 418) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))) [2021-11-09 09:32:47,792 INFO L853 garLoopResultBuilder]: At program point L415-2(lines 410 418) the Hoare annotation is: false [2021-11-09 09:32:47,792 INFO L853 garLoopResultBuilder]: At program point L415-3(lines 410 418) the Hoare annotation is: false [2021-11-09 09:32:47,792 INFO L853 garLoopResultBuilder]: At program point L415-4(lines 410 418) the Hoare annotation is: false [2021-11-09 09:32:47,792 INFO L853 garLoopResultBuilder]: At program point L415-5(lines 410 418) the Hoare annotation is: false [2021-11-09 09:32:47,793 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-09 09:32:47,793 INFO L857 garLoopResultBuilder]: For program point L979(line 979) no Hoare annotation was computed. [2021-11-09 09:32:47,793 INFO L857 garLoopResultBuilder]: For program point L979-1(line 979) no Hoare annotation was computed. [2021-11-09 09:32:47,793 INFO L857 garLoopResultBuilder]: For program point L979-2(line 979) no Hoare annotation was computed. [2021-11-09 09:32:47,793 INFO L853 garLoopResultBuilder]: At program point L320(lines 305 323) the Hoare annotation is: false [2021-11-09 09:32:47,793 INFO L853 garLoopResultBuilder]: At program point L320-1(lines 305 323) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse6 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0)) (.cse0 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0))) (or (and (not .cse0) .cse1 .cse2 .cse3 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) .cse4 (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) (not .cse5) .cse6 (<= 1 ~waterLevel~0)) (and .cse1 .cse3 (<= 2 ~waterLevel~0) (not .cse4) (= ULTIMATE.start_main_~tmp~7 1) .cse6 (not .cse2) (= |ULTIMATE.start_valid_product_#res| 1) .cse5 .cse0))) [2021-11-09 09:32:47,794 INFO L853 garLoopResultBuilder]: At program point L320-2(lines 305 323) the Hoare annotation is: false [2021-11-09 09:32:47,794 INFO L853 garLoopResultBuilder]: At program point L320-3(lines 305 323) the Hoare annotation is: false [2021-11-09 09:32:47,794 INFO L853 garLoopResultBuilder]: At program point L320-4(lines 305 323) the Hoare annotation is: false [2021-11-09 09:32:47,794 INFO L853 garLoopResultBuilder]: At program point L320-5(lines 305 323) the Hoare annotation is: false [2021-11-09 09:32:47,794 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 367) no Hoare annotation was computed. [2021-11-09 09:32:47,795 INFO L853 garLoopResultBuilder]: At program point L354-1(lines 1 982) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0) .cse4 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) .cse2 .cse3 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) .cse4 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))))) [2021-11-09 09:32:47,795 INFO L857 garLoopResultBuilder]: For program point L354-2(lines 354 367) no Hoare annotation was computed. [2021-11-09 09:32:47,795 INFO L853 garLoopResultBuilder]: At program point L354-3(lines 1 982) the Hoare annotation is: false [2021-11-09 09:32:47,795 INFO L857 garLoopResultBuilder]: For program point L354-4(lines 354 367) no Hoare annotation was computed. [2021-11-09 09:32:47,795 INFO L853 garLoopResultBuilder]: At program point L354-5(lines 1 982) the Hoare annotation is: false [2021-11-09 09:32:47,795 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-09 09:32:47,796 INFO L853 garLoopResultBuilder]: At program point L256(lines 249 259) the Hoare annotation is: false [2021-11-09 09:32:47,796 INFO L853 garLoopResultBuilder]: At program point L256-1(lines 249 259) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))) [2021-11-09 09:32:47,796 INFO L853 garLoopResultBuilder]: At program point L256-2(lines 249 259) the Hoare annotation is: false [2021-11-09 09:32:47,796 INFO L853 garLoopResultBuilder]: At program point L256-3(lines 249 259) the Hoare annotation is: false [2021-11-09 09:32:47,796 INFO L853 garLoopResultBuilder]: At program point L256-4(lines 249 259) the Hoare annotation is: false [2021-11-09 09:32:47,796 INFO L853 garLoopResultBuilder]: At program point L256-5(lines 249 259) the Hoare annotation is: false [2021-11-09 09:32:47,797 INFO L857 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2021-11-09 09:32:47,797 INFO L857 garLoopResultBuilder]: For program point L455-1(lines 455 461) no Hoare annotation was computed. [2021-11-09 09:32:47,797 INFO L857 garLoopResultBuilder]: For program point L455-2(lines 455 461) no Hoare annotation was computed. [2021-11-09 09:32:47,797 INFO L857 garLoopResultBuilder]: For program point L455-3(lines 455 461) no Hoare annotation was computed. [2021-11-09 09:32:47,797 INFO L857 garLoopResultBuilder]: For program point L455-4(lines 455 461) no Hoare annotation was computed. [2021-11-09 09:32:47,797 INFO L857 garLoopResultBuilder]: For program point L455-5(lines 455 461) no Hoare annotation was computed. [2021-11-09 09:32:47,798 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 394) no Hoare annotation was computed. [2021-11-09 09:32:47,798 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2021-11-09 09:32:47,798 INFO L857 garLoopResultBuilder]: For program point L358-2(lines 358 364) no Hoare annotation was computed. [2021-11-09 09:32:47,798 INFO L857 garLoopResultBuilder]: For program point L358-4(lines 358 364) no Hoare annotation was computed. [2021-11-09 09:32:47,798 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 105) no Hoare annotation was computed. [2021-11-09 09:32:47,798 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-09 09:32:47,799 INFO L853 garLoopResultBuilder]: At program point L524-2(lines 524 538) the Hoare annotation is: false [2021-11-09 09:32:47,799 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2021-11-09 09:32:47,799 INFO L857 garLoopResultBuilder]: For program point L194-1(lines 194 211) no Hoare annotation was computed. [2021-11-09 09:32:47,799 INFO L857 garLoopResultBuilder]: For program point L194-2(lines 194 211) no Hoare annotation was computed. [2021-11-09 09:32:47,799 INFO L857 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-09 09:32:47,799 INFO L853 garLoopResultBuilder]: At program point L460(lines 451 464) the Hoare annotation is: false [2021-11-09 09:32:47,800 INFO L853 garLoopResultBuilder]: At program point L460-1(lines 451 464) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 1) .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) .cse2 (= |ULTIMATE.start_valid_product_#res| 1)))) [2021-11-09 09:32:47,800 INFO L853 garLoopResultBuilder]: At program point L460-2(lines 451 464) the Hoare annotation is: false [2021-11-09 09:32:47,800 INFO L853 garLoopResultBuilder]: At program point L460-3(lines 451 464) the Hoare annotation is: false [2021-11-09 09:32:47,800 INFO L853 garLoopResultBuilder]: At program point L460-4(lines 451 464) the Hoare annotation is: false [2021-11-09 09:32:47,800 INFO L853 garLoopResultBuilder]: At program point L460-5(lines 451 464) the Hoare annotation is: false [2021-11-09 09:32:47,800 INFO L857 garLoopResultBuilder]: For program point L65(lines 64 109) no Hoare annotation was computed. [2021-11-09 09:32:47,801 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-09 09:32:47,801 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 979) no Hoare annotation was computed. [2021-11-09 09:32:47,801 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2021-11-09 09:32:47,801 INFO L857 garLoopResultBuilder]: For program point L528-1(lines 136 142) no Hoare annotation was computed. [2021-11-09 09:32:47,801 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 237) no Hoare annotation was computed. [2021-11-09 09:32:47,801 INFO L857 garLoopResultBuilder]: For program point L198(lines 198 206) no Hoare annotation was computed. [2021-11-09 09:32:47,802 INFO L857 garLoopResultBuilder]: For program point L231-2(lines 231 237) no Hoare annotation was computed. [2021-11-09 09:32:47,802 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 198 206) no Hoare annotation was computed. [2021-11-09 09:32:47,802 INFO L857 garLoopResultBuilder]: For program point L198-2(lines 198 206) no Hoare annotation was computed. [2021-11-09 09:32:47,802 INFO L857 garLoopResultBuilder]: For program point L231-4(lines 231 237) no Hoare annotation was computed. [2021-11-09 09:32:47,802 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-09 09:32:47,802 INFO L857 garLoopResultBuilder]: For program point L231-6(lines 231 237) no Hoare annotation was computed. [2021-11-09 09:32:47,803 INFO L857 garLoopResultBuilder]: For program point L231-8(lines 231 237) no Hoare annotation was computed. [2021-11-09 09:32:47,803 INFO L857 garLoopResultBuilder]: For program point L231-10(lines 231 237) no Hoare annotation was computed. [2021-11-09 09:32:47,803 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 602) no Hoare annotation was computed. [2021-11-09 09:32:47,803 INFO L860 garLoopResultBuilder]: At program point L595-1(lines 595 602) the Hoare annotation is: true [2021-11-09 09:32:47,803 INFO L853 garLoopResultBuilder]: At program point L265(lines 260 268) the Hoare annotation is: false [2021-11-09 09:32:47,803 INFO L853 garLoopResultBuilder]: At program point L265-1(lines 260 268) the Hoare annotation is: false [2021-11-09 09:32:47,804 INFO L853 garLoopResultBuilder]: At program point L265-2(lines 260 268) the Hoare annotation is: false [2021-11-09 09:32:47,804 INFO L857 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2021-11-09 09:32:47,804 INFO L857 garLoopResultBuilder]: For program point L100-2(lines 136 142) no Hoare annotation was computed. [2021-11-09 09:32:47,807 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:32:47,809 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:32:47,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:32:47 BoogieIcfgContainer [2021-11-09 09:32:47,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 09:32:47,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:32:47,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:32:47,883 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:32:47,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:32:28" (3/4) ... [2021-11-09 09:32:47,887 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-09 09:32:47,919 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-09 09:32:47,921 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-09 09:32:47,922 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-09 09:32:47,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-09 09:32:47,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-09 09:32:47,927 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 09:32:47,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 09:32:47,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == 1) && waterLevel == 1 [2021-11-09 09:32:47,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1 [2021-11-09 09:32:47,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result) || ((((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || ((((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && 2 <= tmp) && !(tmp == 0)) [2021-11-09 09:32:47,956 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 1) && 1 == systemActive) && \result == 1) || (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) [2021-11-09 09:32:47,956 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && waterLevel == 1)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) [2021-11-09 09:32:47,957 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && \result == systemActive) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) [2021-11-09 09:32:47,957 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) || ((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0)) [2021-11-09 09:32:47,959 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && !(tmp == 0)) [2021-11-09 09:32:47,960 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && \result == systemActive) && \result == 0) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel [2021-11-09 09:32:47,960 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) [2021-11-09 09:32:47,961 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0 && \result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && tmp == 0 [2021-11-09 09:32:47,962 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == systemActive) && \result == 0) && tmp == systemActive) && !(tmp == 0)) && 1 == systemActive) && 1 <= waterLevel) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) [2021-11-09 09:32:47,964 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) [2021-11-09 09:32:47,965 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) [2021-11-09 09:32:48,033 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:32:48,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:32:48,037 INFO L168 Benchmark]: Toolchain (without parser) took 21250.83 ms. Allocated memory was 94.4 MB in the beginning and 243.3 MB in the end (delta: 148.9 MB). Free memory was 60.0 MB in the beginning and 126.3 MB in the end (delta: -66.3 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:32:48,037 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 67.5 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:32:48,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.44 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 61.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:32:48,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.35 ms. Allocated memory is still 94.4 MB. Free memory was 61.3 MB in the beginning and 57.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:32:48,039 INFO L168 Benchmark]: Boogie Preprocessor took 102.89 ms. Allocated memory is still 94.4 MB. Free memory was 57.2 MB in the beginning and 54.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:32:48,040 INFO L168 Benchmark]: RCFGBuilder took 1210.94 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 74.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:32:48,040 INFO L168 Benchmark]: TraceAbstraction took 18987.68 ms. Allocated memory was 121.6 MB in the beginning and 243.3 MB in the end (delta: 121.6 MB). Free memory was 73.5 MB in the beginning and 137.8 MB in the end (delta: -64.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:32:48,041 INFO L168 Benchmark]: Witness Printer took 152.40 ms. Allocated memory is still 243.3 MB. Free memory was 137.8 MB in the beginning and 126.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:32:48,043 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 67.5 MB in the end (delta: 27.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 677.44 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 61.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.35 ms. Allocated memory is still 94.4 MB. Free memory was 61.3 MB in the beginning and 57.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.89 ms. Allocated memory is still 94.4 MB. Free memory was 57.2 MB in the beginning and 54.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1210.94 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 54.3 MB in the beginning and 74.1 MB in the end (delta: -19.8 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18987.68 ms. Allocated memory was 121.6 MB in the beginning and 243.3 MB in the end (delta: 121.6 MB). Free memory was 73.5 MB in the beginning and 137.8 MB in the end (delta: -64.3 MB). Peak memory consumption was 126.3 MB. Max. memory is 16.1 GB. * Witness Printer took 152.40 ms. Allocated memory is still 243.3 MB. Free memory was 137.8 MB in the beginning and 126.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * 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: 979]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 979]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 979]: 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 1 procedures, 135 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 18.8s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1964 SDtfs, 3445 SDslu, 3238 SDs, 0 SdLazy, 475 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 2615 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 54 PreInvPairs, 196 NumberOfFragments, 739 HoareAnnotationTreeSize, 54 FomulaSimplifications, 27978733 FormulaSimplificationTreeSizeReduction, 4.2s HoareSimplificationTime, 54 FomulaSimplificationsInter, 9047681 FormulaSimplificationTreeSizeReductionInter, 8.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 746 NumberOfCodeBlocks, 746 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 728 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209 SizeOfPredicates, 3 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 176/182 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 3 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: ((((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && \result == systemActive) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: (((((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == systemActive) && \result == 0) && tmp == systemActive) && !(tmp == 0)) && 1 == systemActive) && 1 <= waterLevel) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && !(tmp == 0)) - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == 1) && waterLevel == 1 - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 1) && 1 == systemActive) && \result == 1) || (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) || ((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0)) - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1 - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && \result == systemActive) && \result == 0) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result) || ((((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || ((((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && 2 <= tmp) && !(tmp == 0)) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && waterLevel == 1)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0 && \result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && tmp == 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) RESULT: Ultimate proved your program to be correct! [2021-11-09 09:32:48,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_709bd437-86d1-4472-8fb8-703e7aa17809/bin/uautomizer-IVEQpCNsaX/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