./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD --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 e4fc698cb41b54b4c4983dda7de32b2f9c78701d9e96fbbf9a36472a5bdbde25 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:54:08,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:54:08,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:54:08,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:54:08,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:54:08,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:54:08,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:54:08,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:54:08,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:54:08,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:54:08,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:54:08,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:54:08,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:54:08,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:54:08,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:54:08,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:54:08,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:54:08,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:54:08,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:54:08,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:54:08,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:54:08,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:54:08,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:54:08,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:54:08,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:54:08,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:54:08,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:54:08,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:54:08,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:54:08,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:54:08,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:54:08,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:54:08,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:54:08,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:54:08,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:54:08,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:54:08,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:54:08,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:54:08,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:54:08,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:54:08,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:54:08,491 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:54:08,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:54:08,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:54:08,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:54:08,543 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:54:08,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:54:08,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:54:08,552 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:54:08,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:54:08,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:54:08,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:54:08,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:54:08,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:54:08,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:54:08,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:54:08,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:54:08,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:54:08,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:54:08,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:54:08,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:54:08,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:54:08,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:54:08,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:54:08,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:54:08,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:54:08,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:54:08,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:54:08,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:54:08,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:54:08,558 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:54:08,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:54:08,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:54:08,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:54:08,562 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_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4fc698cb41b54b4c4983dda7de32b2f9c78701d9e96fbbf9a36472a5bdbde25 [2021-10-28 23:54:08,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:54:08,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:54:08,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:54:08,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:54:08,962 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:54:08,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2021-10-28 23:54:09,027 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/data/e1a75306e/366547c326844eb286dbcb0edf4c4e29/FLAGfc7b3afed [2021-10-28 23:54:09,696 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:54:09,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c [2021-10-28 23:54:09,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/data/e1a75306e/366547c326844eb286dbcb0edf4c4e29/FLAGfc7b3afed [2021-10-28 23:54:09,925 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/data/e1a75306e/366547c326844eb286dbcb0edf4c4e29 [2021-10-28 23:54:09,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:54:09,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:54:09,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:09,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:54:09,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:54:09,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:09" (1/1) ... [2021-10-28 23:54:09,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bb9e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:09, skipping insertion in model container [2021-10-28 23:54:09,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:54:09" (1/1) ... [2021-10-28 23:54:09,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:54:10,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:54:10,402 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_44328707-9321-4ecd-8432-35ed1f42953c/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c[18431,18444] [2021-10-28 23:54:10,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:10,418 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:54:10,498 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_44328707-9321-4ecd-8432-35ed1f42953c/sv-benchmarks/c/product-lines/minepump_spec4_product52.cil.c[18431,18444] [2021-10-28 23:54:10,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:54:10,521 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:54:10,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10 WrapperNode [2021-10-28 23:54:10,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:54:10,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:54:10,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:54:10,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:54:10,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:54:10,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:54:10,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:54:10,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:54:10,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:54:10,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:54:10,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:54:10,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:54:10,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (1/1) ... [2021-10-28 23:54:10,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:54:10,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:54:10,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:54:10,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:54:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:54:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:54:10,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:54:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:54:11,845 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:54:11,845 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-28 23:54:11,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:11 BoogieIcfgContainer [2021-10-28 23:54:11,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:54:11,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:54:11,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:54:11,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:54:11,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:54:09" (1/3) ... [2021-10-28 23:54:11,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25023671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:54:11, skipping insertion in model container [2021-10-28 23:54:11,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:54:10" (2/3) ... [2021-10-28 23:54:11,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25023671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:54:11, skipping insertion in model container [2021-10-28 23:54:11,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:11" (3/3) ... [2021-10-28 23:54:11,862 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2021-10-28 23:54:11,874 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:54:11,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:54:11,929 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:54:11,937 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 [2021-10-28 23:54:11,937 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:54:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-28 23:54:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:54:11,966 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:11,966 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:11,967 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:11,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1794729554, now seen corresponding path program 1 times [2021-10-28 23:54:11,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:11,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057707673] [2021-10-28 23:54:11,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:11,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:12,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:12,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057707673] [2021-10-28 23:54:12,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057707673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:12,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:12,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:54:12,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915524304] [2021-10-28 23:54:12,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:54:12,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:12,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:54:12,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:54:12,290 INFO L87 Difference]: Start difference. First operand has 119 states, 115 states have (on average 1.565217391304348) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-28 23:54:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:12,325 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2021-10-28 23:54:12,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:54:12,327 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 [2021-10-28 23:54:12,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:12,339 INFO L225 Difference]: With dead ends: 232 [2021-10-28 23:54:12,339 INFO L226 Difference]: Without dead ends: 115 [2021-10-28 23:54:12,343 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 [2021-10-28 23:54:12,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-10-28 23:54:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-10-28 23:54:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 112 states have (on average 1.5) internal successors, (168), 114 states have internal predecessors, (168), 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) [2021-10-28 23:54:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2021-10-28 23:54:12,392 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2021-10-28 23:54:12,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:12,393 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2021-10-28 23:54:12,393 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) [2021-10-28 23:54:12,393 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2021-10-28 23:54:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 23:54:12,395 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:12,395 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:12,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:54:12,395 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:12,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash 529368141, now seen corresponding path program 1 times [2021-10-28 23:54:12,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:12,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656757510] [2021-10-28 23:54:12,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:12,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:12,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:12,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656757510] [2021-10-28 23:54:12,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656757510] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:12,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:12,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:54:12,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964842041] [2021-10-28 23:54:12,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:54:12,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:12,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:54:12,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:54:12,622 INFO L87 Difference]: Start difference. First operand 115 states and 168 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) [2021-10-28 23:54:12,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:12,636 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2021-10-28 23:54:12,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:54:12,643 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 [2021-10-28 23:54:12,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:12,644 INFO L225 Difference]: With dead ends: 115 [2021-10-28 23:54:12,644 INFO L226 Difference]: Without dead ends: 49 [2021-10-28 23:54:12,646 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 [2021-10-28 23:54:12,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-28 23:54:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-28 23:54:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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) [2021-10-28 23:54:12,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-28 23:54:12,656 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2021-10-28 23:54:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:12,657 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-28 23:54:12,657 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) [2021-10-28 23:54:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-28 23:54:12,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:54:12,661 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:12,661 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] [2021-10-28 23:54:12,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:54:12,663 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:12,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:12,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2061312917, now seen corresponding path program 1 times [2021-10-28 23:54:12,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:12,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284164019] [2021-10-28 23:54:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:12,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:12,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:12,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:12,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284164019] [2021-10-28 23:54:12,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284164019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:12,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:12,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:54:12,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300970368] [2021-10-28 23:54:12,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:54:12,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:12,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:54:12,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:54:12,836 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 5 states, 5 states have (on average 4.4) 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) [2021-10-28 23:54:12,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:12,952 INFO L93 Difference]: Finished difference Result 115 states and 170 transitions. [2021-10-28 23:54:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:54:12,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) 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 [2021-10-28 23:54:12,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:12,955 INFO L225 Difference]: With dead ends: 115 [2021-10-28 23:54:12,955 INFO L226 Difference]: Without dead ends: 72 [2021-10-28 23:54:12,962 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:54:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-28 23:54:12,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-10-28 23:54:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.492537313432836) internal successors, (100), 67 states have internal predecessors, (100), 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) [2021-10-28 23:54:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2021-10-28 23:54:12,993 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2021-10-28 23:54:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:12,994 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2021-10-28 23:54:12,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) 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) [2021-10-28 23:54:12,994 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2021-10-28 23:54:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 23:54:13,008 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:13,009 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] [2021-10-28 23:54:13,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:54:13,010 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1499976397, now seen corresponding path program 1 times [2021-10-28 23:54:13,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:13,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357828827] [2021-10-28 23:54:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:13,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:13,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:13,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357828827] [2021-10-28 23:54:13,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357828827] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:13,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:13,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:54:13,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473663954] [2021-10-28 23:54:13,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 23:54:13,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:13,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:54:13,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:54:13,102 INFO L87 Difference]: Start difference. First operand 68 states and 100 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) [2021-10-28 23:54:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:13,140 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2021-10-28 23:54:13,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:54:13,140 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 [2021-10-28 23:54:13,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:13,142 INFO L225 Difference]: With dead ends: 151 [2021-10-28 23:54:13,142 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 23:54:13,143 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 [2021-10-28 23:54:13,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 23:54:13,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2021-10-28 23:54:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 86 states have (on average 1.441860465116279) internal successors, (124), 86 states have internal predecessors, (124), 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) [2021-10-28 23:54:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2021-10-28 23:54:13,181 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2021-10-28 23:54:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:13,182 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2021-10-28 23:54:13,182 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) [2021-10-28 23:54:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2021-10-28 23:54:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:54:13,183 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:13,183 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] [2021-10-28 23:54:13,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:54:13,184 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:13,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:13,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2021-10-28 23:54:13,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:13,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172304745] [2021-10-28 23:54:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:13,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:13,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:13,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172304745] [2021-10-28 23:54:13,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172304745] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:13,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:13,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:54:13,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736036374] [2021-10-28 23:54:13,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:54:13,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:13,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:54:13,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:54:13,312 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 23:54:13,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:13,466 INFO L93 Difference]: Finished difference Result 307 states and 445 transitions. [2021-10-28 23:54:13,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:54:13,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2021-10-28 23:54:13,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:13,475 INFO L225 Difference]: With dead ends: 307 [2021-10-28 23:54:13,475 INFO L226 Difference]: Without dead ends: 226 [2021-10-28 23:54:13,477 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 [2021-10-28 23:54:13,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-28 23:54:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 146. [2021-10-28 23:54:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4) internal successors, (203), 145 states have internal predecessors, (203), 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) [2021-10-28 23:54:13,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 203 transitions. [2021-10-28 23:54:13,534 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 203 transitions. Word has length 25 [2021-10-28 23:54:13,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:13,535 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 203 transitions. [2021-10-28 23:54:13,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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) [2021-10-28 23:54:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 203 transitions. [2021-10-28 23:54:13,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:54:13,539 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:13,539 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] [2021-10-28 23:54:13,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:54:13,540 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash -280430142, now seen corresponding path program 1 times [2021-10-28 23:54:13,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:13,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121470096] [2021-10-28 23:54:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:13,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:13,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:13,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121470096] [2021-10-28 23:54:13,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121470096] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:13,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:13,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:54:13,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753561626] [2021-10-28 23:54:13,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:54:13,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:54:13,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:54:13,666 INFO L87 Difference]: Start difference. First operand 146 states and 203 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 23:54:13,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:13,809 INFO L93 Difference]: Finished difference Result 303 states and 430 transitions. [2021-10-28 23:54:13,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:54:13,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2021-10-28 23:54:13,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:13,818 INFO L225 Difference]: With dead ends: 303 [2021-10-28 23:54:13,819 INFO L226 Difference]: Without dead ends: 301 [2021-10-28 23:54:13,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:54:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-28 23:54:13,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 146. [2021-10-28 23:54:13,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3862068965517242) internal successors, (201), 145 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) [2021-10-28 23:54:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 201 transitions. [2021-10-28 23:54:13,849 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 201 transitions. Word has length 26 [2021-10-28 23:54:13,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:13,850 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 201 transitions. [2021-10-28 23:54:13,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2021-10-28 23:54:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 201 transitions. [2021-10-28 23:54:13,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:54:13,856 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:13,856 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] [2021-10-28 23:54:13,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:54:13,857 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:13,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1932951004, now seen corresponding path program 1 times [2021-10-28 23:54:13,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:13,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612759052] [2021-10-28 23:54:13,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:13,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:13,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:13,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612759052] [2021-10-28 23:54:13,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612759052] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:13,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:13,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:54:13,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258781404] [2021-10-28 23:54:13,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:54:13,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:13,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:54:13,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:54:13,951 INFO L87 Difference]: Start difference. First operand 146 states and 201 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) [2021-10-28 23:54:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:14,105 INFO L93 Difference]: Finished difference Result 299 states and 419 transitions. [2021-10-28 23:54:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:54:14,106 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 [2021-10-28 23:54:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:14,108 INFO L225 Difference]: With dead ends: 299 [2021-10-28 23:54:14,108 INFO L226 Difference]: Without dead ends: 218 [2021-10-28 23:54:14,111 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 [2021-10-28 23:54:14,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-10-28 23:54:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2021-10-28 23:54:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.3831775700934579) internal successors, (296), 214 states have internal predecessors, (296), 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) [2021-10-28 23:54:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 296 transitions. [2021-10-28 23:54:14,141 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 296 transitions. Word has length 31 [2021-10-28 23:54:14,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:14,143 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 296 transitions. [2021-10-28 23:54:14,144 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) [2021-10-28 23:54:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 296 transitions. [2021-10-28 23:54:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:54:14,150 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:14,150 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] [2021-10-28 23:54:14,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 23:54:14,150 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2103850854, now seen corresponding path program 1 times [2021-10-28 23:54:14,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:14,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297290936] [2021-10-28 23:54:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:14,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:14,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:14,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297290936] [2021-10-28 23:54:14,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297290936] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:14,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:14,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:54:14,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036527093] [2021-10-28 23:54:14,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:54:14,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:14,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:54:14,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:54:14,236 INFO L87 Difference]: Start difference. First operand 215 states and 296 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) [2021-10-28 23:54:14,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:14,307 INFO L93 Difference]: Finished difference Result 643 states and 898 transitions. [2021-10-28 23:54:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:54:14,308 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 [2021-10-28 23:54:14,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:14,311 INFO L225 Difference]: With dead ends: 643 [2021-10-28 23:54:14,312 INFO L226 Difference]: Without dead ends: 492 [2021-10-28 23:54:14,313 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 [2021-10-28 23:54:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-10-28 23:54:14,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 215. [2021-10-28 23:54:14,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.3738317757009346) internal successors, (294), 214 states have internal predecessors, (294), 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) [2021-10-28 23:54:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 294 transitions. [2021-10-28 23:54:14,340 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 294 transitions. Word has length 31 [2021-10-28 23:54:14,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:14,341 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 294 transitions. [2021-10-28 23:54:14,341 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) [2021-10-28 23:54:14,341 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 294 transitions. [2021-10-28 23:54:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-28 23:54:14,342 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:14,342 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] [2021-10-28 23:54:14,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 23:54:14,342 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:14,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:14,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1798089432, now seen corresponding path program 1 times [2021-10-28 23:54:14,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:14,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608070999] [2021-10-28 23:54:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:14,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:14,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:14,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608070999] [2021-10-28 23:54:14,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608070999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:14,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:14,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:54:14,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942595859] [2021-10-28 23:54:14,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:54:14,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:54:14,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:54:14,458 INFO L87 Difference]: Start difference. First operand 215 states and 294 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 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) [2021-10-28 23:54:14,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:14,660 INFO L93 Difference]: Finished difference Result 466 states and 647 transitions. [2021-10-28 23:54:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:54:14,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 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 [2021-10-28 23:54:14,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:14,664 INFO L225 Difference]: With dead ends: 466 [2021-10-28 23:54:14,664 INFO L226 Difference]: Without dead ends: 315 [2021-10-28 23:54:14,665 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 [2021-10-28 23:54:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-10-28 23:54:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 241. [2021-10-28 23:54:14,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.3833333333333333) internal successors, (332), 240 states have internal predecessors, (332), 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) [2021-10-28 23:54:14,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 332 transitions. [2021-10-28 23:54:14,700 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 332 transitions. Word has length 31 [2021-10-28 23:54:14,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:14,701 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 332 transitions. [2021-10-28 23:54:14,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 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) [2021-10-28 23:54:14,701 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 332 transitions. [2021-10-28 23:54:14,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:54:14,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:14,703 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] [2021-10-28 23:54:14,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 23:54:14,703 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:14,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1425513119, now seen corresponding path program 1 times [2021-10-28 23:54:14,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:14,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414208237] [2021-10-28 23:54:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:14,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:54:14,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:14,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414208237] [2021-10-28 23:54:14,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414208237] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:14,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:14,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:54:14,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535548783] [2021-10-28 23:54:14,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:54:14,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:14,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:54:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:54:14,771 INFO L87 Difference]: Start difference. First operand 241 states and 332 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-10-28 23:54:14,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:14,873 INFO L93 Difference]: Finished difference Result 737 states and 1016 transitions. [2021-10-28 23:54:14,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:54:14,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 51 [2021-10-28 23:54:14,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:14,877 INFO L225 Difference]: With dead ends: 737 [2021-10-28 23:54:14,877 INFO L226 Difference]: Without dead ends: 502 [2021-10-28 23:54:14,878 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 [2021-10-28 23:54:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-28 23:54:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 250. [2021-10-28 23:54:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.3694779116465863) internal successors, (341), 249 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) [2021-10-28 23:54:14,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 341 transitions. [2021-10-28 23:54:14,909 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 341 transitions. Word has length 51 [2021-10-28 23:54:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:14,910 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 341 transitions. [2021-10-28 23:54:14,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2021-10-28 23:54:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 341 transitions. [2021-10-28 23:54:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 23:54:14,911 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:14,912 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] [2021-10-28 23:54:14,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 23:54:14,912 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash -723913245, now seen corresponding path program 1 times [2021-10-28 23:54:14,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:14,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245263291] [2021-10-28 23:54:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:14,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:14,968 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:54:14,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:14,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245263291] [2021-10-28 23:54:14,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245263291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:14,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:14,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:54:14,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037489479] [2021-10-28 23:54:14,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:54:14,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:14,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:54:14,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:54:14,971 INFO L87 Difference]: Start difference. First operand 250 states and 341 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-10-28 23:54:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:15,057 INFO L93 Difference]: Finished difference Result 588 states and 802 transitions. [2021-10-28 23:54:15,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:54:15,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 51 [2021-10-28 23:54:15,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:15,061 INFO L225 Difference]: With dead ends: 588 [2021-10-28 23:54:15,061 INFO L226 Difference]: Without dead ends: 344 [2021-10-28 23:54:15,062 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 [2021-10-28 23:54:15,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-28 23:54:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 218. [2021-10-28 23:54:15,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 217 states have (on average 1.3410138248847927) internal successors, (291), 217 states have internal predecessors, (291), 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) [2021-10-28 23:54:15,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 291 transitions. [2021-10-28 23:54:15,097 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 291 transitions. Word has length 51 [2021-10-28 23:54:15,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:15,098 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 291 transitions. [2021-10-28 23:54:15,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2021-10-28 23:54:15,098 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 291 transitions. [2021-10-28 23:54:15,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-28 23:54:15,099 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:15,100 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] [2021-10-28 23:54:15,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 23:54:15,100 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:15,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:15,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1573662553, now seen corresponding path program 1 times [2021-10-28 23:54:15,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:15,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359872624] [2021-10-28 23:54:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:15,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:15,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:15,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359872624] [2021-10-28 23:54:15,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359872624] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:54:15,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58982616] [2021-10-28 23:54:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:15,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:54:15,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:54:15,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:54:15,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:54:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:15,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:54:15,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:54:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:54:15,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58982616] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:54:15,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:54:15,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-28 23:54:15,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127878835] [2021-10-28 23:54:15,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:54:15,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:15,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:54:15,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:54:15,606 INFO L87 Difference]: Start difference. First operand 218 states and 291 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-10-28 23:54:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:15,882 INFO L93 Difference]: Finished difference Result 618 states and 840 transitions. [2021-10-28 23:54:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:54:15,883 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-10-28 23:54:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:15,886 INFO L225 Difference]: With dead ends: 618 [2021-10-28 23:54:15,886 INFO L226 Difference]: Without dead ends: 454 [2021-10-28 23:54:15,887 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:54:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-28 23:54:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 266. [2021-10-28 23:54:15,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.3396226415094339) internal successors, (355), 265 states have internal predecessors, (355), 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) [2021-10-28 23:54:15,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 355 transitions. [2021-10-28 23:54:15,920 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 355 transitions. Word has length 52 [2021-10-28 23:54:15,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:15,921 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 355 transitions. [2021-10-28 23:54:15,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-10-28 23:54:15,921 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 355 transitions. [2021-10-28 23:54:15,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:54:15,922 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:15,922 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] [2021-10-28 23:54:15,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 23:54:16,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-28 23:54:16,149 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:16,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:16,150 INFO L85 PathProgramCache]: Analyzing trace with hash -5787080, now seen corresponding path program 2 times [2021-10-28 23:54:16,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:16,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212844358] [2021-10-28 23:54:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:16,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 23:54:16,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:16,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212844358] [2021-10-28 23:54:16,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212844358] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:16,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:16,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:54:16,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938733392] [2021-10-28 23:54:16,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:54:16,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:54:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:54:16,292 INFO L87 Difference]: Start difference. First operand 266 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-10-28 23:54:16,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:16,622 INFO L93 Difference]: Finished difference Result 794 states and 1075 transitions. [2021-10-28 23:54:16,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:54:16,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 73 [2021-10-28 23:54:16,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:16,627 INFO L225 Difference]: With dead ends: 794 [2021-10-28 23:54:16,627 INFO L226 Difference]: Without dead ends: 575 [2021-10-28 23:54:16,628 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 [2021-10-28 23:54:16,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-10-28 23:54:16,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 370. [2021-10-28 23:54:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 1.3360433604336044) internal successors, (493), 369 states have internal predecessors, (493), 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) [2021-10-28 23:54:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 493 transitions. [2021-10-28 23:54:16,706 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 493 transitions. Word has length 73 [2021-10-28 23:54:16,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:16,706 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 493 transitions. [2021-10-28 23:54:16,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2021-10-28 23:54:16,707 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 493 transitions. [2021-10-28 23:54:16,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 23:54:16,708 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:54:16,708 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] [2021-10-28 23:54:16,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 23:54:16,708 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:54:16,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:54:16,709 INFO L85 PathProgramCache]: Analyzing trace with hash 268972534, now seen corresponding path program 1 times [2021-10-28 23:54:16,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:54:16,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070839973] [2021-10-28 23:54:16,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:54:16,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:54:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:54:16,807 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-28 23:54:16,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:54:16,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070839973] [2021-10-28 23:54:16,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070839973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:54:16,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:54:16,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:54:16,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245573029] [2021-10-28 23:54:16,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:54:16,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:54:16,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:54:16,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:54:16,810 INFO L87 Difference]: Start difference. First operand 370 states and 493 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-10-28 23:54:16,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:54:16,947 INFO L93 Difference]: Finished difference Result 768 states and 1024 transitions. [2021-10-28 23:54:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:54:16,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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 73 [2021-10-28 23:54:16,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:54:16,948 INFO L225 Difference]: With dead ends: 768 [2021-10-28 23:54:16,948 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:54:16,949 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 [2021-10-28 23:54:16,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:54:16,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:54:16,950 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) [2021-10-28 23:54:16,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:54:16,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2021-10-28 23:54:16,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:54:16,950 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:54:16,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 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) [2021-10-28 23:54:16,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:54:16,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:54:16,953 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:54:16,954 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:54:16,955 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:54:16,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-28 23:54:16,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:54:16,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:17,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:18,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:19,904 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:54:25,757 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 963) no Hoare annotation was computed. [2021-10-28 23:54:25,757 INFO L857 garLoopResultBuilder]: For program point L234(lines 234 251) no Hoare annotation was computed. [2021-10-28 23:54:25,757 INFO L857 garLoopResultBuilder]: For program point L234-1(lines 234 251) no Hoare annotation was computed. [2021-10-28 23:54:25,757 INFO L857 garLoopResultBuilder]: For program point L234-2(lines 234 251) no Hoare annotation was computed. [2021-10-28 23:54:25,758 INFO L857 garLoopResultBuilder]: For program point L401(lines 400 449) no Hoare annotation was computed. [2021-10-28 23:54:25,758 INFO L857 garLoopResultBuilder]: For program point L963(line 963) no Hoare annotation was computed. [2021-10-28 23:54:25,758 INFO L857 garLoopResultBuilder]: For program point L963-1(line 963) no Hoare annotation was computed. [2021-10-28 23:54:25,758 INFO L857 garLoopResultBuilder]: For program point L963-2(line 963) no Hoare annotation was computed. [2021-10-28 23:54:25,758 INFO L857 garLoopResultBuilder]: For program point L402(lines 402 406) no Hoare annotation was computed. [2021-10-28 23:54:25,758 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 375) no Hoare annotation was computed. [2021-10-28 23:54:25,759 INFO L853 garLoopResultBuilder]: At program point L369-1(lines 369 375) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3))) [2021-10-28 23:54:25,759 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,759 INFO L857 garLoopResultBuilder]: For program point L336-2(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,759 INFO L857 garLoopResultBuilder]: For program point L336-3(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,760 INFO L857 garLoopResultBuilder]: For program point L336-5(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,760 INFO L857 garLoopResultBuilder]: For program point L336-6(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,760 INFO L857 garLoopResultBuilder]: For program point L336-8(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,760 INFO L857 garLoopResultBuilder]: For program point L336-9(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,760 INFO L857 garLoopResultBuilder]: For program point L336-11(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,760 INFO L857 garLoopResultBuilder]: For program point L336-12(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,761 INFO L857 garLoopResultBuilder]: For program point L336-14(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,761 INFO L857 garLoopResultBuilder]: For program point L336-15(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,761 INFO L857 garLoopResultBuilder]: For program point L336-17(lines 336 340) no Hoare annotation was computed. [2021-10-28 23:54:25,761 INFO L857 garLoopResultBuilder]: For program point L238(lines 238 246) no Hoare annotation was computed. [2021-10-28 23:54:25,761 INFO L857 garLoopResultBuilder]: For program point L238-1(lines 238 246) no Hoare annotation was computed. [2021-10-28 23:54:25,761 INFO L857 garLoopResultBuilder]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2021-10-28 23:54:25,762 INFO L857 garLoopResultBuilder]: For program point L438(lines 438 444) no Hoare annotation was computed. [2021-10-28 23:54:25,762 INFO L853 garLoopResultBuilder]: At program point L438-1(lines 176 182) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse4 (<= 2 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 .cse4 .cse3) (and .cse0 .cse2 .cse4 .cse3 (not (= 0 ~systemActive~0))))) [2021-10-28 23:54:25,762 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2021-10-28 23:54:25,762 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 141 147) no Hoare annotation was computed. [2021-10-28 23:54:25,762 INFO L857 garLoopResultBuilder]: For program point L141-2(lines 141 147) no Hoare annotation was computed. [2021-10-28 23:54:25,763 INFO L857 garLoopResultBuilder]: For program point L141-3(lines 141 147) no Hoare annotation was computed. [2021-10-28 23:54:25,763 INFO L857 garLoopResultBuilder]: For program point L141-4(lines 141 147) no Hoare annotation was computed. [2021-10-28 23:54:25,763 INFO L857 garLoopResultBuilder]: For program point L141-5(lines 141 147) no Hoare annotation was computed. [2021-10-28 23:54:25,763 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 963) no Hoare annotation was computed. [2021-10-28 23:54:25,763 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 225) no Hoare annotation was computed. [2021-10-28 23:54:25,763 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 208 225) no Hoare annotation was computed. [2021-10-28 23:54:25,764 INFO L857 garLoopResultBuilder]: For program point L208-2(lines 208 225) no Hoare annotation was computed. [2021-10-28 23:54:25,764 INFO L857 garLoopResultBuilder]: For program point L208-3(lines 208 225) no Hoare annotation was computed. [2021-10-28 23:54:25,764 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2021-10-28 23:54:25,764 INFO L857 garLoopResultBuilder]: For program point L208-4(lines 208 225) no Hoare annotation was computed. [2021-10-28 23:54:25,764 INFO L857 garLoopResultBuilder]: For program point L208-5(lines 208 225) no Hoare annotation was computed. [2021-10-28 23:54:25,764 INFO L853 garLoopResultBuilder]: At program point L836-2(lines 836 850) the Hoare annotation is: false [2021-10-28 23:54:25,765 INFO L853 garLoopResultBuilder]: At program point L176(lines 175 194) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3 (not (= 0 ~systemActive~0))))) [2021-10-28 23:54:25,765 INFO L857 garLoopResultBuilder]: For program point L176-1(lines 176 182) no Hoare annotation was computed. [2021-10-28 23:54:25,765 INFO L853 garLoopResultBuilder]: At program point L176-2(lines 175 194) the Hoare annotation is: false [2021-10-28 23:54:25,765 INFO L853 garLoopResultBuilder]: At program point L176-3(lines 175 194) the Hoare annotation is: false [2021-10-28 23:54:25,765 INFO L857 garLoopResultBuilder]: For program point L837(line 837) no Hoare annotation was computed. [2021-10-28 23:54:25,766 INFO L853 garLoopResultBuilder]: At program point L342(lines 327 345) the Hoare annotation is: false [2021-10-28 23:54:25,766 INFO L853 garLoopResultBuilder]: At program point L342-1(lines 327 345) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse4) (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 0) .cse2 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (<= 1 ~waterLevel~0) .cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 1) .cse4))) [2021-10-28 23:54:25,766 INFO L853 garLoopResultBuilder]: At program point L342-2(lines 327 345) the Hoare annotation is: false [2021-10-28 23:54:25,766 INFO L853 garLoopResultBuilder]: At program point L342-3(lines 327 345) the Hoare annotation is: false [2021-10-28 23:54:25,766 INFO L853 garLoopResultBuilder]: At program point L342-4(lines 327 345) the Hoare annotation is: false [2021-10-28 23:54:25,767 INFO L853 garLoopResultBuilder]: At program point L342-5(lines 327 345) the Hoare annotation is: false [2021-10-28 23:54:25,767 INFO L857 garLoopResultBuilder]: For program point L410(lines 410 416) no Hoare annotation was computed. [2021-10-28 23:54:25,767 INFO L853 garLoopResultBuilder]: At program point L410-1(lines 410 416) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1) .cse5) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (<= 1 ~waterLevel~0) .cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 .cse3 .cse4 .cse5))) [2021-10-28 23:54:25,767 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 220) no Hoare annotation was computed. [2021-10-28 23:54:25,767 INFO L857 garLoopResultBuilder]: For program point L212-1(lines 212 220) no Hoare annotation was computed. [2021-10-28 23:54:25,768 INFO L853 garLoopResultBuilder]: At program point L146(lines 137 150) the Hoare annotation is: false [2021-10-28 23:54:25,768 INFO L857 garLoopResultBuilder]: For program point L212-2(lines 212 220) no Hoare annotation was computed. [2021-10-28 23:54:25,768 INFO L853 garLoopResultBuilder]: At program point L146-1(lines 137 150) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 (<= 2 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse4) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (<= 1 ~waterLevel~0) .cse3 .cse4))) [2021-10-28 23:54:25,768 INFO L857 garLoopResultBuilder]: For program point L212-3(lines 212 220) no Hoare annotation was computed. [2021-10-28 23:54:25,768 INFO L853 garLoopResultBuilder]: At program point L146-2(lines 137 150) the Hoare annotation is: false [2021-10-28 23:54:25,768 INFO L857 garLoopResultBuilder]: For program point L212-4(lines 212 220) no Hoare annotation was computed. [2021-10-28 23:54:25,769 INFO L853 garLoopResultBuilder]: At program point L146-3(lines 137 150) the Hoare annotation is: false [2021-10-28 23:54:25,769 INFO L857 garLoopResultBuilder]: For program point L212-5(lines 212 220) no Hoare annotation was computed. [2021-10-28 23:54:25,769 INFO L853 garLoopResultBuilder]: At program point L146-4(lines 137 150) the Hoare annotation is: false [2021-10-28 23:54:25,769 INFO L853 garLoopResultBuilder]: At program point L146-5(lines 137 150) the Hoare annotation is: false [2021-10-28 23:54:25,769 INFO L857 garLoopResultBuilder]: For program point L840(lines 840 844) no Hoare annotation was computed. [2021-10-28 23:54:25,770 INFO L857 garLoopResultBuilder]: For program point L840-1(lines 176 182) no Hoare annotation was computed. [2021-10-28 23:54:25,770 INFO L853 garLoopResultBuilder]: At program point L183(lines 183 189) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~8 1)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))) (and .cse0 .cse4 .cse1 .cse3 (= ~waterLevel~0 1)) (and .cse0 .cse4 .cse1 .cse2 .cse3))) [2021-10-28 23:54:25,770 INFO L853 garLoopResultBuilder]: At program point L183-1(lines 183 189) the Hoare annotation is: false [2021-10-28 23:54:25,770 INFO L853 garLoopResultBuilder]: At program point L183-2(lines 183 189) the Hoare annotation is: false [2021-10-28 23:54:25,770 INFO L857 garLoopResultBuilder]: For program point L976(lines 976 989) no Hoare annotation was computed. [2021-10-28 23:54:25,771 INFO L853 garLoopResultBuilder]: At program point L976-1(lines 1 992) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (<= 1 ~waterLevel~0) .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 (<= 2 ~waterLevel~0) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse3 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse4))) [2021-10-28 23:54:25,771 INFO L857 garLoopResultBuilder]: For program point L910(lines 910 917) no Hoare annotation was computed. [2021-10-28 23:54:25,771 INFO L857 garLoopResultBuilder]: For program point L976-2(lines 976 989) no Hoare annotation was computed. [2021-10-28 23:54:25,771 INFO L853 garLoopResultBuilder]: At program point L976-3(lines 1 992) the Hoare annotation is: false [2021-10-28 23:54:25,771 INFO L860 garLoopResultBuilder]: At program point L910-1(lines 910 917) the Hoare annotation is: true [2021-10-28 23:54:25,771 INFO L857 garLoopResultBuilder]: For program point L976-4(lines 976 989) no Hoare annotation was computed. [2021-10-28 23:54:25,772 INFO L853 garLoopResultBuilder]: At program point L976-5(lines 1 992) the Hoare annotation is: false [2021-10-28 23:54:25,772 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:54:25,772 INFO L853 garLoopResultBuilder]: At program point L450(lines 399 451) the Hoare annotation is: false [2021-10-28 23:54:25,772 INFO L853 garLoopResultBuilder]: At program point L946(lines 1 992) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-10-28 23:54:25,772 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2021-10-28 23:54:25,773 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 986) no Hoare annotation was computed. [2021-10-28 23:54:25,773 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 986) no Hoare annotation was computed. [2021-10-28 23:54:25,773 INFO L857 garLoopResultBuilder]: For program point L980-4(lines 980 986) no Hoare annotation was computed. [2021-10-28 23:54:25,773 INFO L853 garLoopResultBuilder]: At program point L287(lines 282 290) the Hoare annotation is: false [2021-10-28 23:54:25,773 INFO L853 garLoopResultBuilder]: At program point L287-1(lines 282 290) the Hoare annotation is: false [2021-10-28 23:54:25,774 INFO L853 garLoopResultBuilder]: At program point L287-2(lines 282 290) the Hoare annotation is: false [2021-10-28 23:54:25,774 INFO L857 garLoopResultBuilder]: For program point L420(lines 420 426) no Hoare annotation was computed. [2021-10-28 23:54:25,774 INFO L853 garLoopResultBuilder]: At program point L420-1(lines 420 426) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~8 1)) (.cse3 (<= 2 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse4 (= ~waterLevel~0 1) .cse5) (and .cse0 .cse1 .cse2 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~9) (<= 1 ~waterLevel~0) .cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 .cse3 .cse4 .cse5))) [2021-10-28 23:54:25,774 INFO L853 garLoopResultBuilder]: At program point L156(lines 151 159) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_main_~tmp~8 1) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (not (= 0 ~systemActive~0))) [2021-10-28 23:54:25,774 INFO L853 garLoopResultBuilder]: At program point L156-1(lines 151 159) the Hoare annotation is: false [2021-10-28 23:54:25,774 INFO L853 garLoopResultBuilder]: At program point L156-2(lines 151 159) the Hoare annotation is: false [2021-10-28 23:54:25,775 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 359) no Hoare annotation was computed. [2021-10-28 23:54:25,775 INFO L857 garLoopResultBuilder]: For program point L355-2(lines 355 359) no Hoare annotation was computed. [2021-10-28 23:54:25,775 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:54:25,775 INFO L857 garLoopResultBuilder]: For program point L355-3(lines 355 359) no Hoare annotation was computed. [2021-10-28 23:54:25,775 INFO L857 garLoopResultBuilder]: For program point L355-5(lines 355 359) no Hoare annotation was computed. [2021-10-28 23:54:25,775 INFO L857 garLoopResultBuilder]: For program point L355-6(lines 355 359) no Hoare annotation was computed. [2021-10-28 23:54:25,776 INFO L857 garLoopResultBuilder]: For program point L355-8(lines 355 359) no Hoare annotation was computed. [2021-10-28 23:54:25,776 INFO L853 garLoopResultBuilder]: At program point L884(lines 880 886) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_main_~tmp~8 1) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-10-28 23:54:25,776 INFO L860 garLoopResultBuilder]: At program point L919(lines 900 922) the Hoare annotation is: true [2021-10-28 23:54:25,776 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:54:25,776 INFO L853 garLoopResultBuilder]: At program point L954(lines 949 957) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-10-28 23:54:25,777 INFO L853 garLoopResultBuilder]: At program point L361(lines 346 364) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~3 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_main_~tmp~8 1) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 0)) (not (= 0 ~systemActive~0))) [2021-10-28 23:54:25,777 INFO L853 garLoopResultBuilder]: At program point L361-1(lines 346 364) the Hoare annotation is: false [2021-10-28 23:54:25,777 INFO L853 garLoopResultBuilder]: At program point L361-2(lines 346 364) the Hoare annotation is: false [2021-10-28 23:54:25,777 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2021-10-28 23:54:25,777 INFO L857 garLoopResultBuilder]: For program point L64-3(lines 64 68) no Hoare annotation was computed. [2021-10-28 23:54:25,778 INFO L857 garLoopResultBuilder]: For program point L64-6(lines 64 68) no Hoare annotation was computed. [2021-10-28 23:54:25,778 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:54:25,778 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 963) no Hoare annotation was computed. [2021-10-28 23:54:25,778 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 445) no Hoare annotation was computed. [2021-10-28 23:54:25,778 INFO L853 garLoopResultBuilder]: At program point L133(lines 128 136) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~8 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 0) .cse2 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))))) [2021-10-28 23:54:25,778 INFO L853 garLoopResultBuilder]: At program point L133-1(lines 128 136) the Hoare annotation is: false [2021-10-28 23:54:25,779 INFO L853 garLoopResultBuilder]: At program point L133-2(lines 128 136) the Hoare annotation is: false [2021-10-28 23:54:25,782 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:54:25,784 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:54:25,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:54:25 BoogieIcfgContainer [2021-10-28 23:54:25,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:54:25,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:54:25,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:54:25,815 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:54:25,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:54:11" (3/4) ... [2021-10-28 23:54:25,819 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:54:25,840 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-28 23:54:25,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-28 23:54:25,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-28 23:54:25,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-28 23:54:25,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:54:25,846 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:54:25,848 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:54:25,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-10-28 23:54:25,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-10-28 23:54:25,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && 2 <= tmp) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) [2021-10-28 23:54:25,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-28 23:54:25,878 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-28 23:54:25,878 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-28 23:54:25,879 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-28 23:54:25,879 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) [2021-10-28 23:54:25,879 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) [2021-10-28 23:54:25,881 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) [2021-10-28 23:54:25,882 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && \result == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive) [2021-10-28 23:54:25,882 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) [2021-10-28 23:54:25,883 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && tmp == 0) && \result == 0) && tmp == 1) && !(\result == 0)) && 1 <= waterLevel) && \result == 1) && !(tmp___0 == 0)) && !(0 == systemActive) [2021-10-28 23:54:25,884 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1) && 1 <= waterLevel) && \result == 1) && tmp == 1) && !(0 == systemActive)) [2021-10-28 23:54:25,966 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:54:25,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:54:25,968 INFO L168 Benchmark]: Toolchain (without parser) took 16038.11 ms. Allocated memory was 92.3 MB in the beginning and 195.0 MB in the end (delta: 102.8 MB). Free memory was 49.5 MB in the beginning and 83.0 MB in the end (delta: -33.6 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:25,968 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:54:25,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.52 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 58.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:25,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.35 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 54.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:25,970 INFO L168 Benchmark]: Boogie Preprocessor took 65.54 ms. Allocated memory is still 92.3 MB. Free memory was 54.8 MB in the beginning and 52.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:25,970 INFO L168 Benchmark]: RCFGBuilder took 1161.83 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 52.0 MB in the beginning and 64.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:25,971 INFO L168 Benchmark]: TraceAbstraction took 13964.22 ms. Allocated memory was 111.1 MB in the beginning and 195.0 MB in the end (delta: 83.9 MB). Free memory was 64.2 MB in the beginning and 93.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 98.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:25,971 INFO L168 Benchmark]: Witness Printer took 151.64 ms. Allocated memory is still 195.0 MB. Free memory was 93.5 MB in the beginning and 83.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:54:25,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 66.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 575.52 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 58.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.35 ms. Allocated memory is still 92.3 MB. Free memory was 58.6 MB in the beginning and 54.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.54 ms. Allocated memory is still 92.3 MB. Free memory was 54.8 MB in the beginning and 52.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1161.83 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 52.0 MB in the beginning and 64.9 MB in the end (delta: -12.9 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13964.22 ms. Allocated memory was 111.1 MB in the beginning and 195.0 MB in the end (delta: 83.9 MB). Free memory was 64.2 MB in the beginning and 93.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 98.1 MB. Max. memory is 16.1 GB. * Witness Printer took 151.64 ms. Allocated memory is still 195.0 MB. Free memory was 93.5 MB in the beginning and 83.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 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: 963]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 963]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 963]: 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, 119 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1594 SDtfs, 2108 SDslu, 2269 SDs, 0 SdLazy, 367 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=13, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 1366 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 209 NumberOfFragments, 687 HoareAnnotationTreeSize, 44 FomulaSimplifications, 1523752 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 44 FomulaSimplificationsInter, 723569 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 575 NumberOfCodeBlocks, 575 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 560 ConstructedInterpolants, 0 QuantifiedInterpolants, 941 SizeOfPredicates, 3 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 148/154 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: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 346]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 346]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && tmp == 0) && \result == 0) && tmp == 1) && !(\result == 0)) && 1 <= waterLevel) && \result == 1) && !(tmp___0 == 0)) && !(0 == systemActive) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1) && 1 <= waterLevel) && \result == 1) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1)) || ((((splverifierCounter == 0 && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 910]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 346]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive))) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && \result == 1) && !(0 == systemActive)) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 399]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && \result == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && !(0 == systemActive) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && tmp == 0) && \result == 1) && \result == 0) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1)) || ((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 2 <= waterLevel) && \result == 1) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && \result == 1) && waterLevel == 1) && !(0 == systemActive)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 <= tmp) && 1 <= waterLevel) && \result == 1) && 1 <= \result)) || ((((((((splverifierCounter == 0 && tmp == 1) && 2 <= waterLevel) && 2 <= tmp) && tmp == 0) && \result == 1) && 2 <= \result) && \result == 0) && !(0 == systemActive)) - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:54:26,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44328707-9321-4ecd-8432-35ed1f42953c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...