./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de654b8e722eb26a01715e643a442ee96e677f28cab0e875133e4d1d7edb214d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 21:05:24,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 21:05:24,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 21:05:24,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 21:05:24,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 21:05:24,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 21:05:24,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 21:05:24,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 21:05:24,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 21:05:24,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 21:05:24,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 21:05:24,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 21:05:24,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 21:05:24,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 21:05:24,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 21:05:24,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 21:05:24,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 21:05:24,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 21:05:24,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 21:05:24,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 21:05:24,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 21:05:24,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 21:05:24,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 21:05:24,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 21:05:24,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 21:05:24,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 21:05:24,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 21:05:24,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 21:05:24,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 21:05:24,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 21:05:24,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 21:05:24,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 21:05:24,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 21:05:24,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 21:05:24,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 21:05:24,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 21:05:24,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 21:05:24,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 21:05:24,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 21:05:24,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 21:05:24,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 21:05:24,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-13 21:05:24,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 21:05:24,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 21:05:24,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 21:05:24,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 21:05:24,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 21:05:24,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 21:05:24,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 21:05:24,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 21:05:24,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 21:05:24,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 21:05:24,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 21:05:24,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 21:05:24,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 21:05:24,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 21:05:24,437 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 21:05:24,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 21:05:24,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 21:05:24,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 21:05:24,438 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 21:05:24,439 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 21:05:24,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 21:05:24,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:05:24,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 21:05:24,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 21:05:24,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 21:05:24,440 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 21:05:24,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 21:05:24,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 21:05:24,441 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_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de654b8e722eb26a01715e643a442ee96e677f28cab0e875133e4d1d7edb214d [2021-11-13 21:05:24,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 21:05:24,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 21:05:24,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 21:05:24,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 21:05:24,875 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 21:05:24,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2021-11-13 21:05:24,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/data/529da9a65/738f6c8cbf9d49e0aa1a04164ef86a35/FLAGf0e8b2d36 [2021-11-13 21:05:25,589 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 21:05:25,592 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2021-11-13 21:05:25,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/data/529da9a65/738f6c8cbf9d49e0aa1a04164ef86a35/FLAGf0e8b2d36 [2021-11-13 21:05:25,858 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/data/529da9a65/738f6c8cbf9d49e0aa1a04164ef86a35 [2021-11-13 21:05:25,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 21:05:25,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 21:05:25,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 21:05:25,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 21:05:25,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 21:05:25,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:25" (1/1) ... [2021-11-13 21:05:25,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62920ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:25, skipping insertion in model container [2021-11-13 21:05:25,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:05:25" (1/1) ... [2021-11-13 21:05:25,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 21:05:25,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 21:05:26,212 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_85afc735-b3d1-462c-b269-e1f75bc3b6f8/sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c[20121,20134] [2021-11-13 21:05:26,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:05:26,228 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 21:05:26,317 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_85afc735-b3d1-462c-b269-e1f75bc3b6f8/sv-benchmarks/c/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c[20121,20134] [2021-11-13 21:05:26,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:05:26,347 INFO L208 MainTranslator]: Completed translation [2021-11-13 21:05:26,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26 WrapperNode [2021-11-13 21:05:26,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 21:05:26,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 21:05:26,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 21:05:26,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 21:05:26,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 21:05:26,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 21:05:26,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 21:05:26,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 21:05:26,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 21:05:26,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 21:05:26,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 21:05:26,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 21:05:26,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:05:26" (1/1) ... [2021-11-13 21:05:26,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:05:26,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/z3 [2021-11-13 21:05:26,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 21:05:26,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85afc735-b3d1-462c-b269-e1f75bc3b6f8/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 21:05:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 21:05:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 21:05:26,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 21:05:26,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 21:05:28,705 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 21:05:28,705 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 21:05:28,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:28 BoogieIcfgContainer [2021-11-13 21:05:28,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 21:05:28,710 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 21:05:28,710 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 21:05:28,723 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 21:05:28,723 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:05:28" (1/1) ... [2021-11-13 21:05:28,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:05:28,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2021-11-13 21:05:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-13 21:05:28,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 21:05:28,839 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:28,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:05:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:29,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2021-11-13 21:05:29,715 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2021-11-13 21:05:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 21:05:29,716 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:29,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:05:30,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2021-11-13 21:05:30,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2021-11-13 21:05:30,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 21:05:30,710 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:30,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:05:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:31,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-11-13 21:05:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-11-13 21:05:31,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 21:05:31,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:31,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:05:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:32,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2021-11-13 21:05:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2021-11-13 21:05:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-13 21:05:32,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:32,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:05:41,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:41,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 56 transitions. [2021-11-13 21:05:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2021-11-13 21:05:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 21:05:41,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:41,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:43,596 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:05:53,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:53,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 42 states and 72 transitions. [2021-11-13 21:05:53,589 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 72 transitions. [2021-11-13 21:05:53,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 21:05:53,590 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:53,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:05:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:05:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 50 states and 87 transitions. [2021-11-13 21:05:58,622 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 87 transitions. [2021-11-13 21:05:58,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 21:05:58,623 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:05:58,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:05:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:05:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:06:12,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:06:12,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 68 states and 130 transitions. [2021-11-13 21:06:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 130 transitions. [2021-11-13 21:06:12,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:06:12,037 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:06:12,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:06:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:06:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:06:22,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:06:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 81 states and 163 transitions. [2021-11-13 21:06:22,871 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 163 transitions. [2021-11-13 21:06:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:06:22,873 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:06:22,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:06:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:06:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:06:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:06:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 87 states and 173 transitions. [2021-11-13 21:06:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 173 transitions. [2021-11-13 21:06:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:06:27,245 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:06:27,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:06:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:06:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:06:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:06:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 88 states and 176 transitions. [2021-11-13 21:06:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 176 transitions. [2021-11-13 21:06:28,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:06:28,634 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:06:28,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:06:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:06:28,946 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:06:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:06:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 90 states and 182 transitions. [2021-11-13 21:06:30,041 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 182 transitions. [2021-11-13 21:06:30,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 21:06:30,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:06:30,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:06:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:06:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:06:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:06:30,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 91 states and 184 transitions. [2021-11-13 21:06:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 184 transitions. [2021-11-13 21:06:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 21:06:30,726 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:06:30,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:06:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:06:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-13 21:06:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:06:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 91 states and 183 transitions. [2021-11-13 21:06:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 183 transitions. [2021-11-13 21:06:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 21:06:31,421 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:06:31,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:06:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:06:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:08:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:08:07,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 116 states and 246 transitions. [2021-11-13 21:08:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 246 transitions. [2021-11-13 21:08:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-13 21:08:07,875 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:08:07,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:08:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:08:19,034 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:08:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:08:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 120 states and 255 transitions. [2021-11-13 21:08:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 255 transitions. [2021-11-13 21:08:29,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:08:29,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:08:29,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:08:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:08:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:08:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:08:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 130 states and 281 transitions. [2021-11-13 21:08:44,768 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 281 transitions. [2021-11-13 21:08:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:08:44,769 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:08:44,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:08:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:08:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:09:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:09:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 140 states and 304 transitions. [2021-11-13 21:09:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 304 transitions. [2021-11-13 21:09:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:09:05,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:09:05,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:09:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:09:05,801 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:09:13,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:09:13,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 146 states and 311 transitions. [2021-11-13 21:09:13,932 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 311 transitions. [2021-11-13 21:09:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:09:13,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:09:13,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:09:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:10:19,421 WARN L227 SmtUtils]: Spent 7.21s on a formula simplification. DAG size of input: 413 DAG size of output: 412 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:10:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:11:03,742 WARN L227 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 515 DAG size of output: 358 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:11:12,332 WARN L227 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 517 DAG size of output: 463 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:11:29,964 WARN L227 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 519 DAG size of output: 465 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:11:41,485 WARN L227 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 519 DAG size of output: 362 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:11:47,609 WARN L227 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 521 DAG size of output: 467 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:12:10,171 WARN L227 SmtUtils]: Spent 15.39s on a formula simplification. DAG size of input: 571 DAG size of output: 526 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:12:31,309 WARN L227 SmtUtils]: Spent 15.73s on a formula simplification. DAG size of input: 573 DAG size of output: 555 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:12:39,009 WARN L227 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 521 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:13:00,487 WARN L227 SmtUtils]: Spent 13.32s on a formula simplification. DAG size of input: 574 DAG size of output: 556 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:13:27,966 WARN L227 SmtUtils]: Spent 20.40s on a formula simplification. DAG size of input: 574 DAG size of output: 528 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:13:43,548 WARN L227 SmtUtils]: Spent 15.07s on a formula simplification. DAG size of input: 576 DAG size of output: 558 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:13:53,309 WARN L227 SmtUtils]: Spent 7.23s on a formula simplification that was a NOOP. DAG size: 523 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:14:20,037 WARN L227 SmtUtils]: Spent 19.74s on a formula simplification. DAG size of input: 576 DAG size of output: 530 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:14:35,310 WARN L227 SmtUtils]: Spent 14.75s on a formula simplification. DAG size of input: 578 DAG size of output: 560 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:14:42,871 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 525 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:15:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:15:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 167 states and 351 transitions. [2021-11-13 21:15:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 351 transitions. [2021-11-13 21:15:18,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:15:18,628 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:15:18,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:15:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:16:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:16:55,908 WARN L227 SmtUtils]: Spent 17.07s on a formula simplification. DAG size of input: 562 DAG size of output: 516 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:17:13,599 WARN L227 SmtUtils]: Spent 17.00s on a formula simplification. DAG size of input: 564 DAG size of output: 546 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 21:18:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:18:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 176 states and 377 transitions. [2021-11-13 21:18:22,340 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 377 transitions. [2021-11-13 21:18:22,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-13 21:18:22,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:18:22,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:18:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:18:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:18:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 177 states and 377 transitions. [2021-11-13 21:18:23,856 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 377 transitions. [2021-11-13 21:18:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 21:18:23,857 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:18:23,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:18:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat