./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/packet_filter.i --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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-data/packet_filter.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/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 d604fdd8f7c4d34db0106d8a0ff422218ae80e9ee6eb03f691b84d2fcc8ad49f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:21:24,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:21:24,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:21:24,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:21:24,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:21:24,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:21:24,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:21:24,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:21:24,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:21:24,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:21:24,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:21:24,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:21:24,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:21:24,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:21:24,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:21:24,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:21:24,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:21:24,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:21:24,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:21:24,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:21:24,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:21:24,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:21:24,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:21:24,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:21:24,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:21:24,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:21:24,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:21:24,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:21:24,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:21:24,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:21:24,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:21:24,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:21:24,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:21:24,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:21:24,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:21:24,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:21:24,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:21:24,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:21:24,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:21:24,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:21:24,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:21:24,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-13 23:21:24,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:21:24,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:21:24,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:21:24,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:21:24,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:21:24,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:21:24,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:21:24,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:21:24,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:21:24,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:21:24,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:21:24,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:21:24,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:21:24,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:21:24,520 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:21:24,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:21:24,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:21:24,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:21:24,521 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:21:24,521 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:21:24,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:21:24,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:21:24,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:21:24,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:21:24,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:21:24,523 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:21:24,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:21:24,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:21:24,523 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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d604fdd8f7c4d34db0106d8a0ff422218ae80e9ee6eb03f691b84d2fcc8ad49f [2021-11-13 23:21:24,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:21:24,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:21:24,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:21:24,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:21:24,869 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:21:24,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/heap-data/packet_filter.i [2021-11-13 23:21:24,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/data/a901f2c90/a69c2d0088d444adb3a94d1b3c358527/FLAG6ec168375 [2021-11-13 23:21:25,504 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:21:25,505 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/sv-benchmarks/c/heap-data/packet_filter.i [2021-11-13 23:21:25,521 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/data/a901f2c90/a69c2d0088d444adb3a94d1b3c358527/FLAG6ec168375 [2021-11-13 23:21:25,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/data/a901f2c90/a69c2d0088d444adb3a94d1b3c358527 [2021-11-13 23:21:25,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:21:25,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:21:25,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:21:25,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:21:25,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:21:25,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:21:25" (1/1) ... [2021-11-13 23:21:25,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be1c803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:25, skipping insertion in model container [2021-11-13 23:21:25,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:21:25" (1/1) ... [2021-11-13 23:21:25,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:21:25,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:21:26,152 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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/sv-benchmarks/c/heap-data/packet_filter.i[23925,23938] [2021-11-13 23:21:26,160 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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/sv-benchmarks/c/heap-data/packet_filter.i[24159,24172] [2021-11-13 23:21:26,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:21:26,175 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:21:26,217 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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/sv-benchmarks/c/heap-data/packet_filter.i[23925,23938] [2021-11-13 23:21:26,220 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_baabde3c-8ae5-4d44-a012-26a5c7d431c9/sv-benchmarks/c/heap-data/packet_filter.i[24159,24172] [2021-11-13 23:21:26,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:21:26,283 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:21:26,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26 WrapperNode [2021-11-13 23:21:26,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:21:26,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:21:26,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:21:26,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:21:26,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:21:26,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:21:26,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:21:26,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:21:26,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:21:26,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:21:26,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:21:26,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:21:26,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:21:26" (1/1) ... [2021-11-13 23:21:26,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:21:26,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:21:26,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:21:26,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baabde3c-8ae5-4d44-a012-26a5c7d431c9/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:21:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 23:21:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 23:21:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 23:21:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_queue [2021-11-13 23:21:26,552 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_queue [2021-11-13 23:21:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 23:21:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:21:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 23:21:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_charp [2021-11-13 23:21:26,553 INFO L130 BoogieDeclarations]: Found specification of procedure send [2021-11-13 23:21:26,554 INFO L138 BoogieDeclarations]: Found implementation of procedure send [2021-11-13 23:21:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 23:21:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 23:21:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:21:26,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:21:26,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:21:27,286 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:21:27,287 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 23:21:27,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:21:27 BoogieIcfgContainer [2021-11-13 23:21:27,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:21:27,291 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:21:27,291 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:21:27,304 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:21:27,304 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:21:27" (1/1) ... [2021-11-13 23:21:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:21:27,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:27,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2021-11-13 23:21:27,421 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-11-13 23:21:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 23:21:27,424 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:27,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:27,567 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 23:21:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2021-11-13 23:21:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2021-11-13 23:21:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 23:21:27,596 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:27,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:27,685 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 23:21:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2021-11-13 23:21:27,742 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-11-13 23:21:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 23:21:27,743 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:27,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:27,824 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 23:21:28,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 55 transitions. [2021-11-13 23:21:28,065 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2021-11-13 23:21:28,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 23:21:28,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:28,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:28,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:21:28,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:28,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 46 states and 67 transitions. [2021-11-13 23:21:28,467 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2021-11-13 23:21:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 23:21:28,468 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:28,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:21:28,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 50 states and 80 transitions. [2021-11-13 23:21:28,823 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 80 transitions. [2021-11-13 23:21:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 23:21:28,825 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:28,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:21:30,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:30,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 62 states and 115 transitions. [2021-11-13 23:21:30,857 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 115 transitions. [2021-11-13 23:21:30,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 23:21:30,858 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:30,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:21:32,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:32,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 66 states and 129 transitions. [2021-11-13 23:21:32,082 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 129 transitions. [2021-11-13 23:21:32,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 23:21:32,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:32,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:21:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:21:35,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:21:35,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 75 states and 159 transitions. [2021-11-13 23:21:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 159 transitions. [2021-11-13 23:21:35,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 23:21:35,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:21:35,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:21:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:22:14,077 WARN L227 SmtUtils]: Spent 13.45s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:22:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:22:45,796 WARN L227 SmtUtils]: Spent 18.99s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:23:09,190 WARN L227 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:23:26,896 WARN L227 SmtUtils]: Spent 15.73s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:23:50,879 WARN L227 SmtUtils]: Spent 15.42s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:24:12,364 WARN L227 SmtUtils]: Spent 17.90s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:24:14,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 23:24:15,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:24:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 82 states and 178 transitions. [2021-11-13 23:24:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 178 transitions. [2021-11-13 23:24:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 23:24:15,282 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:24:15,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:24:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:24:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:24:47,078 WARN L227 SmtUtils]: Spent 21.38s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:25:14,292 WARN L227 SmtUtils]: Spent 18.89s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:25:39,563 WARN L227 SmtUtils]: Spent 17.47s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:26:08,548 WARN L227 SmtUtils]: Spent 18.81s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:26:12,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:26:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 82 states and 175 transitions. [2021-11-13 23:26:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 175 transitions. [2021-11-13 23:26:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 23:26:12,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:26:12,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:26:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:26:13,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:26:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:26:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 86 states and 189 transitions. [2021-11-13 23:26:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 189 transitions. [2021-11-13 23:26:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 23:26:24,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:26:24,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:26:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:26:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:26:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:26:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 88 states and 192 transitions. [2021-11-13 23:26:27,288 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 192 transitions. [2021-11-13 23:26:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 23:26:27,289 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:26:27,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:26:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:26:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:26:29,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:26:29,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 88 states and 188 transitions. [2021-11-13 23:26:29,940 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 188 transitions. [2021-11-13 23:26:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 23:26:29,941 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:26:29,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:26:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:26:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:27:14,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:27:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 102 states and 232 transitions. [2021-11-13 23:27:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 232 transitions. [2021-11-13 23:27:14,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 23:27:14,481 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:27:14,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:27:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:27:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:28:47,210 WARN L227 SmtUtils]: Spent 59.41s on a formula simplification. DAG size of input: 207 DAG size of output: 207 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:30:01,339 WARN L227 SmtUtils]: Spent 57.85s on a formula simplification. DAG size of input: 208 DAG size of output: 206 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:30:51,314 WARN L227 SmtUtils]: Spent 29.28s on a formula simplification that was a NOOP. DAG size: 208 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:31:40,662 WARN L227 SmtUtils]: Spent 27.45s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:31:42,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 23:31:55,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:31:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 110 states and 263 transitions. [2021-11-13 23:31:55,167 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 263 transitions. [2021-11-13 23:31:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 23:31:55,169 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:31:55,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:31:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:31:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:32:04,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:32:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 113 states and 272 transitions. [2021-11-13 23:32:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 272 transitions. [2021-11-13 23:32:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 23:32:04,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:32:04,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:32:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:32:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:32:08,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:32:08,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 115 states and 274 transitions. [2021-11-13 23:32:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 274 transitions. [2021-11-13 23:32:08,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 23:32:08,882 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:32:08,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:32:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:32:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:32:46,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:32:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 121 states and 297 transitions. [2021-11-13 23:32:46,379 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 297 transitions. [2021-11-13 23:32:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 23:32:46,380 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:32:46,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:32:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:34:03,806 WARN L227 SmtUtils]: Spent 19.71s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 23:34:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:35:34,154 WARN L227 SmtUtils]: Spent 1.10m on a formula simplification. DAG size of input: 207 DAG size of output: 206 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)