./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0137.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0137.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:16:42,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:16:42,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:16:42,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:16:42,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:16:42,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:16:42,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:16:42,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:16:42,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:16:42,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:16:42,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:16:42,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:16:42,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:16:42,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:16:42,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:16:42,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:16:42,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:16:42,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:16:42,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:16:42,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:16:42,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:16:42,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:16:42,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:16:42,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:16:42,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:16:42,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:16:42,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:16:42,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:16:42,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:16:42,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:16:42,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:16:42,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:16:42,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:16:42,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:16:42,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:16:42,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:16:42,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:16:42,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:16:42,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:16:42,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:16:42,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:16:42,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 04:16:42,403 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:16:42,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:16:42,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:16:42,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:16:42,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:16:42,408 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:16:42,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:16:42,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:16:42,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:16:42,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:16:42,409 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:16:42,410 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:16:42,411 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:16:42,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:16:42,411 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:16:42,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:16:42,412 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:16:42,412 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:16:42,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:16:42,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:16:42,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:16:42,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:16:42,413 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:16:42,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:16:42,414 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_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c2d362b3c58f37a9b1e964b448eb3d54c85d26676417295a73853b3a7cc716a [2021-10-29 04:16:42,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:16:42,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:16:42,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:16:42,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:16:42,874 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:16:42,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/memsafety/test-0137.i [2021-10-29 04:16:42,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/data/04fb2a85a/b784883e59ac41078b5caa92f8de3d42/FLAG293ecbd39 [2021-10-29 04:16:43,753 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:16:43,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/sv-benchmarks/c/memsafety/test-0137.i [2021-10-29 04:16:43,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/data/04fb2a85a/b784883e59ac41078b5caa92f8de3d42/FLAG293ecbd39 [2021-10-29 04:16:44,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/data/04fb2a85a/b784883e59ac41078b5caa92f8de3d42 [2021-10-29 04:16:44,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:16:44,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:16:44,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:16:44,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:16:44,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:16:44,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe5e754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44, skipping insertion in model container [2021-10-29 04:16:44,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:16:44,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:16:44,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:16:44,587 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:16:44,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:16:44,735 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:16:44,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44 WrapperNode [2021-10-29 04:16:44,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:16:44,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:16:44,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:16:44,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:16:44,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:16:44,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:16:44,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:16:44,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:16:44,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:16:44,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:16:44,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:16:44,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:16:44,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:16:44" (1/1) ... [2021-10-29 04:16:44,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:16:45,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:16:45,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:16:45,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:16:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:16:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:16:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:16:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 04:16:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:16:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 04:16:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:16:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:16:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:16:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:16:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:16:46,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:16:46,346 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-10-29 04:16:46,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:46 BoogieIcfgContainer [2021-10-29 04:16:46,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:16:46,360 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:16:46,361 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:16:46,390 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:16:46,390 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:46" (1/1) ... [2021-10-29 04:16:46,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:16:46,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 121 states and 129 transitions. [2021-10-29 04:16:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2021-10-29 04:16:46,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 04:16:46,476 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:46,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 120 states and 127 transitions. [2021-10-29 04:16:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 127 transitions. [2021-10-29 04:16:46,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 04:16:46,755 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:46,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 119 states and 126 transitions. [2021-10-29 04:16:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 126 transitions. [2021-10-29 04:16:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:16:46,969 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:46,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:47,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:47,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 122 states and 131 transitions. [2021-10-29 04:16:47,350 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 131 transitions. [2021-10-29 04:16:47,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:16:47,351 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:47,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:48,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 125 states and 135 transitions. [2021-10-29 04:16:48,213 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2021-10-29 04:16:48,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:16:48,214 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:48,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:48,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:49,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:49,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 129 states and 142 transitions. [2021-10-29 04:16:49,434 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2021-10-29 04:16:49,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:16:49,435 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:49,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 133 states and 149 transitions. [2021-10-29 04:16:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 149 transitions. [2021-10-29 04:16:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:16:51,270 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:51,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 135 states and 154 transitions. [2021-10-29 04:16:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 154 transitions. [2021-10-29 04:16:52,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:16:52,164 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:52,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:53,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 137 states and 159 transitions. [2021-10-29 04:16:53,614 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2021-10-29 04:16:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:16:53,614 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:53,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 136 states and 158 transitions. [2021-10-29 04:16:53,657 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2021-10-29 04:16:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:16:53,658 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:53,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:54,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 137 states and 160 transitions. [2021-10-29 04:16:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2021-10-29 04:16:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:16:54,607 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:54,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:55,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:55,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 141 states and 168 transitions. [2021-10-29 04:16:55,957 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 168 transitions. [2021-10-29 04:16:55,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:16:55,960 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:55,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:16:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 144 states and 173 transitions. [2021-10-29 04:16:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2021-10-29 04:16:57,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:16:57,735 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:57,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 151 states and 186 transitions. [2021-10-29 04:17:00,557 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 186 transitions. [2021-10-29 04:17:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:17:00,558 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:00,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:01,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:04,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:04,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 158 states and 200 transitions. [2021-10-29 04:17:04,682 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 200 transitions. [2021-10-29 04:17:04,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:17:04,683 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:04,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:05,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:17:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:05,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 159 states and 203 transitions. [2021-10-29 04:17:05,394 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 203 transitions. [2021-10-29 04:17:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:17:05,395 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:05,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:09,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 163 states and 218 transitions. [2021-10-29 04:17:09,145 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 218 transitions. [2021-10-29 04:17:09,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:17:09,146 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:09,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:09,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:11,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:11,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 166 states and 222 transitions. [2021-10-29 04:17:11,121 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 222 transitions. [2021-10-29 04:17:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:17:11,122 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:11,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 168 states and 224 transitions. [2021-10-29 04:17:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 224 transitions. [2021-10-29 04:17:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:17:13,675 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:13,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:14,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 171 states and 230 transitions. [2021-10-29 04:17:14,271 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 230 transitions. [2021-10-29 04:17:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:17:14,272 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:14,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:16,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:16,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 174 states and 236 transitions. [2021-10-29 04:17:16,649 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 236 transitions. [2021-10-29 04:17:16,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:17:16,650 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:16,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 176 states and 239 transitions. [2021-10-29 04:17:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 239 transitions. [2021-10-29 04:17:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:17:16,727 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:16,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 181 states and 248 transitions. [2021-10-29 04:17:18,637 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 248 transitions. [2021-10-29 04:17:18,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:17:18,637 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:18,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:18,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:17:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 182 states and 250 transitions. [2021-10-29 04:17:20,040 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 250 transitions. [2021-10-29 04:17:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:17:20,040 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:20,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:17:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:21,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 183 states and 251 transitions. [2021-10-29 04:17:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 251 transitions. [2021-10-29 04:17:21,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:17:21,723 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:21,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:24,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 190 states and 265 transitions. [2021-10-29 04:17:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 265 transitions. [2021-10-29 04:17:24,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:17:24,192 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:24,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:28,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:28,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 197 states and 278 transitions. [2021-10-29 04:17:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 278 transitions. [2021-10-29 04:17:28,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:17:28,454 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:28,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:29,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 199 states and 282 transitions. [2021-10-29 04:17:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 282 transitions. [2021-10-29 04:17:29,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:17:29,451 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:29,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 201 states and 285 transitions. [2021-10-29 04:17:30,572 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 285 transitions. [2021-10-29 04:17:30,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:17:30,573 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:30,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 04:17:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 201 states and 284 transitions. [2021-10-29 04:17:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 284 transitions. [2021-10-29 04:17:31,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:17:31,363 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:31,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:17:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:34,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 204 states and 291 transitions. [2021-10-29 04:17:34,974 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 291 transitions. [2021-10-29 04:17:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:17:34,975 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:34,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 04:17:37,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:37,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 207 states and 297 transitions. [2021-10-29 04:17:37,460 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2021-10-29 04:17:37,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:17:37,461 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:37,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:38,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 210 states and 303 transitions. [2021-10-29 04:17:41,048 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 303 transitions. [2021-10-29 04:17:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:17:41,049 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:41,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:42,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:42,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 211 states and 305 transitions. [2021-10-29 04:17:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 305 transitions. [2021-10-29 04:17:42,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:17:42,130 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:42,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:42,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 213 states and 308 transitions. [2021-10-29 04:17:43,966 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 308 transitions. [2021-10-29 04:17:43,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:17:43,967 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:43,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:45,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 218 states and 317 transitions. [2021-10-29 04:17:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 317 transitions. [2021-10-29 04:17:45,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:17:45,306 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:45,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:53,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:53,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 223 states and 328 transitions. [2021-10-29 04:17:53,322 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 328 transitions. [2021-10-29 04:17:53,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:17:53,323 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:53,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:54,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 225 states and 330 transitions. [2021-10-29 04:17:56,371 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 330 transitions. [2021-10-29 04:17:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:17:56,372 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:56,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:17:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:17:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:17:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:17:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 231 states and 345 transitions. [2021-10-29 04:17:59,982 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 345 transitions. [2021-10-29 04:17:59,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:17:59,982 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:17:59,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:04,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 237 states and 360 transitions. [2021-10-29 04:18:04,764 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2021-10-29 04:18:04,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:18:04,765 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:04,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:05,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:07,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 239 states and 362 transitions. [2021-10-29 04:18:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 362 transitions. [2021-10-29 04:18:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:18:07,720 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:07,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:09,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:09,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 240 states and 364 transitions. [2021-10-29 04:18:09,531 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 364 transitions. [2021-10-29 04:18:09,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:18:09,531 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:09,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:20,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:20,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 246 states and 378 transitions. [2021-10-29 04:18:20,381 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 378 transitions. [2021-10-29 04:18:20,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:18:20,382 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:20,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 261 states and 405 transitions. [2021-10-29 04:18:35,760 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 405 transitions. [2021-10-29 04:18:35,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:18:35,761 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:35,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:36,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:44,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:44,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 268 states and 423 transitions. [2021-10-29 04:18:44,487 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 423 transitions. [2021-10-29 04:18:44,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:18:44,488 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:44,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:45,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:18:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:18:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 275 states and 441 transitions. [2021-10-29 04:18:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 441 transitions. [2021-10-29 04:18:55,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:18:55,667 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:18:55,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:18:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:18:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:19:05,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:19:05,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 279 states and 453 transitions. [2021-10-29 04:19:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 453 transitions. [2021-10-29 04:19:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:19:05,249 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:19:05,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:19:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:19:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:19:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:19:08,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 278 states and 452 transitions. [2021-10-29 04:19:08,812 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 452 transitions. [2021-10-29 04:19:08,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:19:08,812 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:19:08,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:19:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:19:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:19:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:19:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 279 states and 454 transitions. [2021-10-29 04:19:10,207 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 454 transitions. [2021-10-29 04:19:10,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:19:10,207 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:19:10,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:19:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:19:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:19:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:19:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 281 states and 457 transitions. [2021-10-29 04:19:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 457 transitions. [2021-10-29 04:19:11,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:19:11,849 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:19:11,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:19:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:19:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:19:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:19:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 297 states and 500 transitions. [2021-10-29 04:19:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 500 transitions. [2021-10-29 04:19:34,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:19:34,721 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:19:34,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:19:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:19:34,754 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:19:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:19:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:19:34,936 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:19:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:19:35,062 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 51 iterations. [2021-10-29 04:19:35,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:19:35 ImpRootNode [2021-10-29 04:19:35,126 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:19:35,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:19:35,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:19:35,127 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:19:35,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:16:46" (3/4) ... [2021-10-29 04:19:35,130 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:19:35,251 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:19:35,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:19:35,254 INFO L168 Benchmark]: Toolchain (without parser) took 171243.86 ms. Allocated memory was 81.8 MB in the beginning and 1.0 GB in the end (delta: 954.2 MB). Free memory was 46.3 MB in the beginning and 598.1 MB in the end (delta: -551.8 MB). Peak memory consumption was 403.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:19:35,255 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 81.8 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:19:35,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.61 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 46.1 MB in the beginning and 69.1 MB in the end (delta: -22.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:19:35,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.88 ms. Allocated memory is still 100.7 MB. Free memory was 69.1 MB in the beginning and 66.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:19:35,280 INFO L168 Benchmark]: Boogie Preprocessor took 104.20 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 64.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:19:35,281 INFO L168 Benchmark]: RCFGBuilder took 1389.80 ms. Allocated memory is still 100.7 MB. Free memory was 64.4 MB in the beginning and 73.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:19:35,282 INFO L168 Benchmark]: CodeCheck took 168765.24 ms. Allocated memory was 100.7 MB in the beginning and 1.0 GB in the end (delta: 935.3 MB). Free memory was 73.2 MB in the beginning and 602.3 MB in the end (delta: -529.1 MB). Peak memory consumption was 407.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:19:35,283 INFO L168 Benchmark]: Witness Printer took 125.76 ms. Allocated memory is still 1.0 GB. Free memory was 602.3 MB in the beginning and 598.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:19:35,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 121 locations, 70 error locations. Started 1 CEGAR loops. OverallTime: 168.6s, OverallIterations: 51, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 85710848 SDtfs, 1002820550 SDslu, -264117848 SDs, 0 SdLazy, 1959413532 SolverSat, -1274096770 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5897 GetRequests, 4916 SyntacticMatches, 197 SemanticMatches, 784 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295894 ImplicationChecksByTransitivity, 161.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 24.1s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 5301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 50 InterpolantComputations, 44 PerfectInterpolantSequences, 30/54 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 590]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L564] struct list_head gl_list = { &(gl_list), &(gl_list) }; [L567] struct node *node = malloc(sizeof *node); [L568] COND FALSE !(!node) VAL [gl_list={22309:0}] [L570] node->value = value [L547] head->next [L535] next->prev = new VAL [gl_list={22309:0}] [L536] new->next = next VAL [gl_list={22309:0}] [L537] new->prev = prev VAL [gl_list={22309:0}] [L538] prev->next = new [L578] COND FALSE !(__VERIFIER_nondet_int()) [L529] EXPR head->next [L529] return head->next == head; [L613] COND FALSE !(list_empty(&gl_list)) [L615] struct list_head dst = { &(dst), &(dst) }; [L616] struct list_head *max_pos; VAL [gl_list={22309:0}] [L594] struct list_head *pos, *max_pos = ((void *)0); [L595] int max; [L529] EXPR head->next [L529] return head->next == head; [L596] COND FALSE !(list_empty(&gl_list)) [L599] EXPR gl_list.next [L599] max_pos = gl_list.next [L589] struct node *entry = ((struct node *)((char *)(head)-(unsigned long)(&((struct node *)0)->linkage))); VAL [gl_list={22309:0}] [L590] EXPR entry->value [L590] return entry->value; [L600] max = val_from_node(max_pos) [L602] EXPR (max_pos)->next [L602] pos = (max_pos)->next [L602] COND TRUE pos != (max_pos) [L589] struct node *entry = ((struct node *)((char *)(head)-(unsigned long)(&((struct node *)0)->linkage))); VAL [gl_list={22309:0}] [L590] entry->value * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 81.8 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 723.61 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 46.1 MB in the beginning and 69.1 MB in the end (delta: -22.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.88 ms. Allocated memory is still 100.7 MB. Free memory was 69.1 MB in the beginning and 66.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 104.20 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 64.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1389.80 ms. Allocated memory is still 100.7 MB. Free memory was 64.4 MB in the beginning and 73.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. * CodeCheck took 168765.24 ms. Allocated memory was 100.7 MB in the beginning and 1.0 GB in the end (delta: 935.3 MB). Free memory was 73.2 MB in the beginning and 602.3 MB in the end (delta: -529.1 MB). Peak memory consumption was 407.8 MB. Max. memory is 16.1 GB. * Witness Printer took 125.76 ms. Allocated memory is still 1.0 GB. Free memory was 602.3 MB in the beginning and 598.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:19:35,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_151750db-9443-4001-960b-ed137a694992/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...