./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4 --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 64bit --witnessprinter.graph.data.programhash 4f531da4514da78f664dbd663145b26ee24930c7e93acdc31160c6cc4e4d5de8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 03:31:36,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 03:31:36,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 03:31:36,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 03:31:36,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 03:31:36,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 03:31:36,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 03:31:36,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 03:31:36,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 03:31:36,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 03:31:36,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 03:31:36,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 03:31:36,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 03:31:36,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 03:31:36,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 03:31:36,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 03:31:36,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 03:31:36,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 03:31:36,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 03:31:36,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 03:31:36,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 03:31:36,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 03:31:36,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 03:31:36,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 03:31:36,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 03:31:36,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 03:31:36,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 03:31:36,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 03:31:36,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 03:31:36,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 03:31:36,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 03:31:36,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 03:31:36,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 03:31:36,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 03:31:36,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 03:31:36,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 03:31:36,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 03:31:36,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 03:31:36,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 03:31:36,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 03:31:36,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 03:31:36,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2022-12-15 03:31:36,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 03:31:36,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 03:31:36,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 03:31:36,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 03:31:36,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 03:31:36,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 03:31:36,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 03:31:36,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 03:31:36,150 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-15 03:31:36,151 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-15 03:31:36,151 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-15 03:31:36,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 03:31:36,151 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 03:31:36,151 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 03:31:36,151 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 03:31:36,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 03:31:36,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:31:36,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 03:31:36,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 03:31:36,152 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 03:31:36,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 03:31:36,153 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_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f531da4514da78f664dbd663145b26ee24930c7e93acdc31160c6cc4e4d5de8 [2022-12-15 03:31:36,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 03:31:36,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 03:31:36,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 03:31:36,371 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 03:31:36,372 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 03:31:36,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i [2022-12-15 03:31:38,996 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 03:31:39,149 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 03:31:39,150 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i [2022-12-15 03:31:39,154 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/data/3e8fbc0c2/97b0323fec3d4d529050808e8bd5598e/FLAG36017df15 [2022-12-15 03:31:39,165 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/data/3e8fbc0c2/97b0323fec3d4d529050808e8bd5598e [2022-12-15 03:31:39,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 03:31:39,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 03:31:39,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 03:31:39,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 03:31:39,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 03:31:39,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2c440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39, skipping insertion in model container [2022-12-15 03:31:39,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 03:31:39,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 03:31:39,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:31:39,315 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 03:31:39,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 03:31:39,341 INFO L208 MainTranslator]: Completed translation [2022-12-15 03:31:39,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39 WrapperNode [2022-12-15 03:31:39,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 03:31:39,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 03:31:39,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 03:31:39,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 03:31:39,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,369 INFO L138 Inliner]: procedures = 13, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2022-12-15 03:31:39,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 03:31:39,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 03:31:39,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 03:31:39,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 03:31:39,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 03:31:39,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 03:31:39,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 03:31:39,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 03:31:39,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 03:31:39,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 03:31:39,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 03:31:39,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 03:31:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure rec_strcopy_helper [2022-12-15 03:31:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_strcopy_helper [2022-12-15 03:31:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 03:31:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-15 03:31:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 03:31:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 03:31:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 03:31:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 03:31:39,521 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 03:31:39,522 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 03:31:39,678 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 03:31:39,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 03:31:39,722 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-15 03:31:39,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:31:39 BoogieIcfgContainer [2022-12-15 03:31:39,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 03:31:39,725 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 03:31:39,725 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 03:31:39,735 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 03:31:39,735 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:31:39" (1/1) ... [2022-12-15 03:31:39,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 03:31:39,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 35 states and 36 transitions. [2022-12-15 03:31:39,792 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-12-15 03:31:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-15 03:31:39,793 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:39,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:39,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 34 states and 35 transitions. [2022-12-15 03:31:39,988 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-12-15 03:31:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-15 03:31:39,989 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:39,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:40,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:40,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 33 states and 34 transitions. [2022-12-15 03:31:40,321 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-12-15 03:31:40,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:31:40,322 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:40,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:40,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:40,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 35 states and 37 transitions. [2022-12-15 03:31:40,567 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-12-15 03:31:40,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 03:31:40,567 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:40,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:41,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:41,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 40 transitions. [2022-12-15 03:31:41,214 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-12-15 03:31:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 03:31:41,214 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:41,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 40 states and 45 transitions. [2022-12-15 03:31:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-12-15 03:31:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 03:31:41,809 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:41,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:43,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:43,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 43 states and 50 transitions. [2022-12-15 03:31:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2022-12-15 03:31:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 03:31:43,127 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:43,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:43,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 44 states and 52 transitions. [2022-12-15 03:31:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-12-15 03:31:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 03:31:43,312 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:43,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:43,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 46 states and 55 transitions. [2022-12-15 03:31:43,680 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-12-15 03:31:43,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-15 03:31:43,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:43,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 54 states and 69 transitions. [2022-12-15 03:31:46,514 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2022-12-15 03:31:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-15 03:31:46,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:46,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:46,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 54 states and 68 transitions. [2022-12-15 03:31:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-12-15 03:31:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 03:31:47,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:47,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:48,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:48,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 56 states and 70 transitions. [2022-12-15 03:31:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2022-12-15 03:31:48,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 03:31:48,408 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:48,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:49,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:53,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 65 states and 85 transitions. [2022-12-15 03:31:53,877 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2022-12-15 03:31:53,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-15 03:31:53,878 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:53,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:54,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 64 states and 84 transitions. [2022-12-15 03:31:54,610 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 84 transitions. [2022-12-15 03:31:54,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 03:31:54,611 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:54,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 03:31:54,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:54,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 62 states and 81 transitions. [2022-12-15 03:31:54,962 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2022-12-15 03:31:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 03:31:54,963 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:54,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-15 03:31:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 63 states and 82 transitions. [2022-12-15 03:31:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2022-12-15 03:31:55,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-15 03:31:55,734 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:31:57,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:31:57,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 62 states and 81 transitions. [2022-12-15 03:31:57,714 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2022-12-15 03:31:57,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-15 03:31:57,714 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:31:57,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:31:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:31:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:01,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 65 states and 93 transitions. [2022-12-15 03:32:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2022-12-15 03:32:01,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-15 03:32:01,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:01,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:02,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:03,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 64 states and 92 transitions. [2022-12-15 03:32:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 92 transitions. [2022-12-15 03:32:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 03:32:03,880 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:03,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:14,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 75 states and 118 transitions. [2022-12-15 03:32:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2022-12-15 03:32:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 03:32:14,600 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:14,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-15 03:32:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 75 states and 115 transitions. [2022-12-15 03:32:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 115 transitions. [2022-12-15 03:32:15,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 03:32:15,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:15,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 81 states and 124 transitions. [2022-12-15 03:32:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 124 transitions. [2022-12-15 03:32:22,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-15 03:32:22,786 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:22,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:27,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 80 states and 123 transitions. [2022-12-15 03:32:27,045 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 123 transitions. [2022-12-15 03:32:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 03:32:27,045 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:27,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 85 states and 135 transitions. [2022-12-15 03:32:34,870 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 135 transitions. [2022-12-15 03:32:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 03:32:34,870 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:34,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:34,902 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-15 03:32:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 85 states and 134 transitions. [2022-12-15 03:32:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 134 transitions. [2022-12-15 03:32:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-15 03:32:36,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 84 states and 133 transitions. [2022-12-15 03:32:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 133 transitions. [2022-12-15 03:32:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-15 03:32:42,953 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:42,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:32:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 83 states and 132 transitions. [2022-12-15 03:32:51,634 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 132 transitions. [2022-12-15 03:32:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-15 03:32:51,634 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:51,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:51,670 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-15 03:32:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:32:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 80 states and 126 transitions. [2022-12-15 03:32:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2022-12-15 03:32:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-15 03:32:53,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:32:53,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:32:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:32:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:33:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:33:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 97 states and 161 transitions. [2022-12-15 03:33:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 161 transitions. [2022-12-15 03:33:17,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-15 03:33:17,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:33:17,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:33:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:33:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:33:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:33:29,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 103 states and 177 transitions. [2022-12-15 03:33:29,561 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 177 transitions. [2022-12-15 03:33:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-15 03:33:29,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 03:33:29,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 03:33:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 03:33:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 03:33:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 03:33:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 33 states and 40 transitions. [2022-12-15 03:33:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-12-15 03:33:36,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 03:33:36,774 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2022-12-15 03:33:36,780 INFO L754 CodeCheckObserver]: All specifications hold 15 specifications checked. All of them hold [2022-12-15 03:33:37,353 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 03:33:37,356 INFO L560 CodeCheckObserver]: Invariant with dag size 28 [2022-12-15 03:33:37,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 03:33:37 ImpRootNode [2022-12-15 03:33:37,363 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 03:33:37,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 03:33:37,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 03:33:37,363 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 03:33:37,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 03:31:39" (3/4) ... [2022-12-15 03:33:37,366 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 03:33:37,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure rec_strcopy_helper [2022-12-15 03:33:37,372 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-15 03:33:37,373 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-15 03:33:37,373 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-15 03:33:37,373 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 03:33:37,390 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((length <= 2147483647 && nondetString + 1 <= unknown-#StackHeapBarrier-unknown) && \valid[nondetString] == 1) && nondetString == 0) && length == length) && \valid[nondetString := 0] == \old(unknown-main_\old_#valid#1-unknown)) && length == 18446744073709551616 * (length / 18446744073709551616) + unknown-#length-unknown[nondetString]) && 1 <= length [2022-12-15 03:33:37,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 03:33:37,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 03:33:37,401 INFO L158 Benchmark]: Toolchain (without parser) took 118231.91ms. Allocated memory was 142.6MB in the beginning and 373.3MB in the end (delta: 230.7MB). Free memory was 113.2MB in the beginning and 212.8MB in the end (delta: -99.7MB). Peak memory consumption was 133.8MB. Max. memory is 16.1GB. [2022-12-15 03:33:37,401 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 03:33:37,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.63ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 103.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 03:33:37,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.20ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 101.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:33:37,402 INFO L158 Benchmark]: Boogie Preprocessor took 19.93ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 03:33:37,402 INFO L158 Benchmark]: RCFGBuilder took 333.61ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 85.2MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 03:33:37,403 INFO L158 Benchmark]: CodeCheck took 117637.85ms. Allocated memory was 142.6MB in the beginning and 373.3MB in the end (delta: 230.7MB). Free memory was 84.9MB in the beginning and 214.9MB in the end (delta: -130.0MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2022-12-15 03:33:37,403 INFO L158 Benchmark]: Witness Printer took 36.76ms. Allocated memory is still 373.3MB. Free memory was 214.9MB in the beginning and 212.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 03:33:37,406 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 2 procedures, 35 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 117.0s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2744 SdHoareTripleChecker+Valid, 17.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1940 mSDsluCounter, 1084 SdHoareTripleChecker+Invalid, 15.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 488 mSDsCounter, 3945 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13179 IncrementalHoareTripleChecker+Invalid, 17124 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3945 mSolverCounterUnsat, 596 mSDtfsCounter, 13179 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4713 GetRequests, 3902 SyntacticMatches, 83 SemanticMatches, 728 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256662 ImplicationChecksByTransitivity, 111.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 21.8s InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 373 ConstructedInterpolants, 0 QuantifiedInterpolants, 4573 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 22 PerfectInterpolantSequences, 80/191 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 43]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 43]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 43]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 44]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 44]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 44]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 33]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((length <= 2147483647 && nondetString + 1 <= unknown-#StackHeapBarrier-unknown) && \valid[nondetString] == 1) && nondetString == 0) && length == length) && \valid[nondetString := 0] == \old(unknown-main_\old_#valid#1-unknown)) && length == 18446744073709551616 * (length / 18446744073709551616) + unknown-#length-unknown[nondetString]) && 1 <= length * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.63ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 103.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.20ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 101.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.93ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 333.61ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 85.2MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 117637.85ms. Allocated memory was 142.6MB in the beginning and 373.3MB in the end (delta: 230.7MB). Free memory was 84.9MB in the beginning and 214.9MB in the end (delta: -130.0MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. * Witness Printer took 36.76ms. Allocated memory is still 373.3MB. Free memory was 214.9MB in the beginning and 212.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 03:33:37,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff6663bf-9967-4a85-9d89-506f25af53c4/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE