./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1133d4e628bca1624f90bda56a6327f24f5efa9815c748be39cd9f3813ed8b8e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:34:43,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:34:43,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:34:43,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:34:43,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:34:43,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:34:43,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:34:43,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:34:43,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:34:43,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:34:43,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:34:43,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:34:43,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:34:43,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:34:43,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:34:43,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:34:43,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:34:43,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:34:43,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:34:43,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:34:43,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:34:43,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:34:43,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:34:43,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:34:43,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:34:43,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:34:43,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:34:43,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:34:43,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:34:43,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:34:43,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:34:43,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:34:43,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:34:43,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:34:43,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:34:43,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:34:43,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:34:43,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:34:43,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:34:43,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:34:43,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:34:43,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:34:43,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:34:43,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:34:43,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:34:43,492 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:34:43,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:34:43,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:34:43,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:34:43,494 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:34:43,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:34:43,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:34:43,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:34:43,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:34:43,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:34:43,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:34:43,506 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:34:43,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:34:43,506 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:34:43,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:34:43,506 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:34:43,507 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:34:43,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:34:43,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:34:43,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:34:43,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:34:43,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:34:43,508 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:34:43,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:34:43,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:34:43,509 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_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1133d4e628bca1624f90bda56a6327f24f5efa9815c748be39cd9f3813ed8b8e [2021-11-23 01:34:43,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:34:43,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:34:43,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:34:43,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:34:43,808 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:34:43,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2021-11-23 01:34:43,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/data/20d11c8b5/8570bc3e8e424e4a9282d6bb1774ea2e/FLAGfc1481ed4 [2021-11-23 01:34:44,519 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:34:44,520 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/sv-benchmarks/c/eca-rers2012/Problem14_label00.c [2021-11-23 01:34:44,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/data/20d11c8b5/8570bc3e8e424e4a9282d6bb1774ea2e/FLAGfc1481ed4 [2021-11-23 01:34:44,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/data/20d11c8b5/8570bc3e8e424e4a9282d6bb1774ea2e [2021-11-23 01:34:44,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:34:44,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:34:44,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:34:44,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:34:44,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:34:44,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:44" (1/1) ... [2021-11-23 01:34:44,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f555146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:44, skipping insertion in model container [2021-11-23 01:34:44,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:44" (1/1) ... [2021-11-23 01:34:44,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:34:44,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:34:45,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/sv-benchmarks/c/eca-rers2012/Problem14_label00.c[5469,5482] [2021-11-23 01:34:45,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:34:45,307 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:34:45,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/sv-benchmarks/c/eca-rers2012/Problem14_label00.c[5469,5482] [2021-11-23 01:34:45,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:34:45,533 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:34:45,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45 WrapperNode [2021-11-23 01:34:45,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:34:45,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:34:45,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:34:45,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:34:45,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,663 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-11-23 01:34:45,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:34:45,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:34:45,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:34:45,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:34:45,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:34:45,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:34:45,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:34:45,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:34:45,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:45" (1/1) ... [2021-11-23 01:34:45,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:34:45,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:34:45,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:34:45,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:34:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:34:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:34:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:34:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:34:45,951 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:34:45,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:34:47,378 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:34:50,395 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:34:50,395 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:34:50,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:50 BoogieIcfgContainer [2021-11-23 01:34:50,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:34:50,399 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:34:50,399 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:34:50,410 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:34:50,410 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:50" (1/1) ... [2021-11-23 01:34:50,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:34:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:34:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:34:50,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:34:50,485 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:50,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:34:50,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:50,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:34:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:34:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:34:50,838 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:50,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:51,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:34:51,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:51,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2021-11-23 01:34:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2021-11-23 01:34:51,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:34:51,767 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:51,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:34:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:54,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 52 transitions. [2021-11-23 01:34:54,442 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2021-11-23 01:34:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:34:54,443 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:54,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 01:34:56,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 28 states and 50 transitions. [2021-11-23 01:34:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 50 transitions. [2021-11-23 01:34:56,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:34:56,634 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2021-11-23 01:34:56,643 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:34:56,941 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2021-11-23 01:34:56,952 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:34:56,953 INFO L560 CodeCheckObserver]: Invariant with dag size 19 [2021-11-23 01:34:56,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:34:56 ImpRootNode [2021-11-23 01:34:56,954 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:34:56,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:34:56,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:34:56,956 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:34:56,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:50" (3/4) ... [2021-11-23 01:34:56,959 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:34:56,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 223 nodes and edges [2021-11-23 01:34:56,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-23 01:34:56,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 01:34:56,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:34:57,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:34:57,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:34:57,202 INFO L158 Benchmark]: Toolchain (without parser) took 12426.93ms. Allocated memory was 100.7MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 70.4MB in the beginning and 1.0GB in the end (delta: -950.3MB). Peak memory consumption was 293.1MB. Max. memory is 16.1GB. [2021-11-23 01:34:57,202 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:34:57,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.76ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 70.1MB in the beginning and 75.9MB in the end (delta: -5.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 01:34:57,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.61ms. Allocated memory is still 121.6MB. Free memory was 75.9MB in the beginning and 66.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:34:57,204 INFO L158 Benchmark]: Boogie Preprocessor took 110.09ms. Allocated memory is still 121.6MB. Free memory was 66.1MB in the beginning and 60.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 01:34:57,204 INFO L158 Benchmark]: RCFGBuilder took 4622.93ms. Allocated memory was 121.6MB in the beginning and 329.3MB in the end (delta: 207.6MB). Free memory was 60.5MB in the beginning and 125.5MB in the end (delta: -65.0MB). Peak memory consumption was 167.3MB. Max. memory is 16.1GB. [2021-11-23 01:34:57,205 INFO L158 Benchmark]: CodeCheck took 6555.33ms. Allocated memory was 329.3MB in the beginning and 679.5MB in the end (delta: 350.2MB). Free memory was 125.5MB in the beginning and 368.2MB in the end (delta: -242.8MB). Peak memory consumption was 107.3MB. Max. memory is 16.1GB. [2021-11-23 01:34:57,206 INFO L158 Benchmark]: Witness Printer took 246.28ms. Allocated memory was 679.5MB in the beginning and 1.1GB in the end (delta: 467.7MB). Free memory was 367.3MB in the beginning and 1.0GB in the end (delta: -653.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:34:57,208 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 254 IncrementalHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 46 mSDtfsCounter, 254 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 395 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 21/34 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: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((5 < a15 || !(a24 == 1)) || a21 <= 6) || a15 <= 4) || 7 < a21) || 0 < a12 + 43 - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((6 <= a15 || !(a24 == 1)) || a21 <= 6) || a15 <= 4) || 8 <= a21) || 0 < a12 + 43 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.76ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 70.1MB in the beginning and 75.9MB in the end (delta: -5.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.61ms. Allocated memory is still 121.6MB. Free memory was 75.9MB in the beginning and 66.1MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.09ms. Allocated memory is still 121.6MB. Free memory was 66.1MB in the beginning and 60.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4622.93ms. Allocated memory was 121.6MB in the beginning and 329.3MB in the end (delta: 207.6MB). Free memory was 60.5MB in the beginning and 125.5MB in the end (delta: -65.0MB). Peak memory consumption was 167.3MB. Max. memory is 16.1GB. * CodeCheck took 6555.33ms. Allocated memory was 329.3MB in the beginning and 679.5MB in the end (delta: 350.2MB). Free memory was 125.5MB in the beginning and 368.2MB in the end (delta: -242.8MB). Peak memory consumption was 107.3MB. Max. memory is 16.1GB. * Witness Printer took 246.28ms. Allocated memory was 679.5MB in the beginning and 1.1GB in the end (delta: 467.7MB). Free memory was 367.3MB in the beginning and 1.0GB in the end (delta: -653.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:34:57,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20b01a06-aae1-49c0-9ed9-353af154ee67/bin/ukojak-LBtLqBUTdQ/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