./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array20_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array20_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ea5bfa8a156bc44b081b7e322054bf4f8b50233fa79918ee2b9ae09354893d3a --- 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-b5237d8 [2022-11-21 23:51:22,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:51:22,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:51:22,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:51:22,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:51:22,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:51:22,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:51:22,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:51:22,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:51:22,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:51:22,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:51:22,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:51:22,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:51:22,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:51:22,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:51:22,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:51:22,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:51:22,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:51:22,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:51:22,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:51:22,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:51:22,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:51:22,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:51:22,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:51:22,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:51:22,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:51:22,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:51:22,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:51:22,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:51:22,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:51:22,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:51:22,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:51:22,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:51:22,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:51:22,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:51:22,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:51:22,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:51:22,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:51:22,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:51:22,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:51:22,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:51:22,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:51:22,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:51:22,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:51:22,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:51:22,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:51:22,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:51:22,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:51:22,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:51:22,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:51:22,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:51:22,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:51:22,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:51:22,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:51:22,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:51:22,453 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:51:22,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:51:22,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:51:22,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:51:22,454 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:51:22,454 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:51:22,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:51:22,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:51:22,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:51:22,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:51:22,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:51:22,456 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:51:22,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:51:22,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:51:22,456 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_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea5bfa8a156bc44b081b7e322054bf4f8b50233fa79918ee2b9ae09354893d3a [2022-11-21 23:51:22,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:51:22,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:51:22,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:51:22,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:51:22,771 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:51:22,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-15/array20_alloca.i [2022-11-21 23:51:25,762 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:51:26,057 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:51:26,057 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/sv-benchmarks/c/termination-15/array20_alloca.i [2022-11-21 23:51:26,067 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/data/b286f506d/0b79a56a6ebd47188b1c44416448bd2a/FLAG575d49432 [2022-11-21 23:51:26,084 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/data/b286f506d/0b79a56a6ebd47188b1c44416448bd2a [2022-11-21 23:51:26,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:51:26,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:51:26,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:51:26,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:51:26,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:51:26,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54a1c429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26, skipping insertion in model container [2022-11-21 23:51:26,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:51:26,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:51:26,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:51:26,552 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:51:26,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:51:26,652 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:51:26,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26 WrapperNode [2022-11-21 23:51:26,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:51:26,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:51:26,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:51:26,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:51:26,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,692 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-11-21 23:51:26,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:51:26,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:51:26,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:51:26,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:51:26,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,713 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:51:26,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:51:26,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:51:26,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:51:26,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:51:26" (1/1) ... [2022-11-21 23:51:26,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:51:26,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:51:26,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:51:26,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:51:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 23:51:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 23:51:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 23:51:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:51:26,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:51:26,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:51:26,908 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:51:26,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:51:27,054 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:51:27,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:51:27,104 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 23:51:27,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:51:27 BoogieIcfgContainer [2022-11-21 23:51:27,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:51:27,108 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:51:27,108 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:51:27,129 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:51:27,130 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:51:27" (1/1) ... [2022-11-21 23:51:27,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:51:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-11-21 23:51:27,222 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-21 23:51:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 23:51:27,245 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2022-11-21 23:51:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2022-11-21 23:51:27,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 23:51:27,679 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:27,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:27,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-11-21 23:51:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-21 23:51:27,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 23:51:27,897 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:27,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:27,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 23:51:27,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:28,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2022-11-21 23:51:28,177 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2022-11-21 23:51:28,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 23:51:28,177 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2022-11-21 23:51:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2022-11-21 23:51:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:51:28,799 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:28,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2022-11-21 23:51:29,164 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2022-11-21 23:51:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:51:29,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:29,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:29,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 23:51:29,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2022-11-21 23:51:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2022-11-21 23:51:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 23:51:29,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:29,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:30,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:30,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 29 states and 48 transitions. [2022-11-21 23:51:30,168 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2022-11-21 23:51:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 23:51:30,168 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:30,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:30,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-21 23:51:30,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:30,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-11-21 23:51:30,370 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:30,372 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-11-21 23:51:30,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:30,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-21 23:51:30,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:30,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 23:51:30,656 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:30,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-21 23:51:30,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2022-11-21 23:51:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2022-11-21 23:51:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 23:51:31,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:31,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:31,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-21 23:51:31,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:32,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-11-21 23:51:32,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-21 23:51:32,381 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 23:51:32,384 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:32,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-21 23:51:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 63 transitions. [2022-11-21 23:51:34,191 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2022-11-21 23:51:34,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 23:51:34,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:34,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 38 states and 73 transitions. [2022-11-21 23:51:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 73 transitions. [2022-11-21 23:51:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 23:51:35,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:35,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:35,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-21 23:51:35,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:35,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-11-21 23:51:35,631 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:35,632 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-11-21 23:51:35,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:35,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-21 23:51:35,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:36,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 23:51:36,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 72 [2022-11-21 23:51:36,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 17 [2022-11-21 23:51:36,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-21 23:51:36,081 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:36,082 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-11-21 23:51:36,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-21 23:51:36,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 23:51:36,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:36,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-21 23:51:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:37,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 38 states and 72 transitions. [2022-11-21 23:51:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 72 transitions. [2022-11-21 23:51:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 23:51:37,558 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:37,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-21 23:51:37,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:37,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-11-21 23:51:37,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-21 23:51:37,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:37,742 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:37,744 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-11-21 23:51:37,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:38,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 23:51:38,329 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:38,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-21 23:51:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 23:51:41,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 42 states and 84 transitions. [2022-11-21 23:51:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 84 transitions. [2022-11-21 23:51:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 23:51:41,014 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:41,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:41,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-21 23:51:41,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:41,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-11-21 23:51:41,134 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:41,135 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-11-21 23:51:41,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:41,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-21 23:51:41,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 23:51:41,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 72 [2022-11-21 23:51:41,578 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:41,579 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2022-11-21 23:51:41,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-21 23:51:41,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 23:51:41,735 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:41,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-21 23:51:41,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:43,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:43,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 42 states and 83 transitions. [2022-11-21 23:51:43,234 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 83 transitions. [2022-11-21 23:51:43,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 23:51:43,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:43,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:43,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-21 23:51:43,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:43,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-11-21 23:51:43,371 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:43,372 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-11-21 23:51:43,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-21 23:51:43,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:44,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 23:51:44,004 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:44,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-21 23:51:44,062 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 23:51:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 42 states and 82 transitions. [2022-11-21 23:51:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 82 transitions. [2022-11-21 23:51:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 23:51:45,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:45,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 46 states and 93 transitions. [2022-11-21 23:51:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 93 transitions. [2022-11-21 23:51:47,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 23:51:47,570 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:47,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:51:47,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-21 23:51:47,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 23:51:47,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 47 [2022-11-21 23:51:47,721 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:47,722 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2022-11-21 23:51:47,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:47,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2022-11-21 23:51:47,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-21 23:51:48,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-11-21 23:51:48,115 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:48,116 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2022-11-21 23:51:48,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-11-21 23:51:48,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 74 [2022-11-21 23:51:48,495 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:48,496 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2022-11-21 23:51:48,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 16 [2022-11-21 23:51:48,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 23:51:48,757 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 23:51:48,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 10 [2022-11-21 23:51:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:51:50,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:51:50,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 46 states and 92 transitions. [2022-11-21 23:51:50,395 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 92 transitions. [2022-11-21 23:51:50,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 23:51:50,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:51:50,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:51:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:51:50,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 23:51:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 23:51:50,485 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 17 iterations. [2022-11-21 23:51:50,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:51:50 ImpRootNode [2022-11-21 23:51:50,518 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:51:50,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:51:50,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:51:50,519 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:51:50,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:51:27" (3/4) ... [2022-11-21 23:51:50,522 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 23:51:50,577 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f5d12e-d00b-4ec3-8724-7ea7ad8e1ae8/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:51:50,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:51:50,594 INFO L158 Benchmark]: Toolchain (without parser) took 24505.52ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 128.5MB in the beginning and 121.9MB in the end (delta: 6.5MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2022-11-21 23:51:50,594 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 127.9MB. Free memory was 71.8MB in the beginning and 71.7MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:51:50,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.93ms. Allocated memory is still 161.5MB. Free memory was 127.7MB in the beginning and 111.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 23:51:50,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.45ms. Allocated memory is still 161.5MB. Free memory was 111.0MB in the beginning and 108.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:51:50,596 INFO L158 Benchmark]: Boogie Preprocessor took 23.10ms. Allocated memory is still 161.5MB. Free memory was 108.8MB in the beginning and 107.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:51:50,596 INFO L158 Benchmark]: RCFGBuilder took 389.71ms. Allocated memory is still 161.5MB. Free memory was 107.5MB in the beginning and 94.2MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 23:51:50,597 INFO L158 Benchmark]: CodeCheck took 23410.70ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 94.2MB in the beginning and 125.0MB in the end (delta: -30.8MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-11-21 23:51:50,598 INFO L158 Benchmark]: Witness Printer took 74.13ms. Allocated memory is still 195.0MB. Free memory was 125.0MB in the beginning and 121.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:51:50,600 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, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 23.3s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 599 SdHoareTripleChecker+Valid, 7.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 482 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 678 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2902 IncrementalHoareTripleChecker+Invalid, 3580 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 678 mSolverCounterUnsat, 28 mSDtfsCounter, 2902 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1761 GetRequests, 1446 SyntacticMatches, 111 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 8 DeprecatedPredicates, 21557 ImplicationChecksByTransitivity, 18.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 158 ConstructedInterpolants, 38 QuantifiedInterpolants, 2076 SizeOfPredicates, 60 NumberOfNonLiveVariables, 674 ConjunctsInSsa, 187 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 2/125 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, length=3] [L369] COND FALSE !(!arr) [L370] i=0 VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, i=0, length=3] [L370] COND TRUE i