./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4 --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 d63924edab54dab3adf6fc30d0dae54d46ed57e9ae48bc8d03de12421cfd3603 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 18:16:01,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:16:01,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:16:01,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:16:01,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:16:01,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:16:01,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:16:01,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:16:01,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:16:01,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:16:01,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:16:01,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:16:01,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:16:01,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:16:01,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:16:01,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:16:01,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:16:01,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:16:01,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:16:01,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:16:01,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:16:01,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:16:01,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:16:01,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:16:01,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:16:01,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:16:01,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:16:01,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:16:01,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:16:01,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:16:01,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:16:01,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:16:01,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:16:01,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:16:01,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:16:01,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:16:01,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:16:01,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:16:01,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:16:01,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:16:01,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:16:01,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 18:16:01,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:16:01,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:16:01,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 18:16:01,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 18:16:01,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:16:01,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:16:01,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:16:01,918 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 18:16:01,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:16:01,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 18:16:01,919 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:16:01,920 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:16:01,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:16:01,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:16:01,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:16:01,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:16:01,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 18:16:01,920 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:16:01,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:16:01,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 18:16:01,921 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_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63924edab54dab3adf6fc30d0dae54d46ed57e9ae48bc8d03de12421cfd3603 [2022-12-14 18:16:02,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:16:02,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:16:02,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:16:02,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:16:02,113 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:16:02,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2022-12-14 18:16:04,563 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:16:04,734 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:16:04,734 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2022-12-14 18:16:04,739 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/data/0a0395f33/b5bac20fbf7944be9e20a4a8d2f414df/FLAG375bf382e [2022-12-14 18:16:05,144 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/data/0a0395f33/b5bac20fbf7944be9e20a4a8d2f414df [2022-12-14 18:16:05,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:16:05,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:16:05,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:16:05,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:16:05,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:16:05,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d75ce85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05, skipping insertion in model container [2022-12-14 18:16:05,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:16:05,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:16:05,276 WARN L237 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_913bca15-1364-45ad-96c9-5af6c14e1466/sv-benchmarks/c/loop-lit/cggmp2005_variant.i[895,908] [2022-12-14 18:16:05,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:16:05,290 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:16:05,298 WARN L237 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_913bca15-1364-45ad-96c9-5af6c14e1466/sv-benchmarks/c/loop-lit/cggmp2005_variant.i[895,908] [2022-12-14 18:16:05,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:16:05,310 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:16:05,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05 WrapperNode [2022-12-14 18:16:05,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:16:05,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:16:05,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:16:05,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:16:05,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,332 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-12-14 18:16:05,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:16:05,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:16:05,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:16:05,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:16:05,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:16:05,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:16:05,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:16:05,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:16:05,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:16:05,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:16:05,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:16:05,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:16:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 18:16:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 18:16:05,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:16:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:16:05,452 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:16:05,454 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:16:05,529 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:16:05,547 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:16:05,547 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 18:16:05,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:16:05 BoogieIcfgContainer [2022-12-14 18:16:05,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 18:16:05,551 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 18:16:05,551 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 18:16:05,558 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 18:16:05,558 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:16:05" (1/1) ... [2022-12-14 18:16:05,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 18:16:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:16:05,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-12-14 18:16:05,606 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-12-14 18:16:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 18:16:05,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:16:05,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:16:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:16:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:16:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:16:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-12-14 18:16:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-12-14 18:16:05,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 18:16:05,751 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:16:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:16:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:16:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:16:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:16:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2022-12-14 18:16:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-12-14 18:16:06,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 18:16:06,159 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:16:06,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:16:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:16:06,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:16:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:16:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2022-12-14 18:16:06,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2022-12-14 18:16:06,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 18:16:06,584 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-12-14 18:16:06,589 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-12-14 18:16:06,616 INFO L560 CodeCheckObserver]: Invariant with dag size 18 [2022-12-14 18:16:06,623 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 18:16:06,624 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 18:16:06,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 06:16:06 ImpRootNode [2022-12-14 18:16:06,624 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 18:16:06,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 18:16:06,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 18:16:06,625 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 18:16:06,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:16:05" (3/4) ... [2022-12-14 18:16:06,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 18:16:06,634 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 18:16:06,634 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 18:16:06,635 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 18:16:06,635 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 18:16:06,658 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 18:16:06,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 18:16:06,659 INFO L158 Benchmark]: Toolchain (without parser) took 1508.92ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 119.9MB in the beginning and 126.9MB in the end (delta: -7.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-12-14 18:16:06,659 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:16:06,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.33ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 109.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 18:16:06,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.45ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 108.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:16:06,660 INFO L158 Benchmark]: Boogie Preprocessor took 12.22ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 107.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:16:06,660 INFO L158 Benchmark]: RCFGBuilder took 204.64ms. Allocated memory is still 155.2MB. Free memory was 107.3MB in the beginning and 97.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 18:16:06,660 INFO L158 Benchmark]: CodeCheck took 1073.42ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 97.3MB in the beginning and 129.9MB in the end (delta: -32.6MB). Peak memory consumption was 265.7kB. Max. memory is 16.1GB. [2022-12-14 18:16:06,661 INFO L158 Benchmark]: Witness Printer took 33.27ms. Allocated memory is still 186.6MB. Free memory was 129.9MB in the beginning and 126.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:16:06,662 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 19 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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: 19]: 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: ((2 * mid + lo <= hi && !(mid <= 0)) && hi <= 2 * mid + lo) || ((lo < hi + 1 && mid <= 0) && hi <= lo) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.33ms. Allocated memory is still 155.2MB. Free memory was 119.9MB in the beginning and 109.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.45ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 108.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.22ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 107.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 204.64ms. Allocated memory is still 155.2MB. Free memory was 107.3MB in the beginning and 97.3MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1073.42ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 97.3MB in the beginning and 129.9MB in the end (delta: -32.6MB). Peak memory consumption was 265.7kB. Max. memory is 16.1GB. * Witness Printer took 33.27ms. Allocated memory is still 186.6MB. Free memory was 129.9MB in the beginning and 126.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 18:16:06,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913bca15-1364-45ad-96c9-5af6c14e1466/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE