./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB --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 6b9a965f73c3cec90a7bf30e1abcce707e2acf95b41bbd45e0beb5b55c7fe39d --- 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-dbf71c6-m [2022-10-17 16:39:07,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:39:07,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:39:07,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:39:07,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:39:07,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:39:07,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:39:07,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:39:07,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:39:07,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:39:07,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:39:07,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:39:07,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:39:07,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:39:07,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:39:07,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:39:07,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:39:07,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:39:07,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:39:07,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:39:07,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:39:07,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:39:07,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:39:07,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:39:07,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:39:07,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:39:07,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:39:07,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:39:07,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:39:07,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:39:07,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:39:07,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:39:07,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:39:07,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:39:07,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:39:07,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:39:07,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:39:07,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:39:07,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:39:07,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:39:07,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:39:07,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:39:07,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:39:07,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:39:07,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:39:07,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:39:07,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:39:07,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:39:07,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:39:07,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:39:07,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:39:07,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:39:07,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:39:07,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:39:07,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:39:07,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:39:07,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:39:07,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:39:07,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:39:07,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:39:07,711 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:39:07,712 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:39:07,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:39:07,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:39:07,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:39:07,713 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:39:07,713 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:39:07,713 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:39:07,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:39:07,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:39:07,714 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_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b9a965f73c3cec90a7bf30e1abcce707e2acf95b41bbd45e0beb5b55c7fe39d [2022-10-17 16:39:07,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:39:07,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:39:07,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:39:07,993 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:39:07,994 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:39:07,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2022-10-17 16:39:08,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/data/e5e0edcb1/0e273eb52ec84a1ca4fc83250d4e64fc/FLAGec68c5baa [2022-10-17 16:39:08,547 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:39:08,548 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i [2022-10-17 16:39:08,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/data/e5e0edcb1/0e273eb52ec84a1ca4fc83250d4e64fc/FLAGec68c5baa [2022-10-17 16:39:08,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/data/e5e0edcb1/0e273eb52ec84a1ca4fc83250d4e64fc [2022-10-17 16:39:08,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:39:08,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:39:08,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:39:08,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:39:08,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:39:08,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:39:08" (1/1) ... [2022-10-17 16:39:08,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd32bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:08, skipping insertion in model container [2022-10-17 16:39:08,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:39:08" (1/1) ... [2022-10-17 16:39:08,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:39:08,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:39:09,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2022-10-17 16:39:09,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:39:09,117 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:39:09,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/sv-benchmarks/c/loop-zilu/benchmark04_conjunctive.i[873,886] [2022-10-17 16:39:09,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:39:09,150 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:39:09,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09 WrapperNode [2022-10-17 16:39:09,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:39:09,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:39:09,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:39:09,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:39:09,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,194 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2022-10-17 16:39:09,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:39:09,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:39:09,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:39:09,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:39:09,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,219 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:39:09,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:39:09,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:39:09,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:39:09,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:39:09,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:39:09,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:39:09,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:39:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:39:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:39:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:39:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:39:09,398 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:39:09,401 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:39:09,548 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:39:09,576 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:39:09,576 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:39:09,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:09 BoogieIcfgContainer [2022-10-17 16:39:09,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:39:09,581 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:39:09,581 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:39:09,594 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:39:09,595 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:09" (1/1) ... [2022-10-17 16:39:09,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:39:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-10-17 16:39:09,680 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-10-17 16:39:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:39:09,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:09,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:09,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-10-17 16:39:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-10-17 16:39:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:39:09,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:09,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:10,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:39:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2022-10-17 16:39:10,561 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-10-17 16:39:10,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:39:10,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:39:10,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:39:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:39:10,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:39:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:39:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2022-10-17 16:39:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-10-17 16:39:11,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:39:11,097 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-10-17 16:39:11,112 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:39:11,134 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2022-10-17 16:39:11,149 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:39:11,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:39:11 ImpRootNode [2022-10-17 16:39:11,150 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:39:11,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:39:11,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:39:11,153 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:39:11,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:39:09" (3/4) ... [2022-10-17 16:39:11,158 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:39:11,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 16:39:11,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-10-17 16:39:11,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:39:11,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:39:11,249 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:39:11,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:39:11,258 INFO L158 Benchmark]: Toolchain (without parser) took 2364.56ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.5MB in the end (delta: 11.9MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:11,259 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:39:11,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.45ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 82.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:39:11,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.60ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:11,261 INFO L158 Benchmark]: Boogie Preprocessor took 26.51ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:11,262 INFO L158 Benchmark]: RCFGBuilder took 356.20ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 69.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:39:11,263 INFO L158 Benchmark]: CodeCheck took 1569.46ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 83.0MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:39:11,272 INFO L158 Benchmark]: Witness Printer took 99.61ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 80.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:39:11,275 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 15 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/4 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: 16]: 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: 24]: Loop Invariant Derived loop invariant: (0 <= k && !(j + 1 <= n)) || (j + 1 <= n && n <= j + k) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 55.0MB in the beginning and 55.0MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.45ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 82.4MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.60ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.51ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.20ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 69.6MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1569.46ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 83.0MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 99.61ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 80.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:39:11,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61bf300e-c197-401e-b84c-49ca8c048f3d/bin/ukojak-92XMlrwhuB/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