./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/jain_2-1.c --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_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/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_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/jain_2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/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_f1833b2f-9e38-449f-9653-9c228cb30075/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 92241f3227c0a2a678e533c7e4602bca2cd56efbb9188155527144a0988b4416 --- 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 16:35:22,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:35:22,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:35:22,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:35:22,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:35:22,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:35:22,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:35:22,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:35:22,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:35:22,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:35:22,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:35:22,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:35:22,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:35:22,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:35:22,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:35:22,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:35:22,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:35:22,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:35:22,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:35:22,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:35:22,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:35:22,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:35:22,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:35:22,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:35:22,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:35:22,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:35:22,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:35:22,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:35:22,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:35:22,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:35:22,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:35:22,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:35:22,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:35:22,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:35:22,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:35:22,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:35:22,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:35:22,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:35:22,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:35:22,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:35:22,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:35:22,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:35:22,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:35:22,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:35:22,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:35:22,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:35:22,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:35:22,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:35:22,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:35:22,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:35:22,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:35:22,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:35:22,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:35:22,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:35:22,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:35:22,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:35:22,261 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:35:22,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:35:22,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:35:22,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:35:22,262 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:35:22,262 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:35:22,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:35:22,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:35:22,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:35:22,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:35:22,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:35:22,264 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:35:22,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:35:22,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:35:22,267 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_f1833b2f-9e38-449f-9653-9c228cb30075/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 92241f3227c0a2a678e533c7e4602bca2cd56efbb9188155527144a0988b4416 [2022-10-17 16:35:22,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:35:22,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:35:22,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:35:22,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:35:22,616 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:35:22,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/bitvector/jain_2-1.c [2022-10-17 16:35:22,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/data/0a80dd88a/0293b8973a9e4723b4e0db8e00312cbc/FLAGc1ac5d58d [2022-10-17 16:35:23,122 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:35:23,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/sv-benchmarks/c/bitvector/jain_2-1.c [2022-10-17 16:35:23,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/data/0a80dd88a/0293b8973a9e4723b4e0db8e00312cbc/FLAGc1ac5d58d [2022-10-17 16:35:23,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/data/0a80dd88a/0293b8973a9e4723b4e0db8e00312cbc [2022-10-17 16:35:23,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:35:23,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:35:23,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:35:23,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:35:23,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:35:23,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e00603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23, skipping insertion in model container [2022-10-17 16:35:23,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:35:23,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:35:23,760 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_f1833b2f-9e38-449f-9653-9c228cb30075/sv-benchmarks/c/bitvector/jain_2-1.c[675,688] [2022-10-17 16:35:23,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:35:23,782 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:35:23,794 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_f1833b2f-9e38-449f-9653-9c228cb30075/sv-benchmarks/c/bitvector/jain_2-1.c[675,688] [2022-10-17 16:35:23,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:35:23,810 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:35:23,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23 WrapperNode [2022-10-17 16:35:23,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:35:23,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:35:23,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:35:23,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:35:23,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,843 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-10-17 16:35:23,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:35:23,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:35:23,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:35:23,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:35:23,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,871 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:35:23,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:35:23,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:35:23,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:35:23,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:23" (1/1) ... [2022-10-17 16:35:23,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:35:23,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:35:23,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:35:23,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:35:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:35:23,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:35:23,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:35:23,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:35:24,025 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:35:24,027 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:35:24,124 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:35:24,147 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:35:24,147 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:35:24,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:24 BoogieIcfgContainer [2022-10-17 16:35:24,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:35:24,151 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:35:24,151 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:35:24,161 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:35:24,161 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:24" (1/1) ... [2022-10-17 16:35:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:35:24,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-10-17 16:35:24,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-10-17 16:35:24,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:35:24,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:24,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:24,564 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 16:35:24,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:24,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2022-10-17 16:35:24,656 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-10-17 16:35:24,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:35:24,657 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:24,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:35:25,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:25,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 5 states and 6 transitions. [2022-10-17 16:35:25,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 6 transitions. [2022-10-17 16:35:25,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:35:25,312 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2022-10-17 16:35:25,322 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:35:25,353 INFO L560 CodeCheckObserver]: Invariant with dag size 11 [2022-10-17 16:35:25,363 INFO L560 CodeCheckObserver]: Invariant with dag size 11 [2022-10-17 16:35:25,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:35:25 ImpRootNode [2022-10-17 16:35:25,365 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:35:25,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:35:25,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:35:25,366 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:35:25,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:24" (3/4) ... [2022-10-17 16:35:25,370 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:35:25,380 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 16:35:25,380 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 16:35:25,380 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:35:25,381 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:35:25,418 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:35:25,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:35:25,419 INFO L158 Benchmark]: Toolchain (without parser) took 1882.50ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 54.9MB in the beginning and 81.6MB in the end (delta: -26.7MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-10-17 16:35:25,420 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 94.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:35:25,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.16ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 66.4MB in the end (delta: -11.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:35:25,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.27ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 65.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:35:25,422 INFO L158 Benchmark]: Boogie Preprocessor took 29.37ms. Allocated memory is still 94.4MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:35:25,423 INFO L158 Benchmark]: RCFGBuilder took 274.65ms. Allocated memory is still 94.4MB. Free memory was 64.0MB in the beginning and 54.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:35:25,424 INFO L158 Benchmark]: CodeCheck took 1213.59ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 54.5MB in the beginning and 83.6MB in the end (delta: -29.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-10-17 16:35:25,425 INFO L158 Benchmark]: Witness Printer took 52.52ms. Allocated memory is still 127.9MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:35:25,429 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 2 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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: 27]: Loop Invariant Derived loop invariant: 2 + x <= (-1 * y + 2 + x) / 2 * 2 + y - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 2 + x <= (-1 * y + 2 + x) / 2 * 2 + y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 94.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.16ms. Allocated memory is still 94.4MB. Free memory was 54.7MB in the beginning and 66.4MB in the end (delta: -11.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.27ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 65.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.37ms. Allocated memory is still 94.4MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.65ms. Allocated memory is still 94.4MB. Free memory was 64.0MB in the beginning and 54.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1213.59ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 54.5MB in the beginning and 83.6MB in the end (delta: -29.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Witness Printer took 52.52ms. Allocated memory is still 127.9MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:35:25,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1833b2f-9e38-449f-9653-9c228cb30075/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