./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.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_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/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_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/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_271e5335-1bba-43e1-97fb-48603693f4f7/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 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- 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 16:43:55,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:43:55,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:43:55,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:43:55,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:43:55,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:43:55,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:43:55,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:43:55,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:43:55,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:43:55,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:43:55,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:43:55,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:43:55,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:43:55,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:43:55,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:43:55,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:43:55,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:43:55,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:43:55,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:43:55,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:43:55,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:43:55,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:43:55,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:43:55,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:43:55,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:43:55,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:43:55,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:43:55,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:43:55,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:43:55,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:43:55,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:43:55,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:43:55,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:43:55,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:43:55,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:43:55,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:43:55,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:43:55,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:43:55,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:43:55,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:43:55,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:43:55,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:43:55,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:43:55,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:43:55,952 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:43:55,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:43:55,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:43:55,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:43:55,954 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:43:55,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:43:55,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:43:55,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:43:55,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:43:55,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:43:55,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:43:55,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:43:55,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:43:55,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:43:55,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:43:55,959 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:43:55,959 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:43:55,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:43:55,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:43:55,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:43:55,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:43:55,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:43:55,961 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:43:55,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:43:55,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:43:55,969 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_271e5335-1bba-43e1-97fb-48603693f4f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2022-10-17 16:43:56,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:43:56,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:43:56,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:43:56,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:43:56,326 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:43:56,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loop-invgen/id_build.i [2022-10-17 16:43:56,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/data/c40efba16/32f9cda193524219bfa2bd8fa6f96e81/FLAG95ad54166 [2022-10-17 16:43:56,927 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:43:56,927 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/sv-benchmarks/c/loop-invgen/id_build.i [2022-10-17 16:43:56,935 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/data/c40efba16/32f9cda193524219bfa2bd8fa6f96e81/FLAG95ad54166 [2022-10-17 16:43:57,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/data/c40efba16/32f9cda193524219bfa2bd8fa6f96e81 [2022-10-17 16:43:57,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:43:57,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:43:57,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:43:57,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:43:57,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:43:57,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138b79a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57, skipping insertion in model container [2022-10-17 16:43:57,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:43:57,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:43:57,525 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_271e5335-1bba-43e1-97fb-48603693f4f7/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2022-10-17 16:43:57,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:43:57,551 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:43:57,568 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_271e5335-1bba-43e1-97fb-48603693f4f7/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2022-10-17 16:43:57,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:43:57,585 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:43:57,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57 WrapperNode [2022-10-17 16:43:57,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:43:57,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:43:57,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:43:57,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:43:57,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,624 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-10-17 16:43:57,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:43:57,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:43:57,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:43:57,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:43:57,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:43:57,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:43:57,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:43:57,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:43:57,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:57" (1/1) ... [2022-10-17 16:43:57,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:43:57,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:43:57,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:43:57,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:43:57,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:43:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:43:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:43:57,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:43:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:43:57,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:43:57,834 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:43:57,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:43:57,983 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:43:58,017 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:43:58,017 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:43:58,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:58 BoogieIcfgContainer [2022-10-17 16:43:58,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:43:58,022 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:43:58,023 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:43:58,036 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:43:58,037 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:58" (1/1) ... [2022-10-17 16:43:58,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:43:58,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:58,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2022-10-17 16:43:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-10-17 16:43:58,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:43:58,126 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:58,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:43:58,449 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 16:43:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 21 transitions. [2022-10-17 16:43:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-10-17 16:43:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:43:58,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:58,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:43:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:43:59,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:59,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 30 transitions. [2022-10-17 16:43:59,152 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2022-10-17 16:43:59,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:43:59,153 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:43:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 16:43:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 25 transitions. [2022-10-17 16:43:59,718 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-10-17 16:43:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:43:59,720 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:59,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:43:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:43:59,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 11 states and 13 transitions. [2022-10-17 16:43:59,871 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-10-17 16:43:59,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:43:59,872 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-10-17 16:43:59,884 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:43:59,939 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:43:59,943 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:43:59,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:43:59 ImpRootNode [2022-10-17 16:43:59,944 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:43:59,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:43:59,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:43:59,948 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:43:59,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:58" (3/4) ... [2022-10-17 16:43:59,951 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:43:59,957 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:43:59,964 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-10-17 16:43:59,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 16:43:59,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:43:59,965 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:44:00,026 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:44:00,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:44:00,027 INFO L158 Benchmark]: Toolchain (without parser) took 2745.93ms. Allocated memory is still 104.9MB. Free memory was 63.8MB in the beginning and 45.5MB in the end (delta: 18.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-10-17 16:44:00,027 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:44:00,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.85ms. Allocated memory is still 104.9MB. Free memory was 63.6MB in the beginning and 80.0MB in the end (delta: -16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:44:00,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.77ms. Allocated memory is still 104.9MB. Free memory was 80.0MB in the beginning and 78.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:44:00,029 INFO L158 Benchmark]: Boogie Preprocessor took 26.84ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:44:00,029 INFO L158 Benchmark]: RCFGBuilder took 368.09ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 67.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:44:00,030 INFO L158 Benchmark]: CodeCheck took 1922.26ms. Allocated memory is still 104.9MB. Free memory was 67.1MB in the beginning and 48.1MB in the end (delta: 19.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 16:44:00,030 INFO L158 Benchmark]: Witness Printer took 79.07ms. Allocated memory is still 104.9MB. Free memory was 48.1MB in the beginning and 45.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:44:00,041 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 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 54 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 454 GetRequests, 432 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 25/33 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: 28]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.85ms. Allocated memory is still 104.9MB. Free memory was 63.6MB in the beginning and 80.0MB in the end (delta: -16.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.77ms. Allocated memory is still 104.9MB. Free memory was 80.0MB in the beginning and 78.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.84ms. Allocated memory is still 104.9MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.09ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 67.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1922.26ms. Allocated memory is still 104.9MB. Free memory was 67.1MB in the beginning and 48.1MB in the end (delta: 19.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 79.07ms. Allocated memory is still 104.9MB. Free memory was 48.1MB in the beginning and 45.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:44:00,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_271e5335-1bba-43e1-97fb-48603693f4f7/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