./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI --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 eff30860b93e12e0f427a39d6e133ecae4dea669b3383f2efa9b7561bb59ead3 .................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:32:11,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:32:11,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:32:11,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:32:11,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:32:11,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:32:11,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:32:11,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:32:11,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:32:11,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:32:11,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:32:11,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:32:11,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:32:11,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:32:11,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:32:11,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:32:11,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:32:11,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:32:11,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:32:11,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:32:11,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:32:11,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:32:11,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:32:11,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:32:11,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:32:11,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:32:11,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:32:11,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:32:11,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:32:11,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:32:11,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:32:11,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:32:11,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:32:11,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:32:11,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:32:11,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:32:11,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:32:11,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:32:11,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:32:11,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:32:11,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:32:11,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:32:11,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:32:11,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:32:11,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:32:11,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:32:11,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:32:11,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:32:11,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:32:11,934 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:32:11,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:32:11,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:32:11,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:32:11,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:32:11,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:32:11,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:32:11,936 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:32:11,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:32:11,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:32:11,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:32:11,937 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:32:11,937 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:32:11,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:32:11,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:32:11,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:32:11,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:32:11,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:32:11,939 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:32:11,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:32:11,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:32:11,940 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_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eff30860b93e12e0f427a39d6e133ecae4dea669b3383f2efa9b7561bb59ead3 [2021-10-29 03:32:12,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:32:12,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:32:12,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:32:12,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:32:12,311 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:32:12,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/ldv-regression/test11.c [2021-10-29 03:32:12,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/data/20af9a6ff/23328b41441842deb13a15ebb6e31a61/FLAG00343fc39 [2021-10-29 03:32:13,058 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:32:13,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/sv-benchmarks/c/ldv-regression/test11.c [2021-10-29 03:32:13,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/data/20af9a6ff/23328b41441842deb13a15ebb6e31a61/FLAG00343fc39 [2021-10-29 03:32:13,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/data/20af9a6ff/23328b41441842deb13a15ebb6e31a61 [2021-10-29 03:32:13,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:32:13,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:32:13,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:32:13,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:32:13,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:32:13,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7134d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13, skipping insertion in model container [2021-10-29 03:32:13,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:32:13,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:32:13,706 WARN L228 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_d23a3da2-1731-485b-ba6c-6b8b19dc2864/sv-benchmarks/c/ldv-regression/test11.c[823,836] [2021-10-29 03:32:13,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:32:13,738 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:32:13,762 WARN L228 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_d23a3da2-1731-485b-ba6c-6b8b19dc2864/sv-benchmarks/c/ldv-regression/test11.c[823,836] [2021-10-29 03:32:13,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:32:13,785 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:32:13,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13 WrapperNode [2021-10-29 03:32:13,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:32:13,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:32:13,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:32:13,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:32:13,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:32:13,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:32:13,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:32:13,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:32:13,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:32:13,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:32:13,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:32:13,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:32:13,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:32:13" (1/1) ... [2021-10-29 03:32:13,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:32:13,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:32:13,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:32:13,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:32:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:32:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:32:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:32:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:32:14,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:32:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:32:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:32:14,618 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:32:14,618 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 03:32:14,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:32:14 BoogieIcfgContainer [2021-10-29 03:32:14,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:32:14,622 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:32:14,623 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:32:14,649 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:32:14,650 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:32:14" (1/1) ... [2021-10-29 03:32:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:32:14,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:32:14,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-10-29 03:32:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-10-29 03:32:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:32:14,742 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:32:14,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:32:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:32:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:32:15,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:32:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2021-10-29 03:32:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-29 03:32:15,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:32:15,123 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:32:15,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:32:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:32:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:32:15,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:32:15,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2021-10-29 03:32:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2021-10-29 03:32:15,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:32:15,406 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2021-10-29 03:32:15,413 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:32:15,427 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:32:15,435 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 03:32:15,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:32:15 ImpRootNode [2021-10-29 03:32:15,436 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:32:15,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:32:15,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:32:15,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:32:15,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:32:14" (3/4) ... [2021-10-29 03:32:15,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:32:15,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-29 03:32:15,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 03:32:15,475 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:32:15,476 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:32:15,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:32:15,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:32:15,542 INFO L168 Benchmark]: Toolchain (without parser) took 2132.70 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 68.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:32:15,543 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:32:15,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.29 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 69.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:32:15,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.96 ms. Allocated memory is still 94.4 MB. Free memory was 69.9 MB in the beginning and 68.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:32:15,546 INFO L168 Benchmark]: Boogie Preprocessor took 54.69 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 67.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:32:15,546 INFO L168 Benchmark]: RCFGBuilder took 720.24 ms. Allocated memory is still 94.4 MB. Free memory was 67.2 MB in the beginning and 48.4 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:32:15,547 INFO L168 Benchmark]: CodeCheck took 814.30 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 48.4 MB in the beginning and 71.5 MB in the end (delta: -23.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:32:15,548 INFO L168 Benchmark]: Witness Printer took 103.23 ms. Allocated memory is still 113.2 MB. Free memory was 71.5 MB in the beginning and 68.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:32:15,552 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: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 22 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 32]: 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 69.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.29 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 69.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.96 ms. Allocated memory is still 94.4 MB. Free memory was 69.9 MB in the beginning and 68.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.69 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 67.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 720.24 ms. Allocated memory is still 94.4 MB. Free memory was 67.2 MB in the beginning and 48.4 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 814.30 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 48.4 MB in the beginning and 71.5 MB in the end (delta: -23.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 103.23 ms. Allocated memory is still 113.2 MB. Free memory was 71.5 MB in the beginning and 68.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:32:15,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d23a3da2-1731-485b-ba6c-6b8b19dc2864/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...