./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/n.c40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/n.c40.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu --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 ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:36:02,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:36:02,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:36:02,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:36:02,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:36:02,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:36:03,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:36:03,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:36:03,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:36:03,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:36:03,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:36:03,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:36:03,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:36:03,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:36:03,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:36:03,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:36:03,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:36:03,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:36:03,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:36:03,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:36:03,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:36:03,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:36:03,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:36:03,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:36:03,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:36:03,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:36:03,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:36:03,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:36:03,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:36:03,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:36:03,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:36:03,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:36:03,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:36:03,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:36:03,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:36:03,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:36:03,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:36:03,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:36:03,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:36:03,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:36:03,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:36:03,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:36:03,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:36:03,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:36:03,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:36:03,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:36:03,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:36:03,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:36:03,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:36:03,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:36:03,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:36:03,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:36:03,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:36:03,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:36:03,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:36:03,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:36:03,149 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:36:03,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:36:03,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:36:03,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:36:03,150 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:36:03,150 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:36:03,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:36:03,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:36:03,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:36:03,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:36:03,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:36:03,151 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:36:03,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:36:03,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:36:03,152 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_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec147baa41deaa706a3db1972af791532e50c36ff3c23d3d92f8d6bea9417e65 [2021-11-23 15:36:03,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:36:03,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:36:03,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:36:03,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:36:03,463 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:36:03,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/loops/n.c40.c [2021-11-23 15:36:03,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/data/15945d799/53e20ed90e3349dfa41a8af1a4f666b2/FLAG4f78a6c65 [2021-11-23 15:36:04,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:36:04,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/sv-benchmarks/c/loops/n.c40.c [2021-11-23 15:36:04,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/data/15945d799/53e20ed90e3349dfa41a8af1a4f666b2/FLAG4f78a6c65 [2021-11-23 15:36:04,451 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/data/15945d799/53e20ed90e3349dfa41a8af1a4f666b2 [2021-11-23 15:36:04,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:36:04,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:36:04,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:36:04,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:36:04,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:36:04,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442796f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04, skipping insertion in model container [2021-11-23 15:36:04,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:36:04,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:36:04,619 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_e13cb392-5c25-4a81-8bf0-063bfeae0753/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-11-23 15:36:04,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:36:04,637 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:36:04,654 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_e13cb392-5c25-4a81-8bf0-063bfeae0753/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-11-23 15:36:04,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:36:04,669 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:36:04,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04 WrapperNode [2021-11-23 15:36:04,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:36:04,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:36:04,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:36:04,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:36:04,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,708 INFO L137 Inliner]: procedures = 12, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2021-11-23 15:36:04,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:36:04,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:36:04,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:36:04,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:36:04,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:36:04,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:36:04,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:36:04,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:36:04,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:04" (1/1) ... [2021-11-23 15:36:04,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:36:04,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:36:04,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:36:04,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:36:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:36:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:36:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:36:04,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:36:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:36:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:36:04,893 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:36:04,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:36:05,045 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:36:05,065 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:36:05,065 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 15:36:05,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:05 BoogieIcfgContainer [2021-11-23 15:36:05,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:36:05,069 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:36:05,069 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:36:05,080 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:36:05,080 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:05" (1/1) ... [2021-11-23 15:36:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:36:05,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:36:05,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2021-11-23 15:36:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-11-23 15:36:05,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:36:05,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:36:05,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:36:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:36:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:36:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:36:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2021-11-23 15:36:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-23 15:36:05,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:36:05,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:36:05,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:36:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:36:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:36:05,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:36:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2021-11-23 15:36:05,477 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-23 15:36:05,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 15:36:05,478 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:36:05,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:36:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:36:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:36:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:36:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2021-11-23 15:36:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-23 15:36:05,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 15:36:05,917 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2021-11-23 15:36:05,926 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 15:36:05,952 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 15:36:05,957 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2021-11-23 15:36:05,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:36:05 ImpRootNode [2021-11-23 15:36:05,974 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 15:36:05,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 15:36:05,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 15:36:05,975 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 15:36:05,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:05" (3/4) ... [2021-11-23 15:36:05,980 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 15:36:05,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 15:36:05,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 15:36:05,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 15:36:05,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 15:36:06,042 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/witness.graphml [2021-11-23 15:36:06,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 15:36:06,044 INFO L158 Benchmark]: Toolchain (without parser) took 1588.99ms. Allocated memory is still 111.1MB. Free memory was 85.0MB in the beginning and 81.3MB in the end (delta: 3.6MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2021-11-23 15:36:06,052 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:36:06,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.65ms. Allocated memory is still 111.1MB. Free memory was 84.8MB in the beginning and 74.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:36:06,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.25ms. Allocated memory is still 111.1MB. Free memory was 74.7MB in the beginning and 73.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:36:06,054 INFO L158 Benchmark]: Boogie Preprocessor took 24.66ms. Allocated memory is still 111.1MB. Free memory was 73.4MB in the beginning and 72.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:36:06,055 INFO L158 Benchmark]: RCFGBuilder took 333.15ms. Allocated memory is still 111.1MB. Free memory was 72.1MB in the beginning and 62.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:36:06,055 INFO L158 Benchmark]: CodeCheck took 905.31ms. Allocated memory is still 111.1MB. Free memory was 62.2MB in the beginning and 83.6MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:36:06,056 INFO L158 Benchmark]: Witness Printer took 67.76ms. Allocated memory is still 111.1MB. Free memory was 83.6MB in the beginning and 81.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:36:06,059 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 31 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 22]: 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: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (unknown-#memory_int-unknown[x][i + x] == 0 && !(x == y)) && i == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory is still 53.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.65ms. Allocated memory is still 111.1MB. Free memory was 84.8MB in the beginning and 74.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.25ms. Allocated memory is still 111.1MB. Free memory was 74.7MB in the beginning and 73.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.66ms. Allocated memory is still 111.1MB. Free memory was 73.4MB in the beginning and 72.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 333.15ms. Allocated memory is still 111.1MB. Free memory was 72.1MB in the beginning and 62.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 905.31ms. Allocated memory is still 111.1MB. Free memory was 62.2MB in the beginning and 83.6MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.76ms. Allocated memory is still 111.1MB. Free memory was 83.6MB in the beginning and 81.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 15:36:06,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13cb392-5c25-4a81-8bf0-063bfeae0753/bin/ukojak-CwSLpZB5Qu/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