./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ --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 5b285e679a61ee5ec3c0d899a4a7682d4249c0885f5b4a5875891b312f202de4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:57:14,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:57:14,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:57:14,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:57:14,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:57:14,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:57:14,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:57:14,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:57:14,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:57:14,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:57:14,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:57:14,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:57:14,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:57:14,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:57:14,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:57:14,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:57:14,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:57:14,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:57:14,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:57:14,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:57:14,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:57:14,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:57:14,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:57:14,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:57:14,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:57:14,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:57:14,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:57:14,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:57:14,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:57:14,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:57:14,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:57:14,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:57:14,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:57:14,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:57:14,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:57:14,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:57:14,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:57:14,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:57:14,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:57:14,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:57:14,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:57:14,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:57:14,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:57:14,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:57:14,839 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:57:14,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:57:14,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:57:14,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:57:14,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:57:14,841 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:57:14,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:57:14,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:57:14,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:57:14,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:57:14,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:57:14,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:57:14,844 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:57:14,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:57:14,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:57:14,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:57:14,844 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:57:14,845 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:57:14,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:57:14,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:57:14,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:57:14,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:57:14,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:57:14,846 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:57:14,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:57:14,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:57:14,847 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_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b285e679a61ee5ec3c0d899a4a7682d4249c0885f5b4a5875891b312f202de4 [2021-11-23 00:57:15,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:57:15,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:57:15,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:57:15,207 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:57:15,208 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:57:15,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2021-11-23 00:57:15,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/data/459ddd49e/0a4663407eca4f0d95d4059486fd90f9/FLAG656f5bd57 [2021-11-23 00:57:15,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:57:15,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2021-11-23 00:57:15,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/data/459ddd49e/0a4663407eca4f0d95d4059486fd90f9/FLAG656f5bd57 [2021-11-23 00:57:15,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/data/459ddd49e/0a4663407eca4f0d95d4059486fd90f9 [2021-11-23 00:57:15,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:57:15,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:57:15,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:57:15,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:57:15,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:57:15,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:57:15" (1/1) ... [2021-11-23 00:57:15,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db934ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:15, skipping insertion in model container [2021-11-23 00:57:15,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:57:15" (1/1) ... [2021-11-23 00:57:15,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:57:15,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:57:16,051 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_378aef2f-23d3-47b5-826f-61e3584545b3/sv-benchmarks/c/loop-acceleration/diamond_2-2.c[373,386] [2021-11-23 00:57:16,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:57:16,104 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:57:16,119 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_378aef2f-23d3-47b5-826f-61e3584545b3/sv-benchmarks/c/loop-acceleration/diamond_2-2.c[373,386] [2021-11-23 00:57:16,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:57:16,161 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:57:16,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16 WrapperNode [2021-11-23 00:57:16,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:57:16,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:57:16,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:57:16,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:57:16,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,231 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2021-11-23 00:57:16,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:57:16,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:57:16,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:57:16,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:57:16,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:57:16,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:57:16,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:57:16,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:57:16,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:57:16,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:57:16,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:57:16,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:57:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:57:16,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:57:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:57:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:57:16,440 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:57:16,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:57:16,667 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:57:16,813 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:57:16,813 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:57:16,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:57:16 BoogieIcfgContainer [2021-11-23 00:57:16,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:57:16,825 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:57:16,825 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:57:16,834 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:57:16,835 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:57:16" (1/1) ... [2021-11-23 00:57:16,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:57:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-23 00:57:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-23 00:57:16,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:57:16,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:16,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:17,146 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 00:57:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:17,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-11-23 00:57:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-23 00:57:17,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:57:17,181 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:17,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2021-11-23 00:57:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2021-11-23 00:57:17,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:57:17,761 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:17,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:18,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2021-11-23 00:57:18,615 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2021-11-23 00:57:18,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:57:18,616 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:18,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 14 states and 25 transitions. [2021-11-23 00:57:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 25 transitions. [2021-11-23 00:57:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:57:19,228 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:19,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 16 states and 29 transitions. [2021-11-23 00:57:19,924 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 29 transitions. [2021-11-23 00:57:19,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:57:19,925 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:19,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 00:57:21,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 18 states and 36 transitions. [2021-11-23 00:57:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 36 transitions. [2021-11-23 00:57:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 00:57:21,058 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:57:21,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:57:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:57:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:57:22,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:57:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-23 00:57:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-23 00:57:22,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:57:22,355 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-23 00:57:22,363 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 00:57:22,432 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:57:22,436 INFO L560 CodeCheckObserver]: Invariant with dag size 60 [2021-11-23 00:57:22,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:57:22 ImpRootNode [2021-11-23 00:57:22,446 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:57:22,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:57:22,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:57:22,447 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:57:22,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:57:16" (3/4) ... [2021-11-23 00:57:22,450 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:57:22,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-23 00:57:22,459 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 00:57:22,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 00:57:22,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:57:22,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:57:22,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:57:22,509 INFO L158 Benchmark]: Toolchain (without parser) took 6743.00ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 66.9MB in the beginning and 79.9MB in the end (delta: -13.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2021-11-23 00:57:22,510 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:57:22,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.42ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 75.1MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:57:22,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.63ms. Allocated memory is still 98.6MB. Free memory was 75.1MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:57:22,515 INFO L158 Benchmark]: Boogie Preprocessor took 45.45ms. Allocated memory is still 98.6MB. Free memory was 72.9MB in the beginning and 71.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:57:22,515 INFO L158 Benchmark]: RCFGBuilder took 544.34ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 57.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 00:57:22,516 INFO L158 Benchmark]: CodeCheck took 5621.60ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 56.7MB in the beginning and 82.0MB in the end (delta: -25.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-23 00:57:22,517 INFO L158 Benchmark]: Witness Printer took 61.66ms. Allocated memory is still 127.9MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:57:22,519 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: 5.5s, OverallIterations: 8, 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, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 225 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 391 IncrementalHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 225 mSolverCounterUnsat, 21 mSDtfsCounter, 391 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 443 GetRequests, 363 SyntacticMatches, 10 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1993 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 12/56 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: 8]: 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: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((((y == 2 * (y / 2) && 40 <= x) && x <= 40) || ((x <= 60 && 60 <= x) && y == 2 * (y / 2))) || ((0 < x / 4294967296 + 1 || 5 + x <= 0) && (((0 <= 5 + x && x / 4294967296 + 1 <= 0) && !(y == 2 * (y / 2))) || ((20 <= x && y == 2 * (y / 2)) && x <= 20)))) || ((80 <= x && y == 2 * (y / 2)) && x <= 80)) || x == 0) || (((!(5 + x <= 0 && 2 * (y / 2) < y) && y + 2 * (x / 2) <= x + 2 * (y / 2)) && ((x / 4294967296 + 1 <= 0 && 0 <= x + 25) || (100 <= x && x / 4294967296 <= 0))) && x + 2 * (y / 2) < y + 2 * (x / 2) + 1) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.42ms. Allocated memory is still 98.6MB. Free memory was 66.7MB in the beginning and 75.1MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.63ms. Allocated memory is still 98.6MB. Free memory was 75.1MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.45ms. Allocated memory is still 98.6MB. Free memory was 72.9MB in the beginning and 71.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.34ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 57.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 5621.60ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 56.7MB in the beginning and 82.0MB in the end (delta: -25.4MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Witness Printer took 61.66ms. Allocated memory is still 127.9MB. Free memory was 82.0MB in the beginning and 79.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:57:22,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_378aef2f-23d3-47b5-826f-61e3584545b3/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE