./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007b.i --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_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/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_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/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_33e34809-5b38-4365-837b-16cb6b90e530/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 a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:43:32,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:43:32,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:43:32,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:43:32,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:43:32,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:43:32,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:43:32,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:43:32,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:43:32,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:43:32,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:43:32,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:43:32,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:43:32,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:43:32,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:43:32,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:43:32,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:43:32,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:43:32,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:43:32,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:43:32,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:43:32,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:43:32,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:43:32,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:43:32,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:43:32,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:43:32,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:43:32,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:43:32,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:43:32,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:43:32,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:43:32,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:43:32,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:43:32,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:43:32,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:43:32,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:43:32,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:43:32,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:43:32,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:43:32,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:43:32,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:43:32,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:43:32,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:43:32,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:43:32,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:43:32,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:43:32,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:43:32,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:43:32,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:43:32,861 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:43:32,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:43:32,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:43:32,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:43:32,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:43:32,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:43:32,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:43:32,871 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:43:32,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:43:32,872 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:43:32,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:43:32,872 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:43:32,872 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:43:32,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:43:32,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:43:32,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:43:32,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:43:32,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:43:32,874 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:43:32,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:43:32,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:43:32,875 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_33e34809-5b38-4365-837b-16cb6b90e530/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 [2021-11-23 01:43:33,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:43:33,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:43:33,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:43:33,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:43:33,287 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:43:33,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-lit/gj2007b.i [2021-11-23 01:43:33,370 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/data/98156789e/d21699d3a0d44115a08727b3466ebdfa/FLAG2e5b8f649 [2021-11-23 01:43:33,942 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:43:33,943 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/sv-benchmarks/c/loop-lit/gj2007b.i [2021-11-23 01:43:33,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/data/98156789e/d21699d3a0d44115a08727b3466ebdfa/FLAG2e5b8f649 [2021-11-23 01:43:34,284 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/data/98156789e/d21699d3a0d44115a08727b3466ebdfa [2021-11-23 01:43:34,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:43:34,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:43:34,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:43:34,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:43:34,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:43:34,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626ab9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34, skipping insertion in model container [2021-11-23 01:43:34,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:43:34,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:43:34,475 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_33e34809-5b38-4365-837b-16cb6b90e530/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-11-23 01:43:34,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:43:34,494 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:43:34,507 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_33e34809-5b38-4365-837b-16cb6b90e530/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-11-23 01:43:34,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:43:34,542 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:43:34,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34 WrapperNode [2021-11-23 01:43:34,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:43:34,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:43:34,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:43:34,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:43:34,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,583 INFO L137 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2021-11-23 01:43:34,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:43:34,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:43:34,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:43:34,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:43:34,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:43:34,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:43:34,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:43:34,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:43:34,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:43:34" (1/1) ... [2021-11-23 01:43:34,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:43:34,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:43:34,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:43:34,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:43:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:43:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:43:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:43:34,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:43:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:43:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:43:34,804 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:43:34,807 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:43:34,975 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:43:35,017 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:43:35,020 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:43:35,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:35 BoogieIcfgContainer [2021-11-23 01:43:35,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:43:35,025 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:43:35,025 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:43:35,036 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:43:35,037 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:35" (1/1) ... [2021-11-23 01:43:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:43:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:43:35,152 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:43:35,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:43:35,158 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:35,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:35,462 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 01:43:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 20 transitions. [2021-11-23 01:43:35,542 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-23 01:43:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:43:35,542 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:35,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:35,619 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 01:43:35,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:35,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 23 transitions. [2021-11-23 01:43:35,772 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2021-11-23 01:43:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:43:35,774 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:35,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:35,948 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 01:43:36,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:36,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 28 transitions. [2021-11-23 01:43:36,103 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2021-11-23 01:43:36,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:43:36,105 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:36,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:36,240 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 01:43:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 20 transitions. [2021-11-23 01:43:36,492 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-23 01:43:36,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:43:36,492 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:36,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:36,559 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 01:43:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 26 transitions. [2021-11-23 01:43:36,675 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2021-11-23 01:43:36,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:43:36,676 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:36,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 30 transitions. [2021-11-23 01:43:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-11-23 01:43:36,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:43:36,882 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:36,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:37,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 16 states and 25 transitions. [2021-11-23 01:43:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2021-11-23 01:43:37,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:43:37,337 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-23 01:43:37,345 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:43:37,412 INFO L560 CodeCheckObserver]: Invariant with dag size 17 [2021-11-23 01:43:37,423 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:43:37,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:43:37 ImpRootNode [2021-11-23 01:43:37,424 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:43:37,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:43:37,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:43:37,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:43:37,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:43:35" (3/4) ... [2021-11-23 01:43:37,428 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:43:37,433 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:43:37,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-23 01:43:37,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 01:43:37,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:43:37,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:43:37,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:43:37,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:43:37,473 INFO L158 Benchmark]: Toolchain (without parser) took 3184.97ms. Allocated memory was 88.1MB in the beginning and 138.4MB in the end (delta: 50.3MB). Free memory was 50.5MB in the beginning and 111.4MB in the end (delta: -60.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:43:37,473 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:43:37,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.10ms. Allocated memory was 88.1MB in the beginning and 138.4MB in the end (delta: 50.3MB). Free memory was 50.3MB in the beginning and 117.1MB in the end (delta: -66.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-11-23 01:43:37,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.94ms. Allocated memory is still 138.4MB. Free memory was 117.1MB in the beginning and 115.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:43:37,475 INFO L158 Benchmark]: Boogie Preprocessor took 40.56ms. Allocated memory is still 138.4MB. Free memory was 115.9MB in the beginning and 114.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:43:37,475 INFO L158 Benchmark]: RCFGBuilder took 397.46ms. Allocated memory is still 138.4MB. Free memory was 114.7MB in the beginning and 104.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:43:37,476 INFO L158 Benchmark]: CodeCheck took 2399.06ms. Allocated memory is still 138.4MB. Free memory was 104.9MB in the beginning and 114.4MB in the end (delta: -9.5MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2021-11-23 01:43:37,476 INFO L158 Benchmark]: Witness Printer took 47.90ms. Allocated memory is still 138.4MB. Free memory was 114.4MB in the beginning and 111.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:43:37,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, 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, 109 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 143 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 143 mSolverCounterUnsat, 59 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 627 GetRequests, 565 SyntacticMatches, 14 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 6/20 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((x == 0 && m == 0) || (1 <= x && m == 0)) || ((2 <= x && 1 <= m) && m + 1 <= n) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.10ms. Allocated memory was 88.1MB in the beginning and 138.4MB in the end (delta: 50.3MB). Free memory was 50.3MB in the beginning and 117.1MB in the end (delta: -66.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.94ms. Allocated memory is still 138.4MB. Free memory was 117.1MB in the beginning and 115.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.56ms. Allocated memory is still 138.4MB. Free memory was 115.9MB in the beginning and 114.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 397.46ms. Allocated memory is still 138.4MB. Free memory was 114.7MB in the beginning and 104.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2399.06ms. Allocated memory is still 138.4MB. Free memory was 104.9MB in the beginning and 114.4MB in the end (delta: -9.5MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 47.90ms. Allocated memory is still 138.4MB. Free memory was 114.4MB in the beginning and 111.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:43:37,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e34809-5b38-4365-837b-16cb6b90e530/bin/ukojak-LBtLqBUTdQ/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