./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/array_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:01:15,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:01:15,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:01:15,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:01:15,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:01:15,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:01:15,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:01:15,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:01:15,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:01:15,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:01:15,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:01:15,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:01:15,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:01:15,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:01:15,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:01:15,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:01:15,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:01:15,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:01:15,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:01:15,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:01:15,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:01:15,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:01:15,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:01:15,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:01:15,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:01:15,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:01:15,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:01:15,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:01:15,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:01:15,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:01:15,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:01:15,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:01:15,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:01:15,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:01:15,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:01:15,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:01:15,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:01:15,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:01:15,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:01:15,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:01:15,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:01:15,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:01:15,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:01:15,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:01:15,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:01:15,755 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:01:15,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:01:15,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:01:15,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:01:15,756 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:01:15,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:01:15,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:01:15,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:01:15,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:01:15,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:01:15,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:01:15,769 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:01:15,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:01:15,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:01:15,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:01:15,770 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:01:15,770 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:01:15,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:01:15,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:01:15,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:01:15,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:01:15,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:01:15,772 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:01:15,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:01:15,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:01:15,772 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_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c5d8dd6c87f471ee77fd3b765c8ecabfaf01dd976e127275ea7c589f724f472 [2021-10-29 04:01:16,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:01:16,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:01:16,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:01:16,123 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:01:16,124 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:01:16,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loop-acceleration/array_3-1.i [2021-10-29 04:01:16,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/data/0351bad3c/1cab6ea05ed640b296b94950d5ce0de1/FLAG6edae8fc6 [2021-10-29 04:01:16,808 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:01:16,809 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/sv-benchmarks/c/loop-acceleration/array_3-1.i [2021-10-29 04:01:16,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/data/0351bad3c/1cab6ea05ed640b296b94950d5ce0de1/FLAG6edae8fc6 [2021-10-29 04:01:17,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/data/0351bad3c/1cab6ea05ed640b296b94950d5ce0de1 [2021-10-29 04:01:17,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:01:17,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:01:17,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:01:17,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:01:17,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:01:17,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca0f155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17, skipping insertion in model container [2021-10-29 04:01:17,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:01:17,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:01:17,395 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2021-10-29 04:01:17,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:01:17,416 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:01:17,434 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/sv-benchmarks/c/loop-acceleration/array_3-1.i[849,862] [2021-10-29 04:01:17,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:01:17,459 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:01:17,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17 WrapperNode [2021-10-29 04:01:17,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:01:17,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:01:17,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:01:17,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:01:17,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:01:17,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:01:17,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:01:17,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:01:17,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:01:17,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:01:17,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:01:17,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:01:17,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:17,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:01:17,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:01:17,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:01:17,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:01:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:01:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:01:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:01:17,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:01:17,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:01:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:01:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:01:17,977 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:01:17,977 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 04:01:17,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:01:17 BoogieIcfgContainer [2021-10-29 04:01:17,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:01:17,981 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:01:17,981 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:01:17,991 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:01:17,999 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:01:17" (1/1) ... [2021-10-29 04:01:18,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:01:18,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-10-29 04:01:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-29 04:01:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:01:18,062 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:18,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:01:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-10-29 04:01:18,251 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-29 04:01:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:01:18,252 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:18,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:18,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:01:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2021-10-29 04:01:18,368 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2021-10-29 04:01:18,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:01:18,371 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:18,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:01:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2021-10-29 04:01:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2021-10-29 04:01:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:01:18,480 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:18,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 04:01:18,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-10-29 04:01:18,694 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-10-29 04:01:18,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:01:18,695 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:18,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 04:01:18,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2021-10-29 04:01:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2021-10-29 04:01:18,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:01:18,839 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:18,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 04:01:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2021-10-29 04:01:19,002 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-10-29 04:01:19,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:01:19,003 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:01:19,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:01:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:01:19,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 04:01:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:01:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2021-10-29 04:01:19,169 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2021-10-29 04:01:19,169 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:01:19,170 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-29 04:01:19,176 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 04:01:19,227 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:01:19,231 INFO L565 CodeCheckObserver]: Invariant with dag size 3 [2021-10-29 04:01:19,237 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:01:19,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:01:19 ImpRootNode [2021-10-29 04:01:19,238 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:01:19,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:01:19,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:01:19,239 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:01:19,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:01:17" (3/4) ... [2021-10-29 04:01:19,242 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:01:19,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 04:01:19,252 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 04:01:19,252 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:01:19,252 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:01:19,318 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:01:19,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:01:19,321 INFO L168 Benchmark]: Toolchain (without parser) took 2158.26 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 59.8 MB in the beginning and 80.1 MB in the end (delta: -20.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:01:19,322 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory was 67.1 MB in the beginning and 67.0 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:01:19,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.99 ms. Allocated memory is still 94.4 MB. Free memory was 59.6 MB in the beginning and 70.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:01:19,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.53 ms. Allocated memory is still 94.4 MB. Free memory was 70.4 MB in the beginning and 69.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:01:19,325 INFO L168 Benchmark]: Boogie Preprocessor took 47.09 ms. Allocated memory is still 94.4 MB. Free memory was 69.1 MB in the beginning and 67.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:01:19,329 INFO L168 Benchmark]: RCFGBuilder took 430.12 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 56.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:01:19,340 INFO L168 Benchmark]: CodeCheck took 1257.00 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 82.8 MB in the end (delta: -25.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:01:19,340 INFO L168 Benchmark]: Witness Printer took 80.58 ms. Allocated memory is still 123.7 MB. Free memory was 82.8 MB in the beginning and 80.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:01:19,345 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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: 848 SDtfs, 148 SDslu, 114 SDs, 0 SdLazy, 904 SolverSat, 462 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 526 GetRequests, 503 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 21/25 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: 16]: 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: i <= 1023 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory was 67.1 MB in the beginning and 67.0 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.99 ms. Allocated memory is still 94.4 MB. Free memory was 59.6 MB in the beginning and 70.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.53 ms. Allocated memory is still 94.4 MB. Free memory was 70.4 MB in the beginning and 69.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.09 ms. Allocated memory is still 94.4 MB. Free memory was 69.1 MB in the beginning and 67.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 430.12 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 56.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 1257.00 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 82.8 MB in the end (delta: -25.9 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Witness Printer took 80.58 ms. Allocated memory is still 123.7 MB. Free memory was 82.8 MB in the beginning and 80.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 04:01:19,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1823754-a885-49c7-b402-87982612cbae/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...