./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.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_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/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_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/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_39b7d837-3173-42e1-829f-18ad8dadc81f/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 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1 ...................................................................................................................................................................................................................................................................................... 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 04:04:09,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:04:09,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:04:09,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:04:09,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:04:09,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:04:09,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:04:09,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:04:09,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:04:09,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:04:09,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:04:09,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:04:09,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:04:09,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:04:09,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:04:09,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:04:09,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:04:09,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:04:09,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:04:09,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:04:09,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:04:09,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:04:09,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:04:09,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:04:09,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:04:09,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:04:09,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:04:09,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:04:09,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:04:09,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:04:09,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:04:09,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:04:09,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:04:09,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:04:09,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:04:09,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:04:09,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:04:09,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:04:09,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:04:09,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:04:09,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:04:09,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:04:09,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:04:09,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:04:09,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:04:09,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:04:09,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:04:09,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:04:09,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:04:09,754 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:04:09,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:04:09,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:04:09,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:04:09,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:04:09,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:04:09,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:04:09,765 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:04:09,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:04:09,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:04:09,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:04:09,766 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:04:09,767 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:04:09,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:04:09,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:04:09,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:04:09,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:04:09,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:04:09,769 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:04:09,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:04:09,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:04:09,770 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_39b7d837-3173-42e1-829f-18ad8dadc81f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1 [2021-10-29 04:04:10,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:04:10,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:04:10,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:04:10,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:04:10,211 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:04:10,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2021-10-29 04:04:10,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/data/4c4fcc363/2402d086fd5548e7ad2139fbb48bc07b/FLAG6ddc089d3 [2021-10-29 04:04:10,899 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:04:10,900 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2021-10-29 04:04:10,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/data/4c4fcc363/2402d086fd5548e7ad2139fbb48bc07b/FLAG6ddc089d3 [2021-10-29 04:04:11,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/data/4c4fcc363/2402d086fd5548e7ad2139fbb48bc07b [2021-10-29 04:04:11,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:04:11,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:04:11,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:04:11,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:04:11,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:04:11,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721485c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11, skipping insertion in model container [2021-10-29 04:04:11,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:04:11,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:04:11,539 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_39b7d837-3173-42e1-829f-18ad8dadc81f/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i[951,964] [2021-10-29 04:04:11,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:04:11,567 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:04:11,584 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_39b7d837-3173-42e1-829f-18ad8dadc81f/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i[951,964] [2021-10-29 04:04:11,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:04:11,605 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:04:11,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11 WrapperNode [2021-10-29 04:04:11,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:04:11,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:04:11,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:04:11,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:04:11,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:04:11,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:04:11,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:04:11,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:04:11,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:04:11,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:04:11,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:04:11,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:04:11,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:04:11" (1/1) ... [2021-10-29 04:04:11,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:04:11,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:04:11,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:04:11,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:04:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:04:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:04:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:04:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:04:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 04:04:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 04:04:12,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:04:12,113 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 04:04:12,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:04:12 BoogieIcfgContainer [2021-10-29 04:04:12,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:04:12,118 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:04:12,118 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:04:12,137 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:04:12,137 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:04:12" (1/1) ... [2021-10-29 04:04:12,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:04:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:12,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-10-29 04:04:12,253 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-10-29 04:04:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:04:12,256 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:04:12,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:04:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:04:12,460 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 04:04:12,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2021-10-29 04:04:12,480 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-10-29 04:04:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:04:12,481 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:04:12,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:04:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:04:12,631 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 04:04:12,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:12,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-10-29 04:04:12,689 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-10-29 04:04:12,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:04:12,689 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:04:12,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:04:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:04:12,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:04:12,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:04:13,199 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 04:04:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:13,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2021-10-29 04:04:13,570 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2021-10-29 04:04:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:04:13,576 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:04:13,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:04:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:04:13,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:04:13,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:04:13,753 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 04:04:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2021-10-29 04:04:14,449 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2021-10-29 04:04:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:04:14,450 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:04:14,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:04:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:04:14,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:04:14,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:04:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 04:04:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 35 states and 60 transitions. [2021-10-29 04:04:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2021-10-29 04:04:15,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:04:15,077 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:04:15,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:04:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:04:15,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:04:15,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:04:15,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:04:16,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:16,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 37 states and 63 transitions. [2021-10-29 04:04:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 63 transitions. [2021-10-29 04:04:16,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:04:16,093 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:04:16,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:04:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:04:16,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:04:16,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:04:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:04:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:04:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 18 states and 20 transitions. [2021-10-29 04:04:16,683 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-29 04:04:16,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:04:16,684 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-29 04:04:16,691 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 04:04:16,758 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:04:16,762 INFO L565 CodeCheckObserver]: Invariant with dag size 15 [2021-10-29 04:04:16,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:04:16 ImpRootNode [2021-10-29 04:04:16,774 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:04:16,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:04:16,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:04:16,775 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:04:16,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:04:12" (3/4) ... [2021-10-29 04:04:16,779 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:04:16,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 04:04:16,793 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-29 04:04:16,793 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 04:04:16,793 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:04:16,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:04:16,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:04:16,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:04:16,839 INFO L168 Benchmark]: Toolchain (without parser) took 5567.14 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 63.5 MB in the beginning and 97.0 MB in the end (delta: -33.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:04:16,840 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory is still 79.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:04:16,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.58 ms. Allocated memory is still 104.9 MB. Free memory was 63.3 MB in the beginning and 79.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:04:16,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.81 ms. Allocated memory is still 104.9 MB. Free memory was 79.4 MB in the beginning and 78.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:04:16,842 INFO L168 Benchmark]: Boogie Preprocessor took 26.77 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 76.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:04:16,843 INFO L168 Benchmark]: RCFGBuilder took 439.46 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 66.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:04:16,844 INFO L168 Benchmark]: CodeCheck took 4656.09 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 66.0 MB in the beginning and 99.0 MB in the end (delta: -33.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:04:16,844 INFO L168 Benchmark]: Witness Printer took 62.63 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 97.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:04:16,849 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, 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: 1456 SDtfs, 224 SDslu, 328 SDs, 0 SdLazy, 2446 SolverSat, 870 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 663 GetRequests, 572 SyntacticMatches, 9 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2359 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 229 SizeOfPredicates, 5 NumberOfNonLiveVariables, 297 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 6/7 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: 21]: 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: 48]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((A == r && counter == 0) && b == 1) && q == 0) || ((1 <= counter && A == r) && q == 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory is still 79.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.58 ms. Allocated memory is still 104.9 MB. Free memory was 63.3 MB in the beginning and 79.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.81 ms. Allocated memory is still 104.9 MB. Free memory was 79.4 MB in the beginning and 78.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.77 ms. Allocated memory is still 104.9 MB. Free memory was 78.1 MB in the beginning and 76.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 439.46 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 66.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 4656.09 ms. Allocated memory was 104.9 MB in the beginning and 132.1 MB in the end (delta: 27.3 MB). Free memory was 66.0 MB in the beginning and 99.0 MB in the end (delta: -33.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 62.63 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 97.0 MB in the end (delta: 2.0 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 04:04:16,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b7d837-3173-42e1-829f-18ad8dadc81f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...