./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c --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_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/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_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/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_784eff1c-d72f-4880-95a0-2eff09c0b84b/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 c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa ............................................................................................................................................................................................................................................................................................. 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 04:15:55,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:15:55,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:15:55,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:15:55,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:15:55,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:15:55,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:15:55,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:15:55,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:15:55,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:15:55,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:15:55,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:15:55,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:15:55,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:15:55,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:15:55,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:15:55,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:15:55,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:15:55,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:15:55,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:15:55,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:15:55,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:15:55,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:15:55,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:15:55,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:15:55,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:15:55,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:15:55,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:15:55,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:15:55,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:15:55,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:15:55,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:15:55,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:15:55,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:15:55,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:15:55,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:15:55,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:15:55,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:15:55,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:15:55,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:15:55,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:15:55,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:15:55,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:15:55,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:15:55,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:15:55,230 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:15:55,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:15:55,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:15:55,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:15:55,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:15:55,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:15:55,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:15:55,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:15:55,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:15:55,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:15:55,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:15:55,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:15:55,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:15:55,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:15:55,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:15:55,233 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:15:55,233 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:15:55,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:15:55,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:15:55,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:15:55,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:15:55,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:15:55,235 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:15:55,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:15:55,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:15:55,235 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_784eff1c-d72f-4880-95a0-2eff09c0b84b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa [2021-10-29 04:15:55,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:15:55,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:15:55,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:15:55,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:15:55,521 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:15:55,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2021-10-29 04:15:55,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/data/528978bdd/4b5ff27d05e145a69d771f6adfa2f21e/FLAGdcaf9d976 [2021-10-29 04:15:56,033 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:15:56,033 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2021-10-29 04:15:56,043 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/data/528978bdd/4b5ff27d05e145a69d771f6adfa2f21e/FLAGdcaf9d976 [2021-10-29 04:15:56,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/data/528978bdd/4b5ff27d05e145a69d771f6adfa2f21e [2021-10-29 04:15:56,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:15:56,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:15:56,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:15:56,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:15:56,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:15:56,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c1a752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56, skipping insertion in model container [2021-10-29 04:15:56,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:15:56,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:15:56,638 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_784eff1c-d72f-4880-95a0-2eff09c0b84b/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2021-10-29 04:15:56,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:15:56,666 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:15:56,678 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_784eff1c-d72f-4880-95a0-2eff09c0b84b/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2021-10-29 04:15:56,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:15:56,700 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:15:56,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56 WrapperNode [2021-10-29 04:15:56,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:15:56,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:15:56,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:15:56,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:15:56,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:15:56,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:15:56,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:15:56,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:15:56,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:15:56,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:15:56,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:15:56,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:15:56,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:15:56" (1/1) ... [2021-10-29 04:15:56,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:15:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:15:56,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:15:56,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:15:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-10-29 04:15:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-10-29 04:15:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:15:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:15:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:15:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:15:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 04:15:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 04:15:57,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:15:57,310 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 04:15:57,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:15:57 BoogieIcfgContainer [2021-10-29 04:15:57,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:15:57,314 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:15:57,314 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:15:57,323 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:15:57,338 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:15:57" (1/1) ... [2021-10-29 04:15:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:15:57,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:15:57,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2021-10-29 04:15:57,392 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-10-29 04:15:57,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:15:57,397 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:15:57,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:15:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:15:57,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-29 04:15:57,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:15:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 04:15:58,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:15:58,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 33 transitions. [2021-10-29 04:15:58,312 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2021-10-29 04:15:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 04:15:58,315 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:15:58,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:15:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:15:58,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-29 04:15:58,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:15:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 04:15:59,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:15:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 45 transitions. [2021-10-29 04:15:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2021-10-29 04:15:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:15:59,399 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:15:59,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:15:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:15:59,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-29 04:15:59,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 04:16:10,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:10,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 50 transitions. [2021-10-29 04:16:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2021-10-29 04:16:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:16:10,920 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:10,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:10,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 04:16:10,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 04:16:11,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:11,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 34 states and 57 transitions. [2021-10-29 04:16:11,800 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2021-10-29 04:16:11,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 04:16:11,802 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:11,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:11,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-29 04:16:11,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 04:16:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 36 states and 64 transitions. [2021-10-29 04:16:14,798 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 64 transitions. [2021-10-29 04:16:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 04:16:14,799 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:14,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:14,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-29 04:16:14,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 04:16:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:16,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 30 states and 40 transitions. [2021-10-29 04:16:16,500 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-29 04:16:16,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 04:16:16,501 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:16:16,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:16:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:16:16,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-29 04:16:16,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:16:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-29 04:16:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:16:17,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 24 states and 31 transitions. [2021-10-29 04:16:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-10-29 04:16:17,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:16:17,455 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-29 04:16:17,461 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 04:16:17,883 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:16:17,886 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:16:17,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:16:17 ImpRootNode [2021-10-29 04:16:17,887 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:16:17,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:16:17,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:16:17,888 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:16:17,888 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:15:57" (3/4) ... [2021-10-29 04:16:17,893 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:16:17,900 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-10-29 04:16:17,900 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 04:16:17,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-29 04:16:17,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 04:16:17,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:16:17,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:16:17,954 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:16:17,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:16:17,956 INFO L168 Benchmark]: Toolchain (without parser) took 21523.46 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 115.1 MB in the beginning and 131.9 MB in the end (delta: -16.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:17,956 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 54.7 MB in the beginning and 54.7 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:16:17,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.14 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 125.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:17,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.67 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 123.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:17,958 INFO L168 Benchmark]: Boogie Preprocessor took 22.78 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 122.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:17,958 INFO L168 Benchmark]: RCFGBuilder took 551.50 ms. Allocated memory is still 151.0 MB. Free memory was 122.6 MB in the beginning and 106.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:17,959 INFO L168 Benchmark]: CodeCheck took 20572.87 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 106.6 MB in the beginning and 135.0 MB in the end (delta: -28.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:17,960 INFO L168 Benchmark]: Witness Printer took 67.04 ms. Allocated memory is still 188.7 MB. Free memory was 135.0 MB in the beginning and 131.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:16:17,963 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 3 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.0s, 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: 1344 SDtfs, 676 SDslu, 528 SDs, 0 SdLazy, 6086 SolverSat, 1846 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1599 GetRequests, 1476 SyntacticMatches, 59 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 1338 SizeOfPredicates, 39 NumberOfNonLiveVariables, 676 ConjunctsInSsa, 162 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 86/103 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: 14]: 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: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 54.7 MB in the beginning and 54.7 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.14 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 125.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.67 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 123.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.78 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 122.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 551.50 ms. Allocated memory is still 151.0 MB. Free memory was 122.6 MB in the beginning and 106.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 20572.87 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 106.6 MB in the beginning and 135.0 MB in the end (delta: -28.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Witness Printer took 67.04 ms. Allocated memory is still 188.7 MB. Free memory was 135.0 MB in the beginning and 131.9 MB in the end (delta: 3.1 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 04:16:17,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_784eff1c-d72f-4880-95a0-2eff09c0b84b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...