./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.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_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/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_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/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_121513ae-8b62-4cad-a229-a5993e130172/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 623f8e570c67201db9fc7be447d74d083955ca752401303f9fce588b7571c3af ............................................................................................................................................................................................................................................................................................................................................................................................ 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 04:13:24,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:13:24,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:13:24,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:13:24,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:13:24,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:13:24,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:13:24,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:13:24,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:13:24,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:13:24,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:13:24,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:13:24,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:13:24,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:13:24,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:13:24,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:13:24,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:13:24,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:13:24,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:13:24,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:13:24,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:13:24,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:13:24,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:13:24,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:13:24,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:13:24,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:13:24,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:13:24,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:13:24,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:13:24,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:13:24,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:13:24,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:13:24,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:13:24,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:13:24,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:13:24,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:13:24,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:13:24,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:13:24,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:13:24,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:13:24,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:13:24,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:13:24,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:13:24,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:13:24,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:13:24,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:13:24,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:13:24,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:13:24,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:13:24,347 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:13:24,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:13:24,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:13:24,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:13:24,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:13:24,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:13:24,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:13:24,356 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:13:24,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:13:24,357 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:13:24,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:13:24,357 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:13:24,357 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:13:24,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:13:24,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:13:24,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:13:24,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:13:24,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:13:24,359 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:13:24,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:13:24,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:13:24,360 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_121513ae-8b62-4cad-a229-a5993e130172/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 623f8e570c67201db9fc7be447d74d083955ca752401303f9fce588b7571c3af [2021-10-29 04:13:24,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:13:24,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:13:24,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:13:24,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:13:24,722 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:13:24,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-29 04:13:24,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/data/ccfecd351/2cef5b3546804e468483e299e563738e/FLAG60018c289 [2021-10-29 04:13:25,310 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:13:25,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-29 04:13:25,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/data/ccfecd351/2cef5b3546804e468483e299e563738e/FLAG60018c289 [2021-10-29 04:13:25,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/data/ccfecd351/2cef5b3546804e468483e299e563738e [2021-10-29 04:13:25,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:13:25,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:13:25,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:13:25,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:13:25,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:13:25,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:13:25" (1/1) ... [2021-10-29 04:13:25,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e907cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:25, skipping insertion in model container [2021-10-29 04:13:25,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:13:25" (1/1) ... [2021-10-29 04:13:25,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:13:25,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:13:26,160 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_121513ae-8b62-4cad-a229-a5993e130172/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-29 04:13:26,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:13:26,246 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:13:26,280 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_121513ae-8b62-4cad-a229-a5993e130172/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-29 04:13:26,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:13:26,354 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:13:26,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26 WrapperNode [2021-10-29 04:13:26,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:13:26,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:13:26,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:13:26,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:13:26,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:13:26,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:13:26,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:13:26,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:13:26,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:13:26,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:13:26,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:13:26,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:13:26,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:13:26" (1/1) ... [2021-10-29 04:13:26,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:13:26,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:13:26,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:13:26,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:13:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:13:26,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:13:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:13:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:13:26,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-10-29 04:13:26,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-10-29 04:13:27,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:13:27,480 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 04:13:27,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:13:27 BoogieIcfgContainer [2021-10-29 04:13:27,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:13:27,492 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:13:27,493 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:13:27,528 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:13:27,536 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:13:27" (1/1) ... [2021-10-29 04:13:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:13:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-10-29 04:13:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-10-29 04:13:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:13:27,695 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:27,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:28,347 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 04:13:28,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:28,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2021-10-29 04:13:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2021-10-29 04:13:28,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:13:28,523 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:28,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:28,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:13:28,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:13:29,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2021-10-29 04:13:29,233 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2021-10-29 04:13:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:13:29,250 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:29,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:29,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:13:29,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:29,544 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 04:13:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2021-10-29 04:13:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2021-10-29 04:13:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 04:13:29,709 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:29,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:29,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:29,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 04:13:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2021-10-29 04:13:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-10-29 04:13:30,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 04:13:30,604 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:30,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:30,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:30,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:30,952 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 04:13:31,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2021-10-29 04:13:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2021-10-29 04:13:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:13:31,325 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:31,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:31,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:31,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-29 04:13:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:31,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2021-10-29 04:13:31,956 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-10-29 04:13:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:13:31,957 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:31,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:32,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 04:13:32,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-29 04:13:32,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:32,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2021-10-29 04:13:32,854 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2021-10-29 04:13:32,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 04:13:32,856 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:32,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:32,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:32,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-29 04:13:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2021-10-29 04:13:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2021-10-29 04:13:33,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 04:13:33,950 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:33,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:33,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:33,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 04:13:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2021-10-29 04:13:34,520 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2021-10-29 04:13:34,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 04:13:34,522 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:34,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:34,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:34,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-29 04:13:34,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:34,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2021-10-29 04:13:34,795 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2021-10-29 04:13:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-29 04:13:34,797 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:34,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:34,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 04:13:34,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-29 04:13:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 39 states and 67 transitions. [2021-10-29 04:13:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 67 transitions. [2021-10-29 04:13:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-29 04:13:35,362 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:35,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:35,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:35,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-29 04:13:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:35,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 39 states and 66 transitions. [2021-10-29 04:13:35,554 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 66 transitions. [2021-10-29 04:13:35,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-29 04:13:35,555 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:35,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:35,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-29 04:13:35,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-10-29 04:13:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 68 transitions. [2021-10-29 04:13:36,248 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 68 transitions. [2021-10-29 04:13:36,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-29 04:13:36,249 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:36,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:36,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-29 04:13:36,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-10-29 04:13:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:36,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 41 states and 72 transitions. [2021-10-29 04:13:36,943 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2021-10-29 04:13:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-29 04:13:36,944 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:36,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:37,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:37,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 7 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-10-29 04:13:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:37,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 42 states and 73 transitions. [2021-10-29 04:13:37,272 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2021-10-29 04:13:37,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-29 04:13:37,273 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:37,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:37,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-29 04:13:37,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-10-29 04:13:38,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:38,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 31 states and 44 transitions. [2021-10-29 04:13:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2021-10-29 04:13:38,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-29 04:13:38,965 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:13:38,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:13:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:13:39,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 04:13:39,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:13:39,171 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2021-10-29 04:13:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:13:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 25 states and 37 transitions. [2021-10-29 04:13:39,624 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2021-10-29 04:13:39,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:13:39,624 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 18 iterations. [2021-10-29 04:13:39,632 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 04:13:40,063 INFO L565 CodeCheckObserver]: Invariant with dag size 25 [2021-10-29 04:13:40,074 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-29 04:13:40,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:13:40 ImpRootNode [2021-10-29 04:13:40,075 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:13:40,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:13:40,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:13:40,076 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:13:40,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:13:27" (3/4) ... [2021-10-29 04:13:40,080 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:13:40,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-10-29 04:13:40,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 04:13:40,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 04:13:40,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:13:40,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:13:40,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:13:40,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:13:40,146 INFO L168 Benchmark]: Toolchain (without parser) took 14427.36 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 38.5 MB in the beginning and 62.8 MB in the end (delta: -24.3 MB). Peak memory consumption was 40.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:13:40,147 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:13:40,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.30 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 38.3 MB in the beginning and 69.8 MB in the end (delta: -31.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:13:40,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.11 ms. Allocated memory is still 96.5 MB. Free memory was 69.8 MB in the beginning and 68.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:13:40,149 INFO L168 Benchmark]: Boogie Preprocessor took 72.94 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 67.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:13:40,151 INFO L168 Benchmark]: RCFGBuilder took 955.04 ms. Allocated memory is still 96.5 MB. Free memory was 67.2 MB in the beginning and 70.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:13:40,151 INFO L168 Benchmark]: CodeCheck took 12582.57 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 70.1 MB in the beginning and 64.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:13:40,152 INFO L168 Benchmark]: Witness Printer took 69.08 ms. Allocated memory is still 142.6 MB. Free memory was 64.8 MB in the beginning and 62.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:13:40,156 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: 12.0s, OverallIterations: 18, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1310720 SDtfs, 373212 SDslu, 516784 SDs, 0 SdLazy, 3671030 SolverSat, 1264618 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4460 GetRequests, 4243 SyntacticMatches, 101 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6080 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 590 NumberOfCodeBlocks, 590 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 573 ConstructedInterpolants, 0 QuantifiedInterpolants, 1819 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1816 ConjunctsInSsa, 191 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 1204/1305 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: 30]: Loop Invariant Derived loop invariant: ((s == 2 * a + 2 && a == 1) || (a == 2 && s == 9)) || (!(2 * a == 2 && t == 2 * a + 1) && !(t == 5 && a == 2)) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.30 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 38.3 MB in the beginning and 69.8 MB in the end (delta: -31.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.11 ms. Allocated memory is still 96.5 MB. Free memory was 69.8 MB in the beginning and 68.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.94 ms. Allocated memory is still 96.5 MB. Free memory was 68.4 MB in the beginning and 67.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 955.04 ms. Allocated memory is still 96.5 MB. Free memory was 67.2 MB in the beginning and 70.1 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 12582.57 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 70.1 MB in the beginning and 64.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 53.6 MB. Max. memory is 16.1 GB. * Witness Printer took 69.08 ms. Allocated memory is still 142.6 MB. Free memory was 64.8 MB in the beginning and 62.8 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 04:13:40,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_121513ae-8b62-4cad-a229-a5993e130172/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...