./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e --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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:49:17,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:49:17,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:49:17,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:49:17,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:49:17,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:49:17,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:49:17,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:49:17,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:49:17,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:49:17,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:49:17,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:49:17,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:49:17,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:49:17,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:49:17,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:49:17,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:49:17,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:49:17,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:49:17,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:49:17,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:49:17,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:49:17,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:49:17,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:49:17,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:49:17,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:49:17,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:49:17,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:49:17,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:49:17,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:49:17,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:49:17,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:49:17,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:49:17,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:49:17,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:49:17,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:49:17,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:49:17,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:49:17,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:49:17,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:49:17,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:49:17,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-13 22:49:17,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:49:17,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:49:17,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 22:49:17,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 22:49:17,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:49:17,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:49:17,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:49:17,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 22:49:17,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:49:17,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 22:49:17,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:49:17,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 22:49:17,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:49:17,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 22:49:17,400 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 22:49:17,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 22:49:17,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:49:17,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 22:49:17,401 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:49:17,401 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:49:17,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:49:17,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:49:17,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:49:17,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:49:17,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 22:49:17,404 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:49:17,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:49:17,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 22:49:17,404 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_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2021-11-13 22:49:17,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:49:17,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:49:17,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:49:17,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:49:17,755 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:49:17,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-13 22:49:17,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/data/5323cca16/598524b2eef74aa78cb77277310dbf87/FLAG17588aefc [2021-11-13 22:49:18,492 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:49:18,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-11-13 22:49:18,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/data/5323cca16/598524b2eef74aa78cb77277310dbf87/FLAG17588aefc [2021-11-13 22:49:18,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/data/5323cca16/598524b2eef74aa78cb77277310dbf87 [2021-11-13 22:49:18,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:49:18,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:49:18,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:49:18,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:49:18,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:49:18,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:49:18" (1/1) ... [2021-11-13 22:49:18,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ee1de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:18, skipping insertion in model container [2021-11-13 22:49:18,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:49:18" (1/1) ... [2021-11-13 22:49:18,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:49:18,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:49:19,102 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_9c7eae40-1e10-425e-8a5f-dfe436e022a4/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-13 22:49:19,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:49:19,147 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:49:19,164 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_9c7eae40-1e10-425e-8a5f-dfe436e022a4/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i[893,906] [2021-11-13 22:49:19,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:49:19,195 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:49:19,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19 WrapperNode [2021-11-13 22:49:19,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:49:19,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:49:19,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:49:19,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:49:19,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:49:19,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:49:19,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:49:19,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:49:19,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:49:19,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:49:19,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:49:19,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:49:19,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:49:19,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:49:19,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:49:19,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:49:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 22:49:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 22:49:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:49:19,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:49:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-13 22:49:19,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-13 22:49:19,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:49:19,891 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 22:49:19,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:49:19 BoogieIcfgContainer [2021-11-13 22:49:19,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:49:19,895 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:49:19,896 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:49:19,908 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:49:19,908 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:49:19" (1/1) ... [2021-11-13 22:49:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:49:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:19,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 47 states and 79 transitions. [2021-11-13 22:49:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2021-11-13 22:49:19,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 22:49:20,000 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:20,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:49:20,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:20,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 49 states and 96 transitions. [2021-11-13 22:49:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2021-11-13 22:49:20,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 22:49:20,337 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:20,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:20,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:49:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 49 states and 95 transitions. [2021-11-13 22:49:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 95 transitions. [2021-11-13 22:49:20,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 22:49:20,628 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:20,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 22:49:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 49 states and 94 transitions. [2021-11-13 22:49:20,814 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 94 transitions. [2021-11-13 22:49:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 22:49:20,816 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:20,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 22:49:21,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:21,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 49 states and 93 transitions. [2021-11-13 22:49:21,132 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 93 transitions. [2021-11-13 22:49:21,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 22:49:21,139 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:21,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 22:49:21,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 51 states and 96 transitions. [2021-11-13 22:49:21,483 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 96 transitions. [2021-11-13 22:49:21,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-13 22:49:21,484 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:21,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 22:49:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:21,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 52 states and 97 transitions. [2021-11-13 22:49:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 97 transitions. [2021-11-13 22:49:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-13 22:49:21,594 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:21,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 22:49:21,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 53 states and 97 transitions. [2021-11-13 22:49:21,689 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 97 transitions. [2021-11-13 22:49:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 22:49:21,691 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:21,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-13 22:49:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 56 states and 103 transitions. [2021-11-13 22:49:21,799 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 103 transitions. [2021-11-13 22:49:21,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-13 22:49:21,805 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:21,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:21,887 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-13 22:49:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 57 states and 104 transitions. [2021-11-13 22:49:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 104 transitions. [2021-11-13 22:49:21,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-13 22:49:21,907 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:21,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:21,991 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-13 22:49:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 59 states and 106 transitions. [2021-11-13 22:49:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 106 transitions. [2021-11-13 22:49:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 22:49:22,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:22,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-13 22:49:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 62 states and 111 transitions. [2021-11-13 22:49:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 111 transitions. [2021-11-13 22:49:22,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-13 22:49:22,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:22,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-13 22:49:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 62 states and 109 transitions. [2021-11-13 22:49:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 109 transitions. [2021-11-13 22:49:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-13 22:49:22,661 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:22,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2021-11-13 22:49:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:22,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 58 states and 103 transitions. [2021-11-13 22:49:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 103 transitions. [2021-11-13 22:49:22,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-13 22:49:22,978 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:22,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-13 22:49:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 58 states and 102 transitions. [2021-11-13 22:49:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 102 transitions. [2021-11-13 22:49:23,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-13 22:49:23,227 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:23,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-11-13 22:49:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 58 states and 101 transitions. [2021-11-13 22:49:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 101 transitions. [2021-11-13 22:49:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-13 22:49:23,729 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:23,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-13 22:49:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 52 states and 91 transitions. [2021-11-13 22:49:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 91 transitions. [2021-11-13 22:49:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-13 22:49:23,840 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:23,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-13 22:49:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:23,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 52 states and 90 transitions. [2021-11-13 22:49:23,976 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2021-11-13 22:49:23,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-13 22:49:23,978 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:23,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-13 22:49:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 52 states and 89 transitions. [2021-11-13 22:49:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 89 transitions. [2021-11-13 22:49:24,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-13 22:49:24,156 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:24,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-13 22:49:24,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 54 states and 92 transitions. [2021-11-13 22:49:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 92 transitions. [2021-11-13 22:49:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 22:49:24,281 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:24,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:24,342 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 48 proven. 4 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-13 22:49:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 57 states and 97 transitions. [2021-11-13 22:49:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 97 transitions. [2021-11-13 22:49:24,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 22:49:24,389 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:24,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-13 22:49:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 57 states and 96 transitions. [2021-11-13 22:49:24,909 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 96 transitions. [2021-11-13 22:49:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 22:49:24,910 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:24,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-13 22:49:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:25,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 59 states and 99 transitions. [2021-11-13 22:49:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 99 transitions. [2021-11-13 22:49:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-13 22:49:25,673 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:25,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-13 22:49:26,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:26,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 66 states and 114 transitions. [2021-11-13 22:49:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2021-11-13 22:49:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-13 22:49:26,831 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:26,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2021-11-13 22:49:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 72 states and 129 transitions. [2021-11-13 22:49:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 129 transitions. [2021-11-13 22:49:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-13 22:49:27,640 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:27,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 51 proven. 16 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2021-11-13 22:49:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:28,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 73 states and 130 transitions. [2021-11-13 22:49:28,107 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 130 transitions. [2021-11-13 22:49:28,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-13 22:49:28,109 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:28,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 56 proven. 16 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2021-11-13 22:49:28,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 77 states and 139 transitions. [2021-11-13 22:49:28,608 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 139 transitions. [2021-11-13 22:49:28,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-13 22:49:28,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:28,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-11-13 22:49:28,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 78 states and 141 transitions. [2021-11-13 22:49:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 141 transitions. [2021-11-13 22:49:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-13 22:49:28,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:28,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:28,808 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-13 22:49:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 80 states and 145 transitions. [2021-11-13 22:49:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 145 transitions. [2021-11-13 22:49:29,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-13 22:49:29,420 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:29,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-13 22:49:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:30,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 84 states and 154 transitions. [2021-11-13 22:49:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 154 transitions. [2021-11-13 22:49:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-13 22:49:30,183 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:30,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 40 proven. 5 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-13 22:49:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 92 states and 170 transitions. [2021-11-13 22:49:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 170 transitions. [2021-11-13 22:49:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-13 22:49:31,369 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:49:31,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:49:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:49:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2021-11-13 22:49:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:49:32,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 55 states and 93 transitions. [2021-11-13 22:49:32,411 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 93 transitions. [2021-11-13 22:49:32,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 22:49:32,412 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 32 iterations. [2021-11-13 22:49:32,422 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-13 22:49:32,670 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 22:49:32,675 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 22:49:32,675 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 22:49:32,676 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 22:49:32,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:49:32 ImpRootNode [2021-11-13 22:49:32,677 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 22:49:32,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 22:49:32,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 22:49:32,678 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 22:49:32,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:49:19" (3/4) ... [2021-11-13 22:49:32,687 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 22:49:32,695 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-13 22:49:32,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 22:49:32,702 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 22:49:32,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 22:49:32,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 22:49:32,775 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 22:49:32,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 22:49:32,777 INFO L158 Benchmark]: Toolchain (without parser) took 13948.70ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 100.3MB in the beginning and 93.6MB in the end (delta: 6.7MB). Peak memory consumption was 73.6MB. Max. memory is 16.1GB. [2021-11-13 22:49:32,777 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 116.2MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:49:32,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.30ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 116.2MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 22:49:32,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.83ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 114.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:49:32,779 INFO L158 Benchmark]: Boogie Preprocessor took 27.02ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 113.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:49:32,780 INFO L158 Benchmark]: RCFGBuilder took 594.70ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 100.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 22:49:32,781 INFO L158 Benchmark]: CodeCheck took 12781.52ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 100.1MB in the beginning and 97.7MB in the end (delta: 2.4MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2021-11-13 22:49:32,781 INFO L158 Benchmark]: Witness Printer took 98.42ms. Allocated memory is still 209.7MB. Free memory was 97.7MB in the beginning and 93.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 22:49:32,784 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 32, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5370 SdHoareTripleChecker+Valid, 14538.64ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1143 mSDsluCounter, 4304 SdHoareTripleChecker+Invalid, 11879.13ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1401 mSDsCounter, 2960 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8321 IncrementalHoareTripleChecker+Invalid, 11281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2960 mSolverCounterUnsat, 2903 mSDtfsCounter, 8321 mSolverCounterSat, 362.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15344 GetRequests, 14875 SyntacticMatches, 289 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16140 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1969 NumberOfCodeBlocks, 1969 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1938 ConstructedInterpolants, 0 QuantifiedInterpolants, 3478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 17 PerfectInterpolantSequences, 6559/6633 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - 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 0.43ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 116.2MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.30ms. Allocated memory is still 142.6MB. Free memory was 100.0MB in the beginning and 116.2MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.83ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 114.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.02ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 113.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.70ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 100.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 12781.52ms. Allocated memory was 142.6MB in the beginning and 209.7MB in the end (delta: 67.1MB). Free memory was 100.1MB in the beginning and 97.7MB in the end (delta: 2.4MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Witness Printer took 98.42ms. Allocated memory is still 209.7MB. Free memory was 97.7MB in the beginning and 93.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 22:49:32,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c7eae40-1e10-425e-8a5f-dfe436e022a4/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE