./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ --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 8ebfca330b3994d7218606361db90c9a54d0fccff0831793ddcabdbf710607d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:23:23,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:23:23,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:23:23,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:23:23,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:23:23,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:23:23,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:23:23,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:23:23,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:23:23,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:23:23,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:23:23,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:23:23,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:23:23,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:23:23,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:23:23,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:23:23,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:23:23,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:23:23,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:23:23,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:23:23,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:23:23,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:23:23,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:23:23,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:23:23,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:23:23,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:23:23,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:23:23,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:23:23,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:23:23,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:23:23,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:23:23,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:23:23,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:23:23,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:23:23,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:23:23,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:23:23,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:23:23,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:23:23,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:23:23,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:23:23,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:23:23,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:23:23,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:23:23,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:23:23,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:23:23,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:23:23,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:23:23,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:23:23,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:23:23,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:23:23,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:23:23,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:23:23,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:23:23,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:23:23,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:23:23,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:23:23,242 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:23:23,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:23:23,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:23:23,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:23:23,243 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:23:23,243 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:23:23,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:23:23,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:23,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:23:23,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:23:23,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:23:23,244 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:23:23,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:23:23,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:23:23,245 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_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebfca330b3994d7218606361db90c9a54d0fccff0831793ddcabdbf710607d1 [2021-11-23 00:23:23,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:23:23,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:23:23,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:23:23,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:23:23,520 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:23:23,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-programs/Problem101_label17.c [2021-11-23 00:23:23,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/data/d31edef1e/7ed508380ecf4b928d522f92accf131a/FLAG6d8e10572 [2021-11-23 00:23:26,472 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:23:26,475 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/sv-benchmarks/c/eca-programs/Problem101_label17.c [2021-11-23 00:23:26,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/data/d31edef1e/7ed508380ecf4b928d522f92accf131a/FLAG6d8e10572 [2021-11-23 00:23:26,998 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/data/d31edef1e/7ed508380ecf4b928d522f92accf131a [2021-11-23 00:23:27,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:23:27,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:23:27,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:27,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:23:27,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:23:27,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:26" (1/1) ... [2021-11-23 00:23:27,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4931d847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:27, skipping insertion in model container [2021-11-23 00:23:27,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:26" (1/1) ... [2021-11-23 00:23:27,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:23:27,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:23:39,718 WARN L230 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_387d8529-cb03-44a3-bc10-597abbb0f44d/sv-benchmarks/c/eca-programs/Problem101_label17.c[2767650,2767663] [2021-11-23 00:23:39,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:39,810 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:23:47,052 WARN L230 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_387d8529-cb03-44a3-bc10-597abbb0f44d/sv-benchmarks/c/eca-programs/Problem101_label17.c[2767650,2767663] [2021-11-23 00:23:47,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:48,017 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:23:48,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48 WrapperNode [2021-11-23 00:23:48,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:48,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:48,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:23:48,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:23:48,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:48,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:51,219 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83780 [2021-11-23 00:23:51,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:51,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:23:51,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:23:51,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:23:51,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:51,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:51,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:51,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:53,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:53,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:53,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:54,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:23:54,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:23:54,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:23:54,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:23:54,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:48" (1/1) ... [2021-11-23 00:23:54,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:54,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:23:54,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:23:54,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_387d8529-cb03-44a3-bc10-597abbb0f44d/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:23:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:23:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:23:54,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:23:54,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:23:54,408 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:23:54,409 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:24:30,235 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:24:31,601 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:24:31,601 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:24:31,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:31 BoogieIcfgContainer [2021-11-23 00:24:31,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:24:31,616 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:24:31,616 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:24:31,626 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:24:31,627 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:31" (1/1) ... [2021-11-23 00:24:31,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:24:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:31,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20217 states to 10135 states and 20217 transitions. [2021-11-23 00:24:31,903 INFO L276 IsEmpty]: Start isEmpty. Operand 10135 states and 20217 transitions. [2021-11-23 00:24:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10086 [2021-11-23 00:24:32,677 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:32,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:25:39,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31170 states to 20218 states and 31170 transitions. [2021-11-23 00:25:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 20218 states and 31170 transitions. [2021-11-23 00:25:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10090 [2021-11-23 00:25:40,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:40,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat