./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/pnr3.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_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/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_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/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_b5c8a281-d807-4c54-9c33-a096110cb605/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 e32269e91be552d606173d0b8eafd4ffa81c0e735dd375e4417d1ccfc27eaf5e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:23:28,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:23:28,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:23:28,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:23:28,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:23:28,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:23:28,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:23:28,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:23:28,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:23:28,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:23:28,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:23:28,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:23:28,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:23:28,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:23:28,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:23:28,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:23:28,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:23:28,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:23:28,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:23:28,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:23:28,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:23:28,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:23:28,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:23:28,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:23:28,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:23:28,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:23:28,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:23:28,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:23:28,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:23:28,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:23:28,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:23:28,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:23:28,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:23:28,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:23:28,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:23:28,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:23:28,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:23:28,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:23:28,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:23:28,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:23:28,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:23:28,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:23:28,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:23:28,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:23:28,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:23:28,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:23:28,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:23:28,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:23:28,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:23:28,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:23:28,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:23:28,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:23:28,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:23:28,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:23:28,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:23:28,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:23:28,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:23:28,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:23:28,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:23:28,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:23:28,795 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:23:28,795 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:23:28,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:23:28,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:28,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:23:28,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:23:28,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:23:28,797 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:23:28,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:23:28,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:23:28,797 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_b5c8a281-d807-4c54-9c33-a096110cb605/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e32269e91be552d606173d0b8eafd4ffa81c0e735dd375e4417d1ccfc27eaf5e [2021-11-23 00:23:29,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:23:29,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:23:29,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:23:29,091 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:23:29,092 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:23:29,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-tiling/pnr3.c [2021-11-23 00:23:29,184 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/data/c41f95c67/437077db1892419b831372e3489173a7/FLAGbbcf12155 [2021-11-23 00:23:29,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:23:29,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/sv-benchmarks/c/array-tiling/pnr3.c [2021-11-23 00:23:29,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/data/c41f95c67/437077db1892419b831372e3489173a7/FLAGbbcf12155 [2021-11-23 00:23:30,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/data/c41f95c67/437077db1892419b831372e3489173a7 [2021-11-23 00:23:30,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:23:30,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:23:30,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:30,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:23:30,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:23:30,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e002d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30, skipping insertion in model container [2021-11-23 00:23:30,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:23:30,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:23:30,212 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_b5c8a281-d807-4c54-9c33-a096110cb605/sv-benchmarks/c/array-tiling/pnr3.c[395,408] [2021-11-23 00:23:30,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:30,240 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:23:30,250 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_b5c8a281-d807-4c54-9c33-a096110cb605/sv-benchmarks/c/array-tiling/pnr3.c[395,408] [2021-11-23 00:23:30,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:23:30,272 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:23:30,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30 WrapperNode [2021-11-23 00:23:30,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:23:30,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:30,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:23:30,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:23:30,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,315 INFO L137 Inliner]: procedures = 17, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2021-11-23 00:23:30,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:23:30,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:23:30,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:23:30,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:23:30,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:23:30,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:23:30,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:23:30,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:23:30,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:23:30,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:23:30,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:23:30,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c8a281-d807-4c54-9c33-a096110cb605/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:23:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:23:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:23:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 00:23:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 00:23:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2021-11-23 00:23:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2021-11-23 00:23:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:23:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:23:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 00:23:30,484 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:23:30,485 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:23:30,645 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:23:30,721 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:23:30,722 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 00:23:30,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:30 BoogieIcfgContainer [2021-11-23 00:23:30,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:23:30,734 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:23:30,734 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:23:30,767 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:23:30,768 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:23:30" (1/1) ... [2021-11-23 00:23:30,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:23:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:30,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2021-11-23 00:23:30,868 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-11-23 00:23:30,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:23:30,886 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:30,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:31,192 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 00:23:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2021-11-23 00:23:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-11-23 00:23:31,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 00:23:31,284 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:31,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:23:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2021-11-23 00:23:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2021-11-23 00:23:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 00:23:32,470 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:32,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:23:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:33,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 40 states and 67 transitions. [2021-11-23 00:23:33,950 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions. [2021-11-23 00:23:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 00:23:33,953 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:33,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:23:36,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:36,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 50 states and 88 transitions. [2021-11-23 00:23:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 88 transitions. [2021-11-23 00:23:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:23:36,132 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:36,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:23:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:41,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 67 states and 124 transitions. [2021-11-23 00:23:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 124 transitions. [2021-11-23 00:23:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 00:23:41,408 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:41,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:23:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:23:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:23:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 68 states and 126 transitions. [2021-11-23 00:23:41,808 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 126 transitions. [2021-11-23 00:23:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 00:23:41,810 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:23:41,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:23:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:39,150 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 00:28:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 75 states and 141 transitions. [2021-11-23 00:28:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 141 transitions. [2021-11-23 00:28:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 00:28:40,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:40,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 00:28:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 76 states and 143 transitions. [2021-11-23 00:28:41,609 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 143 transitions. [2021-11-23 00:28:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 00:28:41,612 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:41,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:42,410 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 00:28:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 87 states and 163 transitions. [2021-11-23 00:28:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 163 transitions. [2021-11-23 00:28:44,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 00:28:44,740 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:44,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 00:28:46,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:46,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 94 states and 180 transitions. [2021-11-23 00:28:46,435 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 180 transitions. [2021-11-23 00:28:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 00:28:46,441 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:46,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 00:28:54,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 110 states and 217 transitions. [2021-11-23 00:28:54,237 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 217 transitions. [2021-11-23 00:28:54,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 00:28:54,240 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:54,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:28:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 00:28:55,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:28:55,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 111 states and 219 transitions. [2021-11-23 00:28:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 219 transitions. [2021-11-23 00:28:55,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 00:28:55,182 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:28:55,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:28:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat