./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/pnr5.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_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/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_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/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_eb332f39-034c-4305-914a-371b9c5b710d/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 c6dc18f387244e600c9c46c5a67fb3c0c9875a9a14eb13d3a621343f4a214b0b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:08:15,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:08:15,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:08:15,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:08:15,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:08:15,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:08:15,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:08:15,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:08:15,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:08:15,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:08:15,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:08:15,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:08:15,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:08:15,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:08:15,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:08:15,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:08:15,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:08:15,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:08:15,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:08:15,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:08:15,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:08:15,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:08:15,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:08:15,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:08:15,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:08:15,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:08:15,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:08:15,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:08:15,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:08:15,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:08:15,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:08:15,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:08:15,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:08:15,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:08:15,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:08:15,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:08:15,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:08:15,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:08:15,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:08:15,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:08:15,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:08:15,591 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:08:15,639 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:08:15,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:08:15,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:08:15,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:08:15,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:08:15,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:08:15,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:08:15,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:08:15,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:08:15,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:08:15,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:08:15,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:08:15,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:08:15,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:08:15,644 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:08:15,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:08:15,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:08:15,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:08:15,645 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:08:15,645 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:08:15,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:08:15,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:08:15,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:08:15,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:08:15,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:08:15,647 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:08:15,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:08:15,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:08:15,647 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_eb332f39-034c-4305-914a-371b9c5b710d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6dc18f387244e600c9c46c5a67fb3c0c9875a9a14eb13d3a621343f4a214b0b [2021-11-23 01:08:15,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:08:15,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:08:15,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:08:15,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:08:15,937 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:08:15,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-tiling/pnr5.c [2021-11-23 01:08:16,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/data/7c59b9031/76402842acf34dde8f2951094e24ee65/FLAG1891c69cf [2021-11-23 01:08:16,450 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:08:16,451 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/sv-benchmarks/c/array-tiling/pnr5.c [2021-11-23 01:08:16,459 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/data/7c59b9031/76402842acf34dde8f2951094e24ee65/FLAG1891c69cf [2021-11-23 01:08:16,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/data/7c59b9031/76402842acf34dde8f2951094e24ee65 [2021-11-23 01:08:16,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:08:16,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:08:16,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:08:16,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:08:16,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:08:16,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:16" (1/1) ... [2021-11-23 01:08:16,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670eac96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:16, skipping insertion in model container [2021-11-23 01:08:16,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:16" (1/1) ... [2021-11-23 01:08:16,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:08:16,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:08:17,076 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_eb332f39-034c-4305-914a-371b9c5b710d/sv-benchmarks/c/array-tiling/pnr5.c[395,408] [2021-11-23 01:08:17,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:08:17,142 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:08:17,166 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_eb332f39-034c-4305-914a-371b9c5b710d/sv-benchmarks/c/array-tiling/pnr5.c[395,408] [2021-11-23 01:08:17,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:08:17,204 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:08:17,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17 WrapperNode [2021-11-23 01:08:17,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:08:17,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:08:17,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:08:17,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:08:17,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,267 INFO L137 Inliner]: procedures = 17, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2021-11-23 01:08:17,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:08:17,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:08:17,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:08:17,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:08:17,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:08:17,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:08:17,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:08:17,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:08:17,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:08:17,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:08:17,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:08:17,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb332f39-034c-4305-914a-371b9c5b710d/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:08:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:08:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:08:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:08:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:08:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2021-11-23 01:08:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2021-11-23 01:08:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:08:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:08:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:08:17,456 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:08:17,458 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:08:17,641 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:08:17,699 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:08:17,699 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:08:17,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:17 BoogieIcfgContainer [2021-11-23 01:08:17,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:08:17,702 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:08:17,702 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:08:17,712 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:08:17,712 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:17" (1/1) ... [2021-11-23 01:08:17,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:08:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:17,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2021-11-23 01:08:17,780 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2021-11-23 01:08:17,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:08:17,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:17,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:18,294 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 01:08:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2021-11-23 01:08:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2021-11-23 01:08:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 01:08:18,378 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:18,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:19,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 39 states and 60 transitions. [2021-11-23 01:08:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2021-11-23 01:08:19,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:08:19,846 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:19,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:20,641 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:22,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 55 states and 92 transitions. [2021-11-23 01:08:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 92 transitions. [2021-11-23 01:08:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 01:08:22,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:22,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 66 states and 114 transitions. [2021-11-23 01:08:25,455 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2021-11-23 01:08:25,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:08:25,460 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:25,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:29,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 77 states and 137 transitions. [2021-11-23 01:08:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 137 transitions. [2021-11-23 01:08:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:08:29,363 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:29,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:29,965 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 90 states and 163 transitions. [2021-11-23 01:08:34,114 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 163 transitions. [2021-11-23 01:08:34,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 01:08:34,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:34,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 117 states and 217 transitions. [2021-11-23 01:08:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 217 transitions. [2021-11-23 01:08:46,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 01:08:46,566 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:46,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:46,733 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:47,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 118 states and 219 transitions. [2021-11-23 01:08:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 219 transitions. [2021-11-23 01:08:47,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 01:08:47,289 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:47,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:47,442 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 27 proven. 14 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:08:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 119 states and 221 transitions. [2021-11-23 01:08:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 221 transitions. [2021-11-23 01:08:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 01:08:49,001 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:49,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat