./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/pnr4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4 --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 c2f943c7ce97bf9be3e11b9d2df150d740ebe8f456342884d8ad0d40610fb008 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 01:28:04,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 01:28:04,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 01:28:04,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 01:28:04,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 01:28:04,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 01:28:04,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 01:28:04,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 01:28:04,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 01:28:04,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 01:28:04,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 01:28:04,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 01:28:04,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 01:28:04,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 01:28:04,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 01:28:04,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 01:28:04,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 01:28:04,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 01:28:04,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 01:28:04,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 01:28:04,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 01:28:04,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 01:28:04,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 01:28:04,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 01:28:04,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 01:28:04,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 01:28:04,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 01:28:04,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 01:28:04,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 01:28:04,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 01:28:04,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 01:28:04,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 01:28:04,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 01:28:04,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 01:28:04,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 01:28:04,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 01:28:04,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 01:28:04,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 01:28:04,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 01:28:04,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 01:28:04,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 01:28:04,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-15 01:28:04,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 01:28:04,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 01:28:04,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 01:28:04,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 01:28:04,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 01:28:04,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 01:28:04,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 01:28:04,164 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-15 01:28:04,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 01:28:04,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-15 01:28:04,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 01:28:04,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 01:28:04,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 01:28:04,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 01:28:04,170 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-15 01:28:04,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 01:28:04,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 01:28:04,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 01:28:04,171 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 01:28:04,171 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 01:28:04,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 01:28:04,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:28:04,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 01:28:04,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 01:28:04,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 01:28:04,171 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 01:28:04,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 01:28:04,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 01:28:04,172 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_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2f943c7ce97bf9be3e11b9d2df150d740ebe8f456342884d8ad0d40610fb008 [2022-12-15 01:28:04,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 01:28:04,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 01:28:04,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 01:28:04,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 01:28:04,371 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 01:28:04,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/array-tiling/pnr4.c [2022-12-15 01:28:06,971 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 01:28:07,122 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 01:28:07,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/sv-benchmarks/c/array-tiling/pnr4.c [2022-12-15 01:28:07,128 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/data/3f4a95a41/a20dd9cd1c0149da98eca1911e1274a6/FLAGe956bf53f [2022-12-15 01:28:07,142 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/data/3f4a95a41/a20dd9cd1c0149da98eca1911e1274a6 [2022-12-15 01:28:07,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 01:28:07,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 01:28:07,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 01:28:07,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 01:28:07,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 01:28:07,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507117a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07, skipping insertion in model container [2022-12-15 01:28:07,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 01:28:07,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 01:28:07,272 WARN L237 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_81d8140f-4c19-4359-b17c-14f90dccf10f/sv-benchmarks/c/array-tiling/pnr4.c[395,408] [2022-12-15 01:28:07,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:28:07,295 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 01:28:07,304 WARN L237 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_81d8140f-4c19-4359-b17c-14f90dccf10f/sv-benchmarks/c/array-tiling/pnr4.c[395,408] [2022-12-15 01:28:07,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:28:07,321 INFO L208 MainTranslator]: Completed translation [2022-12-15 01:28:07,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07 WrapperNode [2022-12-15 01:28:07,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 01:28:07,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 01:28:07,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 01:28:07,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 01:28:07,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,357 INFO L138 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-12-15 01:28:07,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 01:28:07,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 01:28:07,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 01:28:07,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 01:28:07,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 01:28:07,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 01:28:07,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 01:28:07,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 01:28:07,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:28:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 01:28:07,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 01:28:07,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81d8140f-4c19-4359-b17c-14f90dccf10f/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 01:28:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-15 01:28:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-15 01:28:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 01:28:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-15 01:28:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2022-12-15 01:28:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2022-12-15 01:28:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 01:28:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 01:28:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 01:28:07,510 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 01:28:07,511 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 01:28:07,656 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 01:28:07,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 01:28:07,701 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-15 01:28:07,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:28:07 BoogieIcfgContainer [2022-12-15 01:28:07,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 01:28:07,704 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 01:28:07,704 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 01:28:07,711 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 01:28:07,711 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:28:07" (1/1) ... [2022-12-15 01:28:07,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 01:28:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:07,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2022-12-15 01:28:07,766 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2022-12-15 01:28:07,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 01:28:07,769 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:07,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:08,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:28:08,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-12-15 01:28:08,158 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-12-15 01:28:08,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-15 01:28:08,159 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:08,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:09,214 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 01:28:09,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 35 states and 54 transitions. [2022-12-15 01:28:09,730 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2022-12-15 01:28:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-15 01:28:09,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:09,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 01:28:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:11,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 46 states and 76 transitions. [2022-12-15 01:28:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2022-12-15 01:28:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-15 01:28:11,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:11,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 01:28:13,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:13,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 58 states and 101 transitions. [2022-12-15 01:28:13,398 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 101 transitions. [2022-12-15 01:28:13,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-15 01:28:13,399 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:13,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:14,038 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 01:28:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:16,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 67 states and 118 transitions. [2022-12-15 01:28:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 118 transitions. [2022-12-15 01:28:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-15 01:28:16,395 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:16,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 01:28:23,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:23,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 89 states and 166 transitions. [2022-12-15 01:28:23,410 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 166 transitions. [2022-12-15 01:28:23,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-15 01:28:23,411 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:23,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:23,570 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 01:28:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 90 states and 168 transitions. [2022-12-15 01:28:23,919 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 168 transitions. [2022-12-15 01:28:23,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-15 01:28:23,920 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:23,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:28:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 16 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-15 01:28:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:28:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 91 states and 171 transitions. [2022-12-15 01:28:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 171 transitions. [2022-12-15 01:28:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-12-15 01:28:24,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:28:24,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:28:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat