./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB --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 --- [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-dbf71c6-m [2022-10-17 16:58:04,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:58:04,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:58:04,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:58:04,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:58:04,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:58:04,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:58:04,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:58:04,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:58:04,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:58:04,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:58:04,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:58:04,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:58:04,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:58:04,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:58:04,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:58:04,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:58:04,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:58:04,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:58:04,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:58:04,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:58:04,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:58:04,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:58:04,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:58:04,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:58:04,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:58:04,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:58:04,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:58:04,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:58:04,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:58:04,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:58:04,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:58:04,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:58:04,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:58:04,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:58:04,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:58:04,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:58:04,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:58:04,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:58:04,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:58:04,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:58:04,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:58:04,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:58:04,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:58:04,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:58:04,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:58:04,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:58:04,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:58:04,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:58:04,336 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:58:04,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:58:04,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:58:04,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:58:04,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:58:04,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:58:04,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:58:04,339 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:58:04,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:58:04,339 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:58:04,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:58:04,340 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:58:04,340 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:58:04,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:58:04,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:04,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:58:04,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:58:04,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:58:04,349 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:58:04,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:58:04,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:58:04,350 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_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e32269e91be552d606173d0b8eafd4ffa81c0e735dd375e4417d1ccfc27eaf5e [2022-10-17 16:58:04,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:58:04,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:58:04,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:58:04,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:58:04,705 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:58:04,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-tiling/pnr3.c [2022-10-17 16:58:04,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/data/f1ff2bf88/8b88e50d4c1e4d0bb130b88193fdd606/FLAGb9636f5ee [2022-10-17 16:58:05,234 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:58:05,235 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/sv-benchmarks/c/array-tiling/pnr3.c [2022-10-17 16:58:05,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/data/f1ff2bf88/8b88e50d4c1e4d0bb130b88193fdd606/FLAGb9636f5ee [2022-10-17 16:58:05,621 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/data/f1ff2bf88/8b88e50d4c1e4d0bb130b88193fdd606 [2022-10-17 16:58:05,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:58:05,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:58:05,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:05,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:58:05,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:58:05,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b115af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05, skipping insertion in model container [2022-10-17 16:58:05,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:58:05,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:58:05,851 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_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/sv-benchmarks/c/array-tiling/pnr3.c[395,408] [2022-10-17 16:58:05,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:05,879 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:58:05,890 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_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/sv-benchmarks/c/array-tiling/pnr3.c[395,408] [2022-10-17 16:58:05,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:05,913 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:58:05,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05 WrapperNode [2022-10-17 16:58:05,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:05,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:05,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:58:05,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:58:05,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,954 INFO L138 Inliner]: procedures = 17, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2022-10-17 16:58:05,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:05,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:58:05,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:58:05,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:58:05,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:05,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:06,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:06,009 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:06,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:06,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:58:06,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:58:06,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:58:06,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:58:06,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:05" (1/1) ... [2022-10-17 16:58:06,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:06,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:58:06,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:58:06,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78458737-f7b3-4af8-9ccb-6ccc96b9fbef/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:58:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:58:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:58:06,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:58:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:58:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2022-10-17 16:58:06,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2022-10-17 16:58:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:58:06,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:58:06,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:58:06,163 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:58:06,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:58:06,388 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:58:06,517 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:58:06,520 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:58:06,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:06 BoogieIcfgContainer [2022-10-17 16:58:06,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:58:06,524 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:58:06,524 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:58:06,534 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:58:06,534 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:06" (1/1) ... [2022-10-17 16:58:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:58:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2022-10-17 16:58:06,627 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-10-17 16:58:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:58:06,631 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:06,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:07,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:58:07,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-10-17 16:58:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-10-17 16:58:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 16:58:07,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:07,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:58:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:08,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 31 states and 48 transitions. [2022-10-17 16:58:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2022-10-17 16:58:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-17 16:58:08,968 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:08,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:58:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 40 states and 66 transitions. [2022-10-17 16:58:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2022-10-17 16:58:11,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 16:58:11,064 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:11,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:58:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 50 states and 86 transitions. [2022-10-17 16:58:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 86 transitions. [2022-10-17 16:58:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-17 16:58:13,788 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:13,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:58:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:19,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 67 states and 121 transitions. [2022-10-17 16:58:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 121 transitions. [2022-10-17 16:58:19,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-17 16:58:19,967 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:58:20,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 68 states and 123 transitions. [2022-10-17 16:58:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 123 transitions. [2022-10-17 16:58:20,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:58:20,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:20,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat