./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/pnr2.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_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/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_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/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_97c40509-1d94-41d0-8622-68272cdf58eb/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 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:13:12,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:13:12,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:13:12,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:13:12,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:13:12,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:13:12,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:13:12,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:13:12,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:13:12,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:13:12,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:13:12,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:13:12,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:13:12,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:13:12,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:13:12,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:13:12,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:13:12,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:13:12,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:13:12,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:13:12,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:13:12,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:13:12,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:13:12,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:13:12,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:13:12,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:13:12,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:13:12,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:13:12,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:13:12,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:13:12,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:13:12,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:13:12,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:13:12,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:13:12,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:13:12,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:13:12,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:13:12,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:13:12,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:13:12,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:13:12,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:13:12,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:13:12,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:13:12,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:13:12,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:13:12,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:13:12,800 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:13:12,800 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:13:12,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:13:12,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:13:12,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:13:12,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:13:12,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:13:12,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:13:12,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:13:12,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:13:12,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:13:12,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:13:12,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:13:12,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:13:12,804 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:13:12,805 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:13:12,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:13:12,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:13:12,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:13:12,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:13:12,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:13:12,806 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:13:12,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:13:12,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:13:12,807 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_97c40509-1d94-41d0-8622-68272cdf58eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67f3347d26557d25fb6343192d3c90918276f96e14a8e5c63bb68c9eaee65f5f [2021-11-23 01:13:13,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:13:13,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:13:13,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:13:13,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:13:13,165 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:13:13,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/array-tiling/pnr2.c [2021-11-23 01:13:13,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/data/9f07ed284/f24cf4c5d6294b1aa79cecd637ba05d5/FLAG6153f74bc [2021-11-23 01:13:13,745 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:13:13,748 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/sv-benchmarks/c/array-tiling/pnr2.c [2021-11-23 01:13:13,754 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/data/9f07ed284/f24cf4c5d6294b1aa79cecd637ba05d5/FLAG6153f74bc [2021-11-23 01:13:14,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/data/9f07ed284/f24cf4c5d6294b1aa79cecd637ba05d5 [2021-11-23 01:13:14,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:13:14,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:13:14,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:13:14,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:13:14,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:13:14,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727b54ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14, skipping insertion in model container [2021-11-23 01:13:14,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:13:14,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:13:14,450 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_97c40509-1d94-41d0-8622-68272cdf58eb/sv-benchmarks/c/array-tiling/pnr2.c[395,408] [2021-11-23 01:13:14,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:13:14,488 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:13:14,506 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_97c40509-1d94-41d0-8622-68272cdf58eb/sv-benchmarks/c/array-tiling/pnr2.c[395,408] [2021-11-23 01:13:14,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:13:14,559 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:13:14,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14 WrapperNode [2021-11-23 01:13:14,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:13:14,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:13:14,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:13:14,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:13:14,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,624 INFO L137 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2021-11-23 01:13:14,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:13:14,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:13:14,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:13:14,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:13:14,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:13:14,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:13:14,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:13:14,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:13:14,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:14" (1/1) ... [2021-11-23 01:13:14,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:13:14,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:13:14,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:13:14,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97c40509-1d94-41d0-8622-68272cdf58eb/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:13:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:13:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:13:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:13:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:13:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2021-11-23 01:13:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2021-11-23 01:13:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:13:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:13:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:13:14,862 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:13:14,864 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:13:15,119 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:13:15,174 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:13:15,187 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:13:15,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:15 BoogieIcfgContainer [2021-11-23 01:13:15,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:13:15,191 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:13:15,192 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:13:15,201 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:13:15,210 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:15" (1/1) ... [2021-11-23 01:13:15,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:13:15,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2021-11-23 01:13:15,329 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-11-23 01:13:15,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:13:15,334 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:15,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:15,727 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 01:13:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-11-23 01:13:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-23 01:13:15,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:13:15,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:15,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:16,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:13:16,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2021-11-23 01:13:16,841 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2021-11-23 01:13:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 01:13:16,844 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:16,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:13:18,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:18,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 33 states and 55 transitions. [2021-11-23 01:13:18,088 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-23 01:13:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:13:18,090 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:18,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:13:20,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 45 states and 82 transitions. [2021-11-23 01:13:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 82 transitions. [2021-11-23 01:13:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:13:20,986 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:20,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:21,672 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 50 states and 98 transitions. [2021-11-23 01:13:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 98 transitions. [2021-11-23 01:13:22,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 01:13:22,734 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:22,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:23,189 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 54 states and 105 transitions. [2021-11-23 01:13:23,640 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 105 transitions. [2021-11-23 01:13:23,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 01:13:23,641 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:23,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:29,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:29,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 71 states and 145 transitions. [2021-11-23 01:13:29,881 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 145 transitions. [2021-11-23 01:13:29,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 01:13:29,883 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:29,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:13:31,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 72 states and 149 transitions. [2021-11-23 01:13:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 149 transitions. [2021-11-23 01:13:31,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 01:13:31,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:31,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:36,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 81 states and 171 transitions. [2021-11-23 01:13:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 171 transitions. [2021-11-23 01:13:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:13:36,679 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:36,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:13:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:43,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 95 states and 195 transitions. [2021-11-23 01:13:43,887 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 195 transitions. [2021-11-23 01:13:43,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:13:43,889 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:43,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-23 01:13:46,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 99 states and 208 transitions. [2021-11-23 01:13:46,550 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 208 transitions. [2021-11-23 01:13:46,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 01:13:46,553 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:46,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat