./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label22.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_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/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_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/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_98aae780-d8f5-488f-9718-ff54b7fb0532/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 0225da5b84f8f4c67b72023a0b3c6d0183e191e249919cfcf9b3b5872b9a3324 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:47:02,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:47:02,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:47:02,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:47:02,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:47:02,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:47:02,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:47:02,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:47:02,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:47:02,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:47:02,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:47:02,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:47:02,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:47:02,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:47:02,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:47:02,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:47:02,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:47:02,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:47:02,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:47:02,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:47:02,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:47:02,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:47:02,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:47:02,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:47:02,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:47:02,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:47:02,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:47:02,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:47:02,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:47:02,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:47:02,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:47:02,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:47:02,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:47:02,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:47:02,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:47:02,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:47:02,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:47:02,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:47:02,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:47:02,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:47:02,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:47:02,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:47:02,842 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:47:02,843 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:47:02,844 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:47:02,844 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:47:02,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:47:02,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:47:02,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:47:02,846 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:47:02,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:47:02,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:47:02,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:47:02,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:47:02,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:47:02,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:47:02,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:47:02,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:47:02,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:47:02,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:47:02,848 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:47:02,849 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:47:02,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:47:02,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:47:02,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:47:02,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:47:02,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:47:02,850 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:47:02,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:47:02,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:47:02,850 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_98aae780-d8f5-488f-9718-ff54b7fb0532/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0225da5b84f8f4c67b72023a0b3c6d0183e191e249919cfcf9b3b5872b9a3324 [2021-11-23 00:47:03,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:47:03,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:47:03,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:47:03,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:47:03,180 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:47:03,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem15_label22.c [2021-11-23 00:47:03,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/data/2eaa81c0c/39ade905a7bb419087218ab7c768633d/FLAGd3c749125 [2021-11-23 00:47:04,065 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:47:04,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/sv-benchmarks/c/eca-rers2012/Problem15_label22.c [2021-11-23 00:47:04,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/data/2eaa81c0c/39ade905a7bb419087218ab7c768633d/FLAGd3c749125 [2021-11-23 00:47:04,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/data/2eaa81c0c/39ade905a7bb419087218ab7c768633d [2021-11-23 00:47:04,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:47:04,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:47:04,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:47:04,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:47:04,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:47:04,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:47:04" (1/1) ... [2021-11-23 00:47:04,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c41d0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:04, skipping insertion in model container [2021-11-23 00:47:04,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:47:04" (1/1) ... [2021-11-23 00:47:04,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:47:04,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:47:04,566 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_98aae780-d8f5-488f-9718-ff54b7fb0532/sv-benchmarks/c/eca-rers2012/Problem15_label22.c[2348,2361] [2021-11-23 00:47:05,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:47:05,065 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:47:05,129 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_98aae780-d8f5-488f-9718-ff54b7fb0532/sv-benchmarks/c/eca-rers2012/Problem15_label22.c[2348,2361] [2021-11-23 00:47:05,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:47:05,418 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:47:05,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05 WrapperNode [2021-11-23 00:47:05,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:47:05,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:47:05,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:47:05,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:47:05,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,703 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1758 [2021-11-23 00:47:05,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:47:05,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:47:05,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:47:05,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:47:05,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:47:05,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:47:05,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:47:05,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:47:05,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:47:05" (1/1) ... [2021-11-23 00:47:05,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:47:06,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:47:06,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:47:06,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98aae780-d8f5-488f-9718-ff54b7fb0532/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:47:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:47:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:47:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:47:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:47:06,266 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:47:06,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:47:09,332 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:47:27,394 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:47:27,394 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:47:27,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:27 BoogieIcfgContainer [2021-11-23 00:47:27,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:47:27,399 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:47:27,399 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:47:27,413 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:47:27,413 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:47:27" (1/1) ... [2021-11-23 00:47:27,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:47:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 00:47:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 00:47:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:47:27,506 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:27,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:47:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:47:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 00:47:28,347 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 00:47:28,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:47:28,347 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:28,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:47:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:47:41,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:47:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:47:43,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 00:47:43,243 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 00:47:43,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:47:43,243 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:47:43,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:47:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:44,515 WARN L227 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 15 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 00:48:50,132 WARN L227 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 15 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 00:49:17,319 WARN L227 SmtUtils]: Spent 12.44s on a formula simplification. DAG size of input: 20 DAG size of output: 1 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 00:49:25,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:49:36,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:49:38,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:49:48,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:49:58,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:49:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:49:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2021-11-23 00:49:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2021-11-23 00:49:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:49:58,937 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:49:58,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms