./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label04.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_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/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_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/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_b3545d5b-38d7-4b88-8e32-7c92c43af003/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 7526302199d1f3bb6abcb37def785df856d340db371e981c5460527e95177be0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:19:15,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:19:15,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:19:15,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:19:15,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:19:15,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:19:15,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:19:15,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:19:15,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:19:15,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:19:15,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:19:15,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:19:15,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:19:15,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:19:15,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:19:15,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:19:15,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:19:15,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:19:15,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:19:15,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:19:15,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:19:15,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:19:15,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:19:15,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:19:15,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:19:15,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:19:15,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:19:15,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:19:15,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:19:15,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:19:15,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:19:15,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:19:15,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:19:15,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:19:15,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:19:15,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:19:15,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:19:15,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:19:15,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:19:15,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:19:15,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:19:15,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:19:15,337 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:19:15,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:19:15,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:19:15,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:19:15,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:19:15,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:19:15,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:19:15,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:19:15,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:19:15,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:19:15,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:19:15,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:19:15,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:19:15,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:19:15,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:19:15,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:19:15,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:19:15,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:19:15,353 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:19:15,353 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:19:15,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:19:15,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:19:15,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:19:15,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:19:15,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:19:15,355 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:19:15,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:19:15,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:19:15,355 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_b3545d5b-38d7-4b88-8e32-7c92c43af003/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7526302199d1f3bb6abcb37def785df856d340db371e981c5460527e95177be0 [2021-11-23 01:19:15,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:19:15,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:19:15,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:19:15,668 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:19:15,670 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:19:15,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem15_label04.c [2021-11-23 01:19:15,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/data/1fea612b5/2e6334de24da45a5b390c7b2e48fd480/FLAGbe3e90ba2 [2021-11-23 01:19:16,726 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:19:16,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/sv-benchmarks/c/eca-rers2012/Problem15_label04.c [2021-11-23 01:19:16,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/data/1fea612b5/2e6334de24da45a5b390c7b2e48fd480/FLAGbe3e90ba2 [2021-11-23 01:19:16,809 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/data/1fea612b5/2e6334de24da45a5b390c7b2e48fd480 [2021-11-23 01:19:16,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:19:16,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:19:16,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:19:16,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:19:16,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:19:16,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:19:16" (1/1) ... [2021-11-23 01:19:16,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7603255d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:16, skipping insertion in model container [2021-11-23 01:19:16,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:19:16" (1/1) ... [2021-11-23 01:19:16,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:19:16,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:19:17,155 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_b3545d5b-38d7-4b88-8e32-7c92c43af003/sv-benchmarks/c/eca-rers2012/Problem15_label04.c[3915,3928] [2021-11-23 01:19:17,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:19:17,914 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:19:17,970 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_b3545d5b-38d7-4b88-8e32-7c92c43af003/sv-benchmarks/c/eca-rers2012/Problem15_label04.c[3915,3928] [2021-11-23 01:19:18,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:19:18,312 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:19:18,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18 WrapperNode [2021-11-23 01:19:18,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:19:18,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:19:18,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:19:18,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:19:18,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,639 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1758 [2021-11-23 01:19:18,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:19:18,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:19:18,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:19:18,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:19:18,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:18,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:19:18,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:19:18,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:19:18,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:19:18,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:18" (1/1) ... [2021-11-23 01:19:19,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:19:19,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:19:19,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:19:19,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3545d5b-38d7-4b88-8e32-7c92c43af003/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:19:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:19:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:19:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:19:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:19:19,243 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:19:19,245 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:19:23,351 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:19:43,229 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:19:43,229 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:19:43,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:43 BoogieIcfgContainer [2021-11-23 01:19:43,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:19:43,234 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:19:43,234 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:19:43,255 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:19:43,255 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:43" (1/1) ... [2021-11-23 01:19:43,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:19:43,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:19:43,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:19:43,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:19:43,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:43,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:43,656 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 01:19:44,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:44,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:19:44,147 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:19:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:19:44,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:44,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:49,660 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 01:19:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 01:19:51,468 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 01:19:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:19:51,469 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:51,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:19:59,631 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 01:20:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2021-11-23 01:20:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2021-11-23 01:20:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:20:02,217 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:02,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:08,386 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 01:20:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:09,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 46 transitions. [2021-11-23 01:20:09,079 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 46 transitions. [2021-11-23 01:20:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:20:09,080 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:09,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:28,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:20:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:29,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 36 states and 70 transitions. [2021-11-23 01:20:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 70 transitions. [2021-11-23 01:20:29,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:20:29,112 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:29,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:20:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:20:41,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:20:41,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 39 states and 78 transitions. [2021-11-23 01:20:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 78 transitions. [2021-11-23 01:20:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:20:41,590 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:20:41,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:20:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:21:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:21:53,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:21:55,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:21:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 47 states and 97 transitions. [2021-11-23 01:21:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 97 transitions. [2021-11-23 01:21:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:21:55,433 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:21:55,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms