./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label03.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_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/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_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/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_5948f272-a826-44ff-a4d1-a5ba985c328e/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 f98e4f4a763d24bf8ac0e3bba633d7b3746bb8ffa3965bd124d2a627886885a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:34:02,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:34:02,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:34:02,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:34:02,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:34:02,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:34:02,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:34:02,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:34:02,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:34:02,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:34:02,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:34:02,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:34:02,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:34:02,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:34:02,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:34:02,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:34:02,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:34:02,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:34:02,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:34:02,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:34:02,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:34:02,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:34:02,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:34:02,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:34:02,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:34:02,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:34:02,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:34:02,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:34:02,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:34:02,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:34:02,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:34:02,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:34:02,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:34:02,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:34:02,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:34:02,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:34:02,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:34:02,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:34:02,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:34:02,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:34:02,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:34:02,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:34:02,265 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:34:02,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:34:02,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:34:02,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:34:02,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:34:02,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:34:02,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:34:02,271 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:34:02,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:34:02,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:34:02,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:34:02,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:34:02,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:34:02,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:34:02,281 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:34:02,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:34:02,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:34:02,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:34:02,283 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:34:02,283 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:34:02,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:34:02,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:34:02,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:34:02,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:34:02,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:34:02,285 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:34:02,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:34:02,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:34:02,286 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_5948f272-a826-44ff-a4d1-a5ba985c328e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f98e4f4a763d24bf8ac0e3bba633d7b3746bb8ffa3965bd124d2a627886885a7 [2021-11-23 01:34:02,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:34:02,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:34:02,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:34:02,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:34:02,685 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:34:02,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem15_label03.c [2021-11-23 01:34:02,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/data/4a4ed2ee5/661bf23e4d4b4fc6bbba5e316136bdb1/FLAG3df92a932 [2021-11-23 01:34:03,592 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:34:03,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/sv-benchmarks/c/eca-rers2012/Problem15_label03.c [2021-11-23 01:34:03,625 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/data/4a4ed2ee5/661bf23e4d4b4fc6bbba5e316136bdb1/FLAG3df92a932 [2021-11-23 01:34:03,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/data/4a4ed2ee5/661bf23e4d4b4fc6bbba5e316136bdb1 [2021-11-23 01:34:03,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:34:03,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:34:03,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:34:03,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:34:03,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:34:03,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:03" (1/1) ... [2021-11-23 01:34:03,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4444b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:03, skipping insertion in model container [2021-11-23 01:34:03,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:34:03" (1/1) ... [2021-11-23 01:34:03,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:34:03,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:34:04,093 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_5948f272-a826-44ff-a4d1-a5ba985c328e/sv-benchmarks/c/eca-rers2012/Problem15_label03.c[2937,2950] [2021-11-23 01:34:04,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:34:04,803 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:34:04,850 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_5948f272-a826-44ff-a4d1-a5ba985c328e/sv-benchmarks/c/eca-rers2012/Problem15_label03.c[2937,2950] [2021-11-23 01:34:05,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:34:05,208 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:34:05,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05 WrapperNode [2021-11-23 01:34:05,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:34:05,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:34:05,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:34:05,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:34:05,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,473 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1758 [2021-11-23 01:34:05,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:34:05,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:34:05,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:34:05,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:34:05,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:34:05,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:34:05,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:34:05,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:34:05,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:34:05" (1/1) ... [2021-11-23 01:34:05,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:34:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:34:05,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:34:05,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5948f272-a826-44ff-a4d1-a5ba985c328e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:34:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:34:06,056 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:34:06,059 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:34:09,326 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:34:29,129 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:34:29,130 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:34:29,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:29 BoogieIcfgContainer [2021-11-23 01:34:29,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:34:29,135 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:34:29,135 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:34:29,148 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:34:29,149 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:34:29" (1/1) ... [2021-11-23 01:34:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:34:29,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:34:29,297 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:34:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:34:29,301 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:29,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:29,542 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 01:34:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:34:29,899 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:34:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:34:29,899 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:29,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:35,723 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 01:34:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:37,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 01:34:37,561 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 01:34:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:34:37,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:37,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:47,484 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 01:34:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:49,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 25 states and 40 transitions. [2021-11-23 01:34:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. [2021-11-23 01:34:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:34:49,308 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:49,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:34:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:34:56,889 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 01:34:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:34:57,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 28 states and 46 transitions. [2021-11-23 01:34:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 46 transitions. [2021-11-23 01:34:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:34:57,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:34:57,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:10,580 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 01:35:18,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:35:19,316 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 01:35:20,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:20,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 63 transitions. [2021-11-23 01:35:20,847 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2021-11-23 01:35:20,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:35:20,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:20,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:35:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:35:32,680 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 01:35:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:35:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 35 states and 64 transitions. [2021-11-23 01:35:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 64 transitions. [2021-11-23 01:35:32,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:35:32,928 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:35:32,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms