./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_2.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_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/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_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/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_d58b18ae-e477-4597-93ee-48d8541d8719/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 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:27:52,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:27:52,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:27:52,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:27:52,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:27:52,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:27:52,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:27:52,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:27:52,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:27:52,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:27:52,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:27:52,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:27:52,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:27:52,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:27:52,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:27:52,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:27:52,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:27:52,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:27:52,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:27:52,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:27:52,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:27:52,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:27:52,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:27:52,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:27:52,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:27:52,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:27:52,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:27:52,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:27:52,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:27:52,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:27:52,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:27:52,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:27:52,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:27:52,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:27:52,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:27:52,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:27:52,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:27:52,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:27:52,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:27:52,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:27:52,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:27:52,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:27:52,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:27:52,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:27:52,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:27:52,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:27:52,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:27:52,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:27:52,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:27:52,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:27:52,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:27:52,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:27:52,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:27:52,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:27:52,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:27:52,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:27:52,895 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:27:52,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:27:52,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:27:52,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:27:52,897 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:27:52,897 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:27:52,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:27:52,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:27:52,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:27:52,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:27:52,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:27:52,900 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:27:52,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:27:52,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:27:52,901 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_d58b18ae-e477-4597-93ee-48d8541d8719/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7da096d64cf3390a2bb7c442378ab6f697dfdf0fd9d4078975ad6171409858bb [2021-11-23 01:27:53,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:27:53,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:27:53,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:27:53,217 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:27:53,219 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:27:53,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/bitvector/gcd_2.c [2021-11-23 01:27:53,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/data/4fb539ce1/f3d9f13bd4b54d27b8477aa49eca5e2b/FLAGe04552574 [2021-11-23 01:27:53,798 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:27:53,801 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/sv-benchmarks/c/bitvector/gcd_2.c [2021-11-23 01:27:53,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/data/4fb539ce1/f3d9f13bd4b54d27b8477aa49eca5e2b/FLAGe04552574 [2021-11-23 01:27:54,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/data/4fb539ce1/f3d9f13bd4b54d27b8477aa49eca5e2b [2021-11-23 01:27:54,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:27:54,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:27:54,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:27:54,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:27:54,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:27:54,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ec5304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54, skipping insertion in model container [2021-11-23 01:27:54,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:27:54,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:27:54,361 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_d58b18ae-e477-4597-93ee-48d8541d8719/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2021-11-23 01:27:54,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:27:54,390 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:27:54,402 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_d58b18ae-e477-4597-93ee-48d8541d8719/sv-benchmarks/c/bitvector/gcd_2.c[664,677] [2021-11-23 01:27:54,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:27:54,435 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:27:54,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54 WrapperNode [2021-11-23 01:27:54,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:27:54,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:27:54,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:27:54,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:27:54,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,486 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2021-11-23 01:27:54,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:27:54,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:27:54,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:27:54,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:27:54,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:27:54,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:27:54,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:27:54,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:27:54,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:27:54,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:27:54,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:27:54,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58b18ae-e477-4597-93ee-48d8541d8719/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:27:54,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:27:54,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:27:54,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:27:54,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:27:54,702 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:27:54,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:27:54,822 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:27:54,860 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:27:54,860 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:27:54,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:27:54 BoogieIcfgContainer [2021-11-23 01:27:54,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:27:54,864 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:27:54,865 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:27:54,875 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:27:54,876 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:27:54" (1/1) ... [2021-11-23 01:27:54,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:27:54,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:54,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:27:54,942 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:27:54,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:27:54,945 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:54,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:55,187 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 01:27:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:55,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2021-11-23 01:27:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-23 01:27:55,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:27:55,283 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:55,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:55,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:27:55,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:27:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:27:56,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:27:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2021-11-23 01:27:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2021-11-23 01:27:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:27:56,451 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:27:56,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:27:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:27:56,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 01:27:56,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:28:19,979 WARN L227 SmtUtils]: Spent 21.03s on a formula simplification. DAG size of input: 83 DAG size of output: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:28:34,087 WARN L227 SmtUtils]: Spent 11.29s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:28:47,513 WARN L227 SmtUtils]: Spent 10.76s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:28:47,665 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 01:29:09,721 WARN L227 SmtUtils]: Spent 21.68s on a formula simplification. DAG size of input: 91 DAG size of output: 90 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:29:21,154 WARN L227 SmtUtils]: Spent 10.49s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:30:04,438 WARN L227 SmtUtils]: Spent 43.17s on a formula simplification. DAG size of input: 92 DAG size of output: 83 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:30:16,390 WARN L227 SmtUtils]: Spent 10.89s on a formula simplification that was a NOOP. DAG size: 91 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:30:30,325 WARN L227 SmtUtils]: Spent 10.99s on a formula simplification that was a NOOP. DAG size: 84 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:30:41,387 WARN L227 SmtUtils]: Spent 10.30s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:31:02,471 WARN L227 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:31:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:31:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 16 states and 28 transitions. [2021-11-23 01:31:02,476 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 28 transitions. [2021-11-23 01:31:02,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:31:02,477 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:31:02,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:31:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:31:02,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 01:31:02,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:34:15,068 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 01:34:29,029 WARN L227 SmtUtils]: Spent 11.13s on a formula simplification. DAG size of input: 156 DAG size of output: 96 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:35:15,471 WARN L227 SmtUtils]: Spent 32.37s on a formula simplification. DAG size of input: 158 DAG size of output: 103 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:36:00,928 WARN L227 SmtUtils]: Spent 14.06s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:36:36,317 WARN L227 SmtUtils]: Spent 10.13s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 01:36:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:36:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 18 states and 45 transitions. [2021-11-23 01:36:36,320 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 45 transitions. [2021-11-23 01:36:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:36:36,320 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:36:36,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:36:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:36:36,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 01:36:36,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:41:44,041 WARN L227 SmtUtils]: Spent 26.70s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)