./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/display-bit.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/display-bit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4355664fa2a6158e62d5701b8ccf1bad37ebc90f2ecb4b1919ebd02d94091d20 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:37:02,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:37:02,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:37:02,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:37:02,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:37:02,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:37:02,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:37:02,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:37:02,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:37:02,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:37:02,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:37:02,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:37:02,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:37:02,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:37:02,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:37:02,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:37:02,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:37:02,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:37:02,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:37:02,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:37:02,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:37:02,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:37:02,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:37:02,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:37:02,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:37:02,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:37:02,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:37:02,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:37:02,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:37:02,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:37:02,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:37:02,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:37:02,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:37:02,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:37:02,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:37:02,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:37:02,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:37:02,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:37:02,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:37:02,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:37:02,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:37:02,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:37:02,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:37:02,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:37:02,901 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:37:02,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:37:02,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:37:02,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:37:02,902 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:37:02,903 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:37:02,903 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:37:02,903 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:37:02,904 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:37:02,904 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:37:02,905 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:37:02,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:37:02,905 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:37:02,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:37:02,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:37:02,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:37:02,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:37:02,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:37:02,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:37:02,907 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:37:02,907 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:37:02,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:37:02,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:37:02,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:37:02,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:37:02,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:37:02,910 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:37:02,911 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4355664fa2a6158e62d5701b8ccf1bad37ebc90f2ecb4b1919ebd02d94091d20 [2022-10-17 10:37:03,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:37:03,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:37:03,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:37:03,260 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:37:03,261 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:37:03,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-bwb/display-bit.i [2022-10-17 10:37:03,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/data/00cf01928/a16c20d1d9c14095a0737c1528134f8f/FLAG162b78dd1 [2022-10-17 10:37:03,924 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:37:03,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/sv-benchmarks/c/termination-bwb/display-bit.i [2022-10-17 10:37:03,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/data/00cf01928/a16c20d1d9c14095a0737c1528134f8f/FLAG162b78dd1 [2022-10-17 10:37:04,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/data/00cf01928/a16c20d1d9c14095a0737c1528134f8f [2022-10-17 10:37:04,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:37:04,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:37:04,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:37:04,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:37:04,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:37:04,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e267634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04, skipping insertion in model container [2022-10-17 10:37:04,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:37:04,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:37:04,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:37:04,603 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:37:04,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:37:04,682 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:37:04,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04 WrapperNode [2022-10-17 10:37:04,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:37:04,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:37:04,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:37:04,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:37:04,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,727 INFO L138 Inliner]: procedures = 90, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-10-17 10:37:04,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:37:04,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:37:04,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:37:04,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:37:04,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:37:04,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:37:04,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:37:04,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:37:04,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (1/1) ... [2022-10-17 10:37:04,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:37:04,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:37:04,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:37:04,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a41197-9413-4e31-8c26-deb655d7a469/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:37:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:37:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2022-10-17 10:37:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:37:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:37:05,000 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:37:05,003 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:37:05,352 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:37:05,359 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:37:05,359 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 10:37:05,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:37:05 BoogieIcfgContainer [2022-10-17 10:37:05,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:37:05,363 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:37:05,363 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:37:05,367 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:37:05,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:37:05,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:37:04" (1/3) ... [2022-10-17 10:37:05,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e8ffcf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:37:05, skipping insertion in model container [2022-10-17 10:37:05,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:37:05,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:37:04" (2/3) ... [2022-10-17 10:37:05,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e8ffcf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:37:05, skipping insertion in model container [2022-10-17 10:37:05,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:37:05,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:37:05" (3/3) ... [2022-10-17 10:37:05,371 INFO L332 chiAutomizerObserver]: Analyzing ICFG display-bit.i [2022-10-17 10:37:05,430 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:37:05,430 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:37:05,431 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:37:05,431 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:37:05,431 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:37:05,431 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:37:05,431 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:37:05,431 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:37:05,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:05,454 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2022-10-17 10:37:05,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:37:05,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:37:05,462 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:37:05,462 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:37:05,462 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:37:05,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:37:05,466 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2022-10-17 10:37:05,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:37:05,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:37:05,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-10-17 10:37:05,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:37:05,474 INFO L748 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(8, 1);~number1~0 := 65535;~mask~0 := 1;~x~0 := 0;~c~0 := 1;~y~0 := 0; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;assume { :begin_inline_displayBits } true;displayBits_#in~value#1 := ~mask~0;havoc displayBits_#t~nondet3#1, displayBits_#t~ite4#1, displayBits_#t~ret5#1, displayBits_#t~ret6#1, displayBits_#t~nondet7#1, displayBits_#t~ret8#1, displayBits_~value#1, displayBits_~displayMask~0#1;displayBits_~value#1 := displayBits_#in~value#1;displayBits_~displayMask~0#1 := 2147483648;havoc displayBits_#t~nondet3#1; 19#L285-2true [2022-10-17 10:37:05,475 INFO L750 eck$LassoCheckResult]: Loop: 19#L285-2true assume !!(~c~0 <= 32); 20#L286true assume !(0 != (if 0 == displayBits_~value#1 || 0 == displayBits_~displayMask~0#1 then 0 else (if 1 == displayBits_~displayMask~0#1 then (if 1 == displayBits_~value#1 || 0 == displayBits_~value#1 then displayBits_~value#1 else (if displayBits_~value#1 >= 0 then displayBits_~value#1 % 2 else ~bitwiseAnd(displayBits_~value#1, displayBits_~displayMask~0#1))) else (if 1 == displayBits_~value#1 then (if 1 == displayBits_~displayMask~0#1 || 0 == displayBits_~displayMask~0#1 then displayBits_~displayMask~0#1 else (if displayBits_~displayMask~0#1 >= 0 then displayBits_~displayMask~0#1 % 2 else ~bitwiseAnd(displayBits_~value#1, displayBits_~displayMask~0#1))) else ~bitwiseAnd(displayBits_~value#1, displayBits_~displayMask~0#1)))) % 4294967296);displayBits_#t~ite4#1 := 48; 14#L286-2true call displayBits_#t~ret5#1 := putchar(displayBits_#t~ite4#1);havoc displayBits_#t~ite4#1;havoc displayBits_#t~ret5#1;displayBits_~value#1 := 2 * displayBits_~value#1; 32#L288true assume 0 == (if ~c~0 < 0 && 0 != ~c~0 % 8 then ~c~0 % 8 - 8 else ~c~0 % 8);call displayBits_#t~ret6#1 := putchar(32);havoc displayBits_#t~ret6#1; 18#L288-2true assume 0 == ~mask~0;~mask~0 := 0; 7#L291-7true ~c~0 := ~c~0 + ~mask~0; 19#L285-2true [2022-10-17 10:37:05,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:05,485 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-10-17 10:37:05,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:05,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531277689] [2022-10-17 10:37:05,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:05,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:05,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:05,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:05,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:05,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1217757980, now seen corresponding path program 1 times [2022-10-17 10:37:05,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:05,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371618319] [2022-10-17 10:37:05,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:05,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:05,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:37:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:37:05,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:37:05,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:37:05,757 INFO L85 PathProgramCache]: Analyzing trace with hash 297807198, now seen corresponding path program 1 times [2022-10-17 10:37:05,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:37:05,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950051212] [2022-10-17 10:37:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:37:05,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:37:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:37:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:37:05,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:37:05,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950051212] [2022-10-17 10:37:05,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950051212] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:37:05,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:37:05,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:37:05,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687978682] [2022-10-17 10:37:05,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton