./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-03-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-03-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro --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 cfd67d5631b4948a1522f37c4b686fa068a561ee1d767737058a32ed6cf067a0 --- 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-8393723 [2022-11-18 21:07:37,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:07:37,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:07:37,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:07:37,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:07:37,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:07:37,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:07:37,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:07:37,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:07:37,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:07:37,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:07:37,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:07:37,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:07:37,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:07:37,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:07:37,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:07:37,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:07:37,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:07:37,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:07:37,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:07:37,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:07:37,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:07:37,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:07:37,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:07:37,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:07:37,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:07:37,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:07:37,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:07:37,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:07:37,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:07:37,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:07:37,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:07:37,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:07:37,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:07:37,752 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:07:37,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:07:37,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:07:37,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:07:37,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:07:37,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:07:37,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:07:37,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 21:07:37,779 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:07:37,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:07:37,780 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:07:37,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:07:37,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:07:37,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:07:37,782 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:07:37,782 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 21:07:37,782 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 21:07:37,782 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 21:07:37,782 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 21:07:37,783 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 21:07:37,800 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 21:07:37,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:07:37,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:07:37,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:07:37,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:07:37,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 21:07:37,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 21:07:37,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 21:07:37,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:07:37,803 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 21:07:37,803 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:07:37,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 21:07:37,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:07:37,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:07:37,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:07:37,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:07:37,807 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 21:07:37,809 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_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfd67d5631b4948a1522f37c4b686fa068a561ee1d767737058a32ed6cf067a0 [2022-11-18 21:07:38,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:07:38,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:07:38,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:07:38,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:07:38,116 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:07:38,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-18 21:07:38,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/data/20fd14820/1653515b431248c39ce85731e9b4af89/FLAG0806497c3 [2022-11-18 21:07:38,589 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:07:38,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/sv-benchmarks/c/termination-bwb/and-03-false.c [2022-11-18 21:07:38,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/data/20fd14820/1653515b431248c39ce85731e9b4af89/FLAG0806497c3 [2022-11-18 21:07:38,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/data/20fd14820/1653515b431248c39ce85731e9b4af89 [2022-11-18 21:07:38,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:07:38,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:07:38,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:07:38,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:07:38,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:07:38,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:07:38" (1/1) ... [2022-11-18 21:07:38,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253c565a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:38, skipping insertion in model container [2022-11-18 21:07:38,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:07:38" (1/1) ... [2022-11-18 21:07:38,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:07:39,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:07:39,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:07:39,188 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:07:39,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:07:39,211 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:07:39,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39 WrapperNode [2022-11-18 21:07:39,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:07:39,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:07:39,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:07:39,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:07:39,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,238 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-18 21:07:39,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:07:39,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:07:39,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:07:39,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:07:39,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:07:39,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:07:39,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:07:39,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:07:39,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (1/1) ... [2022-11-18 21:07:39,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 21:07:39,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:07:39,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 21:07:39,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 21:07:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:07:39,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:07:39,396 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:07:39,397 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:07:39,477 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:07:39,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:07:39,483 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:07:39,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:39 BoogieIcfgContainer [2022-11-18 21:07:39,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:07:39,486 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 21:07:39,486 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 21:07:39,490 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 21:07:39,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 21:07:39,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:07:38" (1/3) ... [2022-11-18 21:07:39,492 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b463e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:07:39, skipping insertion in model container [2022-11-18 21:07:39,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 21:07:39,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:07:39" (2/3) ... [2022-11-18 21:07:39,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b463e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:07:39, skipping insertion in model container [2022-11-18 21:07:39,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 21:07:39,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:39" (3/3) ... [2022-11-18 21:07:39,495 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-03-false.c [2022-11-18 21:07:39,548 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 21:07:39,549 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 21:07:39,549 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 21:07:39,549 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 21:07:39,549 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 21:07:39,549 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 21:07:39,549 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 21:07:39,549 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 21:07:39,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-11-18 21:07:39,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 21:07:39,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:07:39,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:07:39,578 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 21:07:39,578 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 21:07:39,579 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 21:07:39,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2022-11-18 21:07:39,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 21:07:39,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:07:39,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:07:39,581 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 21:07:39,581 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 21:07:39,588 INFO L748 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4#L16-1true [2022-11-18 21:07:39,589 INFO L750 eck$LassoCheckResult]: Loop: 4#L16-1true assume !!(0 == main_~x~0#1); 2#L16true assume !(main_~x~0#1 >= 0);main_#t~post1#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 4#L16-1true [2022-11-18 21:07:39,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:39,594 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 21:07:39,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:39,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703229659] [2022-11-18 21:07:39,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:39,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:07:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:07:39,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1329, now seen corresponding path program 1 times [2022-11-18 21:07:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:39,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166453503] [2022-11-18 21:07:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:07:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:07:39,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:07:39,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166453503] [2022-11-18 21:07:39,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166453503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:07:39,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:07:39,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 21:07:39,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419731909] [2022-11-18 21:07:39,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:07:39,757 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 21:07:39,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:07:39,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:07:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:07:39,792 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-18 21:07:39,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:39,818 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-18 21:07:39,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2022-11-18 21:07:39,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 21:07:39,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 7 states and 8 transitions. [2022-11-18 21:07:39,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-18 21:07:39,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-18 21:07:39,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-11-18 21:07:39,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:07:39,827 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-18 21:07:39,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-11-18 21:07:39,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2022-11-18 21:07:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2022-11-18 21:07:39,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2022-11-18 21:07:39,870 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-11-18 21:07:39,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:07:39,880 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2022-11-18 21:07:39,881 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 21:07:39,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2022-11-18 21:07:39,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-18 21:07:39,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 21:07:39,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 21:07:39,907 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 21:07:39,908 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 21:07:39,908 INFO L748 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 39#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 36#L16-1 [2022-11-18 21:07:39,908 INFO L750 eck$LassoCheckResult]: Loop: 36#L16-1 assume !!(0 == main_~x~0#1); 34#L16 assume main_~x~0#1 >= 0; 35#L17 assume 0 == main_~x~0#1 || 0 == main_~x~0#1 - 1;main_~x~0#1 := 0; 36#L16-1 [2022-11-18 21:07:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:39,909 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-18 21:07:39,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:39,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113198987] [2022-11-18 21:07:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:39,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:07:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:07:39,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:39,917 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times [2022-11-18 21:07:39,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:39,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326393403] [2022-11-18 21:07:39,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:39,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:07:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:07:39,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2022-11-18 21:07:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:07:39,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020434710] [2022-11-18 21:07:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:07:39,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:07:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:07:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:39,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:07:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:40,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:07:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:07:40,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:07:40 BoogieIcfgContainer [2022-11-18 21:07:40,057 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 21:07:40,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:07:40,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:07:40,059 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:07:40,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:07:39" (3/4) ... [2022-11-18 21:07:40,066 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 21:07:40,117 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:07:40,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:07:40,119 INFO L158 Benchmark]: Toolchain (without parser) took 1135.63ms. Allocated memory is still 115.3MB. Free memory was 73.1MB in the beginning and 52.3MB in the end (delta: 20.8MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-18 21:07:40,119 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:40,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.29ms. Allocated memory is still 115.3MB. Free memory was 72.9MB in the beginning and 91.2MB in the end (delta: -18.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:07:40,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.72ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 90.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:40,127 INFO L158 Benchmark]: Boogie Preprocessor took 18.58ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 883.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:40,128 INFO L158 Benchmark]: RCFGBuilder took 226.36ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 79.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:07:40,128 INFO L158 Benchmark]: BuchiAutomizer took 571.34ms. Allocated memory is still 115.3MB. Free memory was 79.9MB in the beginning and 53.5MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-18 21:07:40,128 INFO L158 Benchmark]: Witness Printer took 58.88ms. Allocated memory is still 115.3MB. Free memory was 53.5MB in the beginning and 52.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:07:40,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.29ms. Allocated memory is still 115.3MB. Free memory was 72.9MB in the beginning and 91.2MB in the end (delta: -18.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.72ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 90.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.58ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 883.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.36ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 79.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 571.34ms. Allocated memory is still 115.3MB. Free memory was 79.9MB in the beginning and 53.5MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 58.88ms. Allocated memory is still 115.3MB. Free memory was 53.5MB in the beginning and 52.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 14]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L12] int x; [L13] x = __VERIFIER_nondet_int() Loop: [L14] COND TRUE x==0 [L16] COND TRUE x >= 0 [L17] x = x&(x-1) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = __VERIFIER_nondet_int() Loop: [L14] COND TRUE x==0 [L16] COND TRUE x >= 0 [L17] x = x&(x-1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 21:07:40,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32d66c94-a5a5-4f46-a963-ad0508ef4f86/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)