./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/xor-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/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_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/xor-01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/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_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/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 6748276207b055f086b7e803489fe8020fc54faaccf8e7b513ddf6b7ff856d91 --- 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 18:42:47,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:42:47,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:42:47,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:42:47,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:42:47,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:42:47,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:42:47,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:42:47,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:42:47,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:42:47,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:42:47,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:42:47,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:42:47,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:42:47,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:42:47,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:42:47,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:42:47,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:42:47,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:42:47,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:42:47,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:42:47,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:42:47,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:42:47,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:42:47,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:42:47,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:42:47,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:42:47,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:42:47,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:42:47,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:42:47,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:42:47,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:42:47,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:42:47,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:42:47,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:42:47,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:42:47,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:42:47,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:42:47,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:42:47,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:42:47,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:42:47,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 18:42:47,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:42:47,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:42:47,861 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:42:47,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:42:47,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:42:47,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:42:47,862 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:42:47,863 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 18:42:47,863 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 18:42:47,863 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 18:42:47,863 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 18:42:47,863 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 18:42:47,864 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 18:42:47,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:42:47,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:42:47,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:42:47,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:42:47,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 18:42:47,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 18:42:47,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 18:42:47,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:42:47,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 18:42:47,866 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:42:47,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 18:42:47,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:42:47,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:42:47,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:42:47,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:42:47,868 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 18:42:47,868 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_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6748276207b055f086b7e803489fe8020fc54faaccf8e7b513ddf6b7ff856d91 [2022-11-18 18:42:48,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:42:48,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:42:48,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:42:48,217 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:42:48,219 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:42:48,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-bwb/xor-01.c [2022-11-18 18:42:48,291 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/data/9cf7fb228/51576dcf3a97488bb1c3ca59020702e2/FLAGcd5cc9d0c [2022-11-18 18:42:48,723 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:42:48,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/sv-benchmarks/c/termination-bwb/xor-01.c [2022-11-18 18:42:48,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/data/9cf7fb228/51576dcf3a97488bb1c3ca59020702e2/FLAGcd5cc9d0c [2022-11-18 18:42:49,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/data/9cf7fb228/51576dcf3a97488bb1c3ca59020702e2 [2022-11-18 18:42:49,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:42:49,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:42:49,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:49,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:42:49,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:42:49,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d74301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49, skipping insertion in model container [2022-11-18 18:42:49,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:42:49,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:42:49,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:49,325 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:42:49,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:42:49,368 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:42:49,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49 WrapperNode [2022-11-18 18:42:49,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:42:49,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:49,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:42:49,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:42:49,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,401 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-11-18 18:42:49,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:42:49,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:42:49,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:42:49,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:42:49,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,421 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:42:49,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:42:49,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:42:49,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:42:49,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (1/1) ... [2022-11-18 18:42:49,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:49,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:49,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:49,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 18:42:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:42:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:42:49,548 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:42:49,550 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:42:49,628 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:42:49,634 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:42:49,635 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 18:42:49,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:49 BoogieIcfgContainer [2022-11-18 18:42:49,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:42:49,637 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 18:42:49,637 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 18:42:49,641 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 18:42:49,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:42:49,642 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 06:42:49" (1/3) ... [2022-11-18 18:42:49,643 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54519de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:42:49, skipping insertion in model container [2022-11-18 18:42:49,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:42:49,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:42:49" (2/3) ... [2022-11-18 18:42:49,644 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54519de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:42:49, skipping insertion in model container [2022-11-18 18:42:49,644 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:42:49,644 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:49" (3/3) ... [2022-11-18 18:42:49,645 INFO L332 chiAutomizerObserver]: Analyzing ICFG xor-01.c [2022-11-18 18:42:49,707 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 18:42:49,707 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 18:42:49,707 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 18:42:49,708 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 18:42:49,708 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 18:42:49,708 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 18:42:49,708 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 18:42:49,708 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 18:42:49,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 18:42:49,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 18:42:49,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:42:49,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:42:49,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 18:42:49,753 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 18:42:49,753 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 18:42:49,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 18:42:49,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 18:42:49,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:42:49,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:42:49,762 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 18:42:49,763 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 18:42:49,773 INFO L748 eck$LassoCheckResult]: Stem: 5#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~nondet1#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~b~0#1 := 0; 6#L18-2true [2022-11-18 18:42:49,774 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 > 0); 4#L18true assume !(main_~a~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - 1; 6#L18-2true [2022-11-18 18:42:49,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:49,781 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 18:42:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:49,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848515860] [2022-11-18 18:42:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:49,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:49,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:49,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1335, now seen corresponding path program 1 times [2022-11-18 18:42:49,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:49,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769742562] [2022-11-18 18:42:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:49,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:49,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:49,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:49,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:49,964 INFO L85 PathProgramCache]: Analyzing trace with hash 925817, now seen corresponding path program 1 times [2022-11-18 18:42:49,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:49,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623103125] [2022-11-18 18:42:49,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:49,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:49,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:50,084 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:42:50,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:42:50,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:42:50,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:42:50,086 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:42:50,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:42:50,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:42:50,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: xor-01.c_Iteration1_Loop [2022-11-18 18:42:50,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:42:50,087 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:42:50,127 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:50,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:50,179 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:42:50,180 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:42:50,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:50,185 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:50,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:42:50,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:42:50,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 18:42:50,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:42:50,254 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=-1} Honda state: {ULTIMATE.start_main_~a~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:42:50,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:50,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:50,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:50,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:42:50,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:42:50,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 18:42:50,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:50,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:50,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:50,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:42:50,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:42:50,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 18:42:50,383 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:42:50,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:50,393 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:42:50,393 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:42:50,393 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:42:50,394 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:42:50,394 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:42:50,394 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,394 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:42:50,394 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:42:50,394 INFO L133 ssoRankerPreferences]: Filename of dumped script: xor-01.c_Iteration1_Loop [2022-11-18 18:42:50,394 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:42:50,395 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:42:50,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:50,402 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:50,448 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:42:50,453 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:42:50,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:50,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:50,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 18:42:50,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:42:50,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:42:50,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:42:50,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:42:50,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:42:50,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:42:50,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:42:50,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 18:42:50,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 18:42:50,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:50,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:50,518 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:50,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 18:42:50,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:42:50,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:42:50,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:42:50,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:42:50,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:42:50,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:42:50,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:42:50,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 18:42:50,552 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:42:50,559 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 18:42:50,559 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 18:42:50,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:50,565 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:50,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:42:50,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:42:50,592 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:42:50,592 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-18 18:42:50,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 18:42:50,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-18 18:42:50,603 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:42:50,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:50,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:42:50,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:50,663 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:42:50,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:50,701 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 18:42:50,749 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 18:42:50,751 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 18:42:50,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 38 states and 55 transitions. Complement of second has 8 states. [2022-11-18 18:42:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 18:42:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 18:42:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-11-18 18:42:50,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-18 18:42:50,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:50,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 18:42:50,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:50,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-18 18:42:50,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:50,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2022-11-18 18:42:50,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 18:42:50,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 14 states and 20 transitions. [2022-11-18 18:42:50,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 18:42:50,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 18:42:50,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2022-11-18 18:42:50,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 18:42:50,815 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2022-11-18 18:42:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2022-11-18 18:42:50,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-11-18 18:42:50,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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 18:42:50,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2022-11-18 18:42:50,844 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2022-11-18 18:42:50,845 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2022-11-18 18:42:50,845 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 18:42:50,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2022-11-18 18:42:50,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 18:42:50,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:42:50,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:42:50,850 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 18:42:50,850 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 18:42:50,850 INFO L748 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~b~0#1 := 0; 100#L18-2 assume !!(main_~x~0#1 > 0); 89#L18 assume main_~a~0#1 >= 0; 90#L20 main_~a~0#1 := 1; 98#L20-6 [2022-11-18 18:42:50,850 INFO L750 eck$LassoCheckResult]: Loop: 98#L20-6 main_~x~0#1 := main_~x~0#1 - main_~a~0#1; 95#L18-2 assume !!(main_~x~0#1 > 0); 96#L18 assume main_~a~0#1 >= 0; 101#L20 main_~a~0#1 := 1; 98#L20-6 [2022-11-18 18:42:50,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:50,852 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2022-11-18 18:42:50,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:50,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962974507] [2022-11-18 18:42:50,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:50,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:50,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:50,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:50,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1858064, now seen corresponding path program 1 times [2022-11-18 18:42:50,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:50,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063476763] [2022-11-18 18:42:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:50,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:50,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:50,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:50,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:50,900 INFO L85 PathProgramCache]: Analyzing trace with hash 584188282, now seen corresponding path program 1 times [2022-11-18 18:42:50,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:50,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554655377] [2022-11-18 18:42:50,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:50,919 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:50,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:50,975 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:42:50,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:42:50,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:42:50,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:42:50,975 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:42:50,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:50,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:42:50,976 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:42:50,976 INFO L133 ssoRankerPreferences]: Filename of dumped script: xor-01.c_Iteration2_Loop [2022-11-18 18:42:50,976 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:42:50,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:42:50,979 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:51,032 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:42:51,033 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:42:51,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,034 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 18:42:51,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:42:51,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:42:51,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:51,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,091 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 18:42:51,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:42:51,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:42:51,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-18 18:42:51,210 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:42:51,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:51,213 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:42:51,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:42:51,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:42:51,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:42:51,214 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:42:51,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:42:51,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:42:51,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: xor-01.c_Iteration2_Loop [2022-11-18 18:42:51,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:42:51,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:42:51,215 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:51,289 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:42:51,289 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:42:51,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,291 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 18:42:51,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 18:42:51,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:42:51,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:42:51,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:42:51,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:42:51,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:42:51,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:42:51,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:42:51,327 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:42:51,331 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 18:42:51,331 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 18:42:51,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,332 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 18:42:51,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:42:51,335 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:42:51,335 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:42:51,336 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2022-11-18 18:42:51,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:51,341 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:42:51,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:51,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:42:51,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:51,425 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:42:51,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:51,512 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 18:42:51,512 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-18 18:42:51,513 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 18:42:51,568 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 22 states and 32 transitions. Complement of second has 9 states. [2022-11-18 18:42:51,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-18 18:42:51,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 18:42:51,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2022-11-18 18:42:51,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-18 18:42:51,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:51,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-18 18:42:51,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:51,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-18 18:42:51,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:51,572 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 32 transitions. [2022-11-18 18:42:51,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:42:51,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 20 transitions. [2022-11-18 18:42:51,577 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 18:42:51,577 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-18 18:42:51,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2022-11-18 18:42:51,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 18:42:51,578 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2022-11-18 18:42:51,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2022-11-18 18:42:51,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-11-18 18:42:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 13 states have internal predecessors, (19), 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 18:42:51,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2022-11-18 18:42:51,580 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-11-18 18:42:51,581 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2022-11-18 18:42:51,581 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 18:42:51,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2022-11-18 18:42:51,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:42:51,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:42:51,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:42:51,582 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:42:51,582 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 18:42:51,583 INFO L748 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 184#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~b~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~x~0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~b~0#1 := 0; 186#L18-2 assume !!(main_~x~0#1 > 0); 185#L18 assume main_~a~0#1 >= 0; 187#L20 main_~a~0#1 := 1; 188#L20-6 main_~x~0#1 := main_~x~0#1 - main_~a~0#1; 180#L18-2 [2022-11-18 18:42:51,583 INFO L750 eck$LassoCheckResult]: Loop: 180#L18-2 assume !!(main_~x~0#1 > 0); 179#L18 assume !(main_~a~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - 1; 180#L18-2 [2022-11-18 18:42:51,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:51,583 INFO L85 PathProgramCache]: Analyzing trace with hash 889692436, now seen corresponding path program 2 times [2022-11-18 18:42:51,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:51,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401842193] [2022-11-18 18:42:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:51,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:51,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:51,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:51,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:51,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1335, now seen corresponding path program 2 times [2022-11-18 18:42:51,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:51,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291179107] [2022-11-18 18:42:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:51,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:51,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:42:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:42:51,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:42:51,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:51,601 INFO L85 PathProgramCache]: Analyzing trace with hash 295939466, now seen corresponding path program 1 times [2022-11-18 18:42:51,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:51,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882282830] [2022-11-18 18:42:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:51,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:42:51,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:51,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882282830] [2022-11-18 18:42:51,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882282830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:51,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:51,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:42:51,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998840354] [2022-11-18 18:42:51,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:51,673 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:42:51,673 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:42:51,674 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:42:51,674 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:42:51,674 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:42:51,674 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,674 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:42:51,674 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:42:51,674 INFO L133 ssoRankerPreferences]: Filename of dumped script: xor-01.c_Iteration3_Loop [2022-11-18 18:42:51,674 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:42:51,674 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:42:51,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:51,681 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:51,702 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:42:51,703 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:42:51,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,704 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:42:51,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:42:51,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 18:42:51,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:51,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,755 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:42:51,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:42:51,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 18:42:51,815 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 18:42:51,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:51,822 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:42:51,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:42:51,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:42:51,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:42:51,822 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 18:42:51,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:42:51,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:42:51,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: xor-01.c_Iteration3_Loop [2022-11-18 18:42:51,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:42:51,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:42:51,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:51,838 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:42:51,863 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:42:51,864 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 18:42:51,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,865 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 18:42:51,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 18:42:51,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 18:42:51,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 18:42:51,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 18:42:51,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 18:42:51,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 18:42:51,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 18:42:51,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 18:42:51,897 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 18:42:51,902 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 18:42:51,902 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-18 18:42:51,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:42:51,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:42:51,906 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:42:51,912 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 18:42:51,912 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 18:42:51,912 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 18:42:51,913 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-18 18:42:51,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 18:42:51,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:51,922 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 18:42:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:51,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 18:42:51,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:51,967 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 18:42:51,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:42:51,997 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 18:42:51,999 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 18:42:51,999 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 18:42:52,026 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 19 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Result 25 states and 33 transitions. Complement of second has 5 states. [2022-11-18 18:42:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 18:42:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 18:42:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-11-18 18:42:52,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-18 18:42:52,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:52,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2022-11-18 18:42:52,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:52,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-18 18:42:52,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 18:42:52,032 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2022-11-18 18:42:52,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 18:42:52,034 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 19 states and 25 transitions. [2022-11-18 18:42:52,034 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-11-18 18:42:52,034 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-18 18:42:52,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2022-11-18 18:42:52,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 18:42:52,035 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-18 18:42:52,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2022-11-18 18:42:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-11-18 18:42:52,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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 18:42:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2022-11-18 18:42:52,037 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-11-18 18:42:52,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:52,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:42:52,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:42:52,041 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 18:42:52,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:42:52,058 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-11-18 18:42:52,059 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2022-11-18 18:42:52,060 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 18:42:52,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2022-11-18 18:42:52,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 18:42:52,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 18:42:52,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 18:42:52,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:42:52,075 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:42:52,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:42:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:42:52,084 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:42:52,084 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 18:42:52,084 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:42:52,085 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 18:42:52,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 18:42:52,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:52,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 06:42:52 BoogieIcfgContainer [2022-11-18 18:42:52,097 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 18:42:52,098 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:42:52,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:42:52,100 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:42:52,101 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:42:49" (3/4) ... [2022-11-18 18:42:52,106 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:42:52,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:42:52,107 INFO L158 Benchmark]: Toolchain (without parser) took 2999.36ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 51.6MB in the beginning and 106.2MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:42:52,108 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:42:52,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 18:42:52,118 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.03ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 51.4MB in the beginning and 86.5MB in the end (delta: -35.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-18 18:42:52,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.65ms. Allocated memory is still 109.1MB. Free memory was 86.5MB in the beginning and 85.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:42:52,118 INFO L158 Benchmark]: Boogie Preprocessor took 20.88ms. Allocated memory is still 109.1MB. Free memory was 84.9MB in the beginning and 84.1MB in the end (delta: 743.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:42:52,119 INFO L158 Benchmark]: RCFGBuilder took 212.96ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 75.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:42:52,119 INFO L158 Benchmark]: BuchiAutomizer took 2460.12ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 75.5MB in the beginning and 106.9MB in the end (delta: -31.5MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-11-18 18:42:52,120 INFO L158 Benchmark]: Witness Printer took 8.09ms. Allocated memory is still 132.1MB. Free memory was 106.9MB in the beginning and 106.2MB in the end (delta: 721.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:42:52,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 88.1MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.03ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 51.4MB in the beginning and 86.5MB in the end (delta: -35.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.65ms. Allocated memory is still 109.1MB. Free memory was 86.5MB in the beginning and 85.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.88ms. Allocated memory is still 109.1MB. Free memory was 84.9MB in the beginning and 84.1MB in the end (delta: 743.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 212.96ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 75.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2460.12ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 75.5MB in the beginning and 106.9MB in the end (delta: -31.5MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Witness Printer took 8.09ms. Allocated memory is still 132.1MB. Free memory was 106.9MB in the beginning and 106.2MB in the end (delta: 721.9kB). 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x + -1 * a and consists of 6 locations. One deterministic module has affine ranking function x and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 32 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp80 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 18:42:52,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd8b6d51-746b-4c28-a1e1-0bd5239c32a2/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 Result: TRUE