./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f 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_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8 --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 a10720b7613c5e2eb453af920488d48ff40b71a0acd05114bf4a692390bb0e0c --- 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-e04fb08 [2022-11-16 11:53:56,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:53:56,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:53:56,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:53:56,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:53:56,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:53:56,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:53:56,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:53:56,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:53:56,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:53:56,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:53:56,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:53:56,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:53:56,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:53:56,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:53:56,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:53:56,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:53:56,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:53:56,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:53:56,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:53:56,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:53:56,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:53:56,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:53:56,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:53:56,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:53:56,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:53:56,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:53:56,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:53:56,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:53:56,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:53:56,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:53:56,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:53:56,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:53:56,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:53:56,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:53:56,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:53:56,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:53:56,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:53:56,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:53:56,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:53:56,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:53:56,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:53:56,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:53:56,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:53:56,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:53:56,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:53:56,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:53:56,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:53:56,417 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:53:56,417 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:53:56,417 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:53:56,417 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:53:56,418 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:53:56,418 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:53:56,418 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:53:56,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:53:56,419 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:53:56,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:53:56,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:53:56,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:53:56,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:53:56,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:53:56,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:53:56,420 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:53:56,420 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:53:56,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:53:56,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:53:56,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:53:56,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:53:56,421 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:53:56,422 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:53:56,423 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_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a10720b7613c5e2eb453af920488d48ff40b71a0acd05114bf4a692390bb0e0c [2022-11-16 11:53:56,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:53:56,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:53:56,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:53:56,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:53:56,755 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:53:56,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-restricted-15/NO_02.c [2022-11-16 11:53:56,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/data/7ec210a48/58da3c50eba14ae3a833a2926869df2d/FLAG2d51916b3 [2022-11-16 11:53:57,350 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:53:57,351 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/sv-benchmarks/c/termination-restricted-15/NO_02.c [2022-11-16 11:53:57,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/data/7ec210a48/58da3c50eba14ae3a833a2926869df2d/FLAG2d51916b3 [2022-11-16 11:53:57,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/data/7ec210a48/58da3c50eba14ae3a833a2926869df2d [2022-11-16 11:53:57,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:53:57,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:53:57,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:53:57,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:53:57,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:53:57,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:53:57" (1/1) ... [2022-11-16 11:53:57,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49302e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:57, skipping insertion in model container [2022-11-16 11:53:57,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:53:57" (1/1) ... [2022-11-16 11:53:57,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:53:57,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:53:58,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:53:58,054 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:53:58,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:53:58,073 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:53:58,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58 WrapperNode [2022-11-16 11:53:58,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:53:58,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:53:58,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:53:58,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:53:58,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,101 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-16 11:53:58,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:53:58,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:53:58,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:53:58,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:53:58,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:53:58,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:53:58,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:53:58,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:53:58,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (1/1) ... [2022-11-16 11:53:58,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:53:58,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:53:58,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:53:58,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:53:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:53:58,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:53:58,271 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:53:58,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:53:58,362 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:53:58,367 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:53:58,367 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 11:53:58,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:53:58 BoogieIcfgContainer [2022-11-16 11:53:58,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:53:58,370 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:53:58,370 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:53:58,379 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:53:58,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:53:58,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:53:57" (1/3) ... [2022-11-16 11:53:58,381 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@422a1654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:53:58, skipping insertion in model container [2022-11-16 11:53:58,381 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:53:58,382 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:53:58" (2/3) ... [2022-11-16 11:53:58,382 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@422a1654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:53:58, skipping insertion in model container [2022-11-16 11:53:58,382 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:53:58,382 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:53:58" (3/3) ... [2022-11-16 11:53:58,383 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_02.c [2022-11-16 11:53:58,453 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:53:58,453 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:53:58,453 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:53:58,454 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:53:58,454 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:53:58,454 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:53:58,454 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:53:58,454 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:53:58,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-11-16 11:53:58,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:53:58,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:53:58,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:53:58,490 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:53:58,490 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:53:58,490 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:53:58,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-11-16 11:53:58,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:53:58,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:53:58,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:53:58,492 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:53:58,492 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:53:58,500 INFO L748 eck$LassoCheckResult]: Stem: 6#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_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 4#L10-2true [2022-11-16 11:53:58,500 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 2#L12-2true assume !(main_~j~0#1 < 1); 7#L12-3true main_~i~0#1 := 1 + main_~i~0#1; 4#L10-2true [2022-11-16 11:53:58,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:53:58,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:58,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688543850] [2022-11-16 11:53:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:58,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:53:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:53:58,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:58,644 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-11-16 11:53:58,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:58,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698936285] [2022-11-16 11:53:58,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:58,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:53:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:53:58,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:53:58,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698936285] [2022-11-16 11:53:58,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698936285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:53:58,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:53:58,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:53:58,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326114070] [2022-11-16 11:53:58,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:53:58,766 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-16 11:53:58,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:53:58,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:53:58,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:53:58,814 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:53:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:53:58,830 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2022-11-16 11:53:58,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 8 transitions. [2022-11-16 11:53:58,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:53:58,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 4 transitions. [2022-11-16 11:53:58,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-16 11:53:58,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-11-16 11:53:58,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 4 transitions. [2022-11-16 11:53:58,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:53:58,839 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-11-16 11:53:58,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 4 transitions. [2022-11-16 11:53:58,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2022-11-16 11:53:58,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) 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) [2022-11-16 11:53:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2022-11-16 11:53:58,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-11-16 11:53:58,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:53:58,870 INFO L428 stractBuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2022-11-16 11:53:58,871 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:53:58,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 4 transitions. [2022-11-16 11:53:58,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:53:58,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:53:58,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:53:58,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 11:53:58,873 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:53:58,873 INFO L748 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 29#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0; 27#L10-2 assume !!(main_~i~0#1 < 100);main_~j~0#1 := 0; 26#L12-2 [2022-11-16 11:53:58,874 INFO L750 eck$LassoCheckResult]: Loop: 26#L12-2 assume !!(main_~j~0#1 < 1);main_~j~0#1 := main_~j~0#1; 26#L12-2 [2022-11-16 11:53:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:58,875 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-16 11:53:58,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:58,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655225459] [2022-11-16 11:53:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:58,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:53:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,898 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:53:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:58,899 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-11-16 11:53:58,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:58,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708995443] [2022-11-16 11:53:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:58,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:53:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:53:58,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:53:58,924 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-11-16 11:53:58,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:53:58,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696018662] [2022-11-16 11:53:58,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:53:58,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:53:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:53:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:58,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:53:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:59,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:53:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:53:59,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:53:59 BoogieIcfgContainer [2022-11-16 11:53:59,030 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:53:59,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:53:59,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:53:59,030 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:53:59,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:53:58" (3/4) ... [2022-11-16 11:53:59,033 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 11:53:59,091 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:53:59,091 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:53:59,092 INFO L158 Benchmark]: Toolchain (without parser) took 1245.72ms. Allocated memory is still 140.5MB. Free memory was 109.1MB in the beginning and 78.1MB in the end (delta: 31.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-16 11:53:59,093 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:53:59,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.25ms. Allocated memory is still 140.5MB. Free memory was 108.6MB in the beginning and 117.9MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:53:59,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.88ms. Allocated memory is still 140.5MB. Free memory was 117.9MB in the beginning and 116.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:53:59,111 INFO L158 Benchmark]: Boogie Preprocessor took 14.76ms. Allocated memory is still 140.5MB. Free memory was 116.8MB in the beginning and 115.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:53:59,112 INFO L158 Benchmark]: RCFGBuilder took 251.72ms. Allocated memory is still 140.5MB. Free memory was 115.8MB in the beginning and 107.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:53:59,112 INFO L158 Benchmark]: BuchiAutomizer took 659.61ms. Allocated memory is still 140.5MB. Free memory was 107.0MB in the beginning and 79.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:53:59,113 INFO L158 Benchmark]: Witness Printer took 61.31ms. Allocated memory is still 140.5MB. Free memory was 79.7MB in the beginning and 78.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:53:59,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.25ms. Allocated memory is still 140.5MB. Free memory was 108.6MB in the beginning and 117.9MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.88ms. Allocated memory is still 140.5MB. Free memory was 117.9MB in the beginning and 116.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.76ms. Allocated memory is still 140.5MB. Free memory was 116.8MB in the beginning and 115.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 251.72ms. Allocated memory is still 140.5MB. Free memory was 115.8MB in the beginning and 107.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 659.61ms. Allocated memory is still 140.5MB. Free memory was 107.0MB in the beginning and 79.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 61.31ms. Allocated memory is still 140.5MB. Free memory was 79.7MB in the beginning and 78.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] i = 0 VAL [i=0] [L10] COND TRUE i < 100 [L11] j = 0 VAL [i=0, j=0] Loop: [L12] COND TRUE j < 1 [L13] j = j+0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 VAL [i=0] [L10] COND TRUE i < 100 [L11] j = 0 VAL [i=0, j=0] Loop: [L12] COND TRUE j < 1 [L13] j = j+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:53:59,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b98dfb38-683d-471b-9904-1215e37e4432/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)