./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.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_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/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_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/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_d28571a2-efc1-4377-831b-0afb59206202/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 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 --- 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 11:49:38,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:49:38,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:49:38,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:49:38,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:49:38,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:49:38,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:49:38,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:49:38,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:49:38,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:49:38,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:49:38,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:49:38,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:49:38,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:49:38,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:49:38,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:49:38,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:49:38,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:49:38,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:49:38,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:49:38,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:49:38,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:49:38,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:49:38,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:49:38,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:49:38,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:49:38,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:49:38,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:49:38,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:49:38,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:49:38,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:49:38,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:49:38,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:49:38,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:49:38,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:49:38,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:49:38,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:49:38,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:49:38,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:49:38,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:49:38,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:49:38,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:49:38,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:49:38,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:49:38,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:49:38,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:49:38,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:49:38,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:49:38,651 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:49:38,651 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:49:38,651 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:49:38,652 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:49:38,652 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:49:38,652 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:49:38,652 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:49:38,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:49:38,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:49:38,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:49:38,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:49:38,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:49:38,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:49:38,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:49:38,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:49:38,655 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:49:38,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:49:38,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:49:38,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:49:38,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:49:38,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:49:38,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:49:38,657 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:49:38,658 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_d28571a2-efc1-4377-831b-0afb59206202/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 [2022-11-16 11:49:38,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:49:38,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:49:38,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:49:38,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:49:38,949 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:49:38,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2022-11-16 11:49:39,054 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/data/668607447/0cccb70f81144432b0d2bc950282f9f2/FLAGd231991ca [2022-11-16 11:49:39,586 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:49:39,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2022-11-16 11:49:39,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/data/668607447/0cccb70f81144432b0d2bc950282f9f2/FLAGd231991ca [2022-11-16 11:49:39,963 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/data/668607447/0cccb70f81144432b0d2bc950282f9f2 [2022-11-16 11:49:39,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:49:39,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:49:39,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:49:39,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:49:39,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:49:39,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:39" (1/1) ... [2022-11-16 11:49:39,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd00a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:39, skipping insertion in model container [2022-11-16 11:49:39,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:39" (1/1) ... [2022-11-16 11:49:39,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:49:40,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:49:40,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:49:40,241 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:49:40,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:49:40,268 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:49:40,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40 WrapperNode [2022-11-16 11:49:40,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:49:40,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:49:40,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:49:40,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:49:40,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,296 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-11-16 11:49:40,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:49:40,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:49:40,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:49:40,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:49:40,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,313 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:49:40,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:49:40,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:49:40,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:49:40,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (1/1) ... [2022-11-16 11:49:40,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:40,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:40,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:49:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:49:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:49:40,455 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:49:40,458 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:49:40,567 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:49:40,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:49:40,575 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:49:40,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:40 BoogieIcfgContainer [2022-11-16 11:49:40,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:49:40,580 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:49:40,580 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:49:40,585 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:49:40,586 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:49:40,586 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:49:39" (1/3) ... [2022-11-16 11:49:40,587 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5eff2260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:49:40, skipping insertion in model container [2022-11-16 11:49:40,587 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:49:40,588 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:40" (2/3) ... [2022-11-16 11:49:40,588 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5eff2260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:49:40, skipping insertion in model container [2022-11-16 11:49:40,588 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:49:40,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:40" (3/3) ... [2022-11-16 11:49:40,590 INFO L332 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2022-11-16 11:49:40,657 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:49:40,657 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:49:40,657 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:49:40,657 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:49:40,658 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:49:40,658 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:49:40,658 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:49:40,658 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:49:40,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 11:49:40,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 11:49:40,689 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:49:40,689 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:49:40,696 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:49:40,696 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:49:40,696 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:49:40,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 11:49:40,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 11:49:40,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:49:40,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:49:40,699 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:49:40,699 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:49:40,706 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := 0;main_~y~0#1 := 100;main_~z~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L15-2true [2022-11-16 11:49:40,707 INFO L750 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~x~0#1 < 40); 5#L15true assume !(0 == main_~z~0#1);main_~x~0#1 := 2 + main_~x~0#1; 7#L15-2true [2022-11-16 11:49:40,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:40,713 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:49:40,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:40,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087583419] [2022-11-16 11:49:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:40,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:40,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:49:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:40,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:49:40,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-16 11:49:40,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:40,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911883998] [2022-11-16 11:49:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:40,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:40,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:49:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:40,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:49:40,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:40,889 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-16 11:49:40,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:40,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324292069] [2022-11-16 11:49:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:40,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:40,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:49:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:40,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:49:41,032 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:49:41,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:49:41,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:49:41,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:49:41,033 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:49:41,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:41,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:49:41,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:49:41,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c_Iteration1_Loop [2022-11-16 11:49:41,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:49:41,034 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:49:41,050 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:49:41,065 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:49:41,106 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:49:41,107 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:49:41,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:41,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:41,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:41,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:49:41,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:49:41,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:49:41,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:41,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:41,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:41,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:41,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:49:41,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:49:41,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:49:41,276 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:49:41,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:41,285 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:49:41,285 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:49:41,285 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:49:41,285 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:49:41,286 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:49:41,286 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:41,286 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:49:41,286 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:49:41,286 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c_Iteration1_Loop [2022-11-16 11:49:41,286 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:49:41,286 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:49:41,287 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:49:41,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:49:41,342 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:49:41,347 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:49:41,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:41,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:41,353 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:41,355 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 [2022-11-16 11:49:41,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:49:41,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:49:41,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:49:41,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:49:41,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:49:41,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:49:41,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:49:41,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:49:41,387 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:49:41,393 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:49:41,393 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:49:41,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:41,399 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:41,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:49:41,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:49:41,403 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:49:41,404 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:49:41,405 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 40 Supporting invariants [] [2022-11-16 11:49:41,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-16 11:49:41,417 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:49:41,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:41,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:49:41,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:49:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:41,495 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:49:41,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:49:41,526 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 11:49:41,570 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 [2022-11-16 11:49:41,572 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-16 11:49:41,633 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 18 states and 23 transitions. Complement of second has 7 states. [2022-11-16 11:49:41,636 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 [2022-11-16 11:49:41,643 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) [2022-11-16 11:49:41,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-16 11:49:41,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-16 11:49:41,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:49:41,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-16 11:49:41,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:49:41,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-16 11:49:41,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:49:41,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2022-11-16 11:49:41,650 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:49:41,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2022-11-16 11:49:41,654 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:49:41,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:49:41,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:49:41,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:41,655 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:49:41,656 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:49:41,656 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:49:41,656 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:49:41,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:49:41,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:49:41,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:49:41,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:49:41 BoogieIcfgContainer [2022-11-16 11:49:41,666 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:49:41,667 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:49:41,667 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:49:41,668 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:49:41,668 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:40" (3/4) ... [2022-11-16 11:49:41,671 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:49:41,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:49:41,672 INFO L158 Benchmark]: Toolchain (without parser) took 1701.03ms. Allocated memory is still 113.2MB. Free memory was 77.9MB in the beginning and 74.4MB in the end (delta: 3.5MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-11-16 11:49:41,674 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 56.9MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:49:41,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.31ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 89.7MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:49:41,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.62ms. Allocated memory is still 113.2MB. Free memory was 89.7MB in the beginning and 88.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:49:41,679 INFO L158 Benchmark]: Boogie Preprocessor took 16.84ms. Allocated memory is still 113.2MB. Free memory was 88.6MB in the beginning and 87.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:49:41,684 INFO L158 Benchmark]: RCFGBuilder took 263.08ms. Allocated memory is still 113.2MB. Free memory was 87.6MB in the beginning and 79.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:49:41,685 INFO L158 Benchmark]: BuchiAutomizer took 1086.84ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 74.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-11-16 11:49:41,686 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 113.2MB. Free memory was 74.9MB in the beginning and 74.4MB in the end (delta: 512.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:49:41,695 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 83.9MB. Free memory was 56.9MB in the beginning and 56.9MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.31ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 89.7MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.62ms. Allocated memory is still 113.2MB. Free memory was 89.7MB in the beginning and 88.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.84ms. Allocated memory is still 113.2MB. Free memory was 88.6MB in the beginning and 87.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.08ms. Allocated memory is still 113.2MB. Free memory was 87.6MB in the beginning and 79.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1086.84ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 74.9MB in the end (delta: 4.0MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 113.2MB. Free memory was 74.9MB in the beginning and 74.4MB in the end (delta: 512.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 40 + -1 * x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 56ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 11:49:41,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:49:41,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d28571a2-efc1-4377-831b-0afb59206202/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 Result: TRUE