./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c973e7f310a848892a18e3f534717b85b3f4d9e6c87fd06bd7bcf01c28300fa4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:52:41,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:52:41,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:52:41,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:52:41,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:52:41,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:52:41,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:52:41,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:52:41,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:52:41,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:52:41,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:52:41,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:52:41,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:52:41,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:52:41,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:52:41,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:52:41,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:52:41,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:52:41,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:52:41,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:52:41,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:52:41,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:52:41,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:52:41,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:52:41,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:52:41,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:52:41,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:52:41,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:52:41,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:52:41,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:52:41,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:52:41,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:52:41,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:52:41,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:52:41,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:52:41,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:52:41,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:52:41,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:52:41,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:52:41,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:52:41,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:52:41,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:52:42,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:52:42,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:52:42,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:52:42,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:52:42,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:52:42,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:52:42,024 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:52:42,024 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:52:42,024 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:52:42,024 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:52:42,025 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:52:42,026 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:52:42,026 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:52:42,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:52:42,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:52:42,027 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:52:42,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:52:42,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:52:42,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:52:42,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:52:42,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:52:42,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:52:42,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:52:42,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:52:42,028 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:52:42,028 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:52:42,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:52:42,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:52:42,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:52:42,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:52:42,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:52:42,032 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:52:42,033 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_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c973e7f310a848892a18e3f534717b85b3f4d9e6c87fd06bd7bcf01c28300fa4 [2022-11-18 19:52:42,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:52:42,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:52:42,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:52:42,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:52:42,344 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:52:42,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2022-11-18 19:52:42,429 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/data/59b9c582a/e03eedc5415c4c23b8a64485fc748adf/FLAGfc10c6662 [2022-11-18 19:52:43,048 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:52:43,049 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2022-11-18 19:52:43,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/data/59b9c582a/e03eedc5415c4c23b8a64485fc748adf/FLAGfc10c6662 [2022-11-18 19:52:43,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/data/59b9c582a/e03eedc5415c4c23b8a64485fc748adf [2022-11-18 19:52:43,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:52:43,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:52:43,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:43,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:52:43,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:52:43,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c85c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43, skipping insertion in model container [2022-11-18 19:52:43,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:52:43,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:52:43,625 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/sv-benchmarks/c/loop-acceleration/phases_2-2.c[459,472] [2022-11-18 19:52:43,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:43,661 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:52:43,676 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/sv-benchmarks/c/loop-acceleration/phases_2-2.c[459,472] [2022-11-18 19:52:43,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:43,696 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:52:43,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43 WrapperNode [2022-11-18 19:52:43,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:43,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:43,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:52:43,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:52:43,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,734 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-11-18 19:52:43,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:43,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:52:43,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:52:43,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:52:43,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,755 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:52:43,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:52:43,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:52:43,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:52:43,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (1/1) ... [2022-11-18 19:52:43,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:52:43,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:52:43,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:52:43,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:52:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:52:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:52:43,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:52:43,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:52:43,909 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:52:43,911 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:52:44,052 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:52:44,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:52:44,058 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:52:44,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:44 BoogieIcfgContainer [2022-11-18 19:52:44,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:52:44,062 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:52:44,062 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:52:44,066 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:52:44,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:52:44,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:52:43" (1/3) ... [2022-11-18 19:52:44,069 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6079e10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:52:44, skipping insertion in model container [2022-11-18 19:52:44,069 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:52:44,069 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:43" (2/3) ... [2022-11-18 19:52:44,070 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6079e10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:52:44, skipping insertion in model container [2022-11-18 19:52:44,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:52:44,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:44" (3/3) ... [2022-11-18 19:52:44,072 INFO L332 chiAutomizerObserver]: Analyzing ICFG phases_2-2.c [2022-11-18 19:52:44,133 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:52:44,133 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:52:44,133 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:52:44,133 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:52:44,133 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:52:44,134 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:52:44,134 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:52:44,134 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:52:44,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:44,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 19:52:44,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:52:44,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:52:44,167 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 19:52:44,167 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 19:52:44,167 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:52:44,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:52:44,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 19:52:44,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:52:44,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:52:44,170 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 19:52:44,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 19:52:44,180 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := 1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 7#L21true assume !!(main_~y~0#1 % 4294967296 > 0); 5#L24-2true [2022-11-18 19:52:44,180 INFO L750 eck$LassoCheckResult]: Loop: 5#L24-2true assume !!(main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296); 9#L24true assume main_~x~0#1 % 4294967296 < (if main_~y~0#1 % 4294967296 < 0 && 0 != main_~y~0#1 % 4294967296 % (main_~x~0#1 % 4294967296) then (if main_~x~0#1 % 4294967296 < 0 then main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296) - 1 else 1 + main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296)) else main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296)) % 4294967296;main_~x~0#1 := main_~x~0#1 * main_~x~0#1; 5#L24-2true [2022-11-18 19:52:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:44,187 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-11-18 19:52:44,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:44,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516918787] [2022-11-18 19:52:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:44,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:44,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:52:44,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:44,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1476, now seen corresponding path program 1 times [2022-11-18 19:52:44,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:44,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126655080] [2022-11-18 19:52:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:44,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:44,348 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:52:44,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389034863] [2022-11-18 19:52:44,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:44,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:52:44,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:52:44,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:52:44,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:52:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:44,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:44,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:52:44,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:52:44,439 INFO L85 PathProgramCache]: Analyzing trace with hash 28695975, now seen corresponding path program 1 times [2022-11-18 19:52:44,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:52:44,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841483916] [2022-11-18 19:52:44,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:44,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:52:44,453 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:52:44,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488397680] [2022-11-18 19:52:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:52:44,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:52:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:52:44,483 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:52:44,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:52:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:44,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:44,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:52:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:45,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:52:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:52:45,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:52:45 BoogieIcfgContainer [2022-11-18 19:52:45,094 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:52:45,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:52:45,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:52:45,098 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:52:45,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:44" (3/4) ... [2022-11-18 19:52:45,103 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 19:52:45,152 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:52:45,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:52:45,154 INFO L158 Benchmark]: Toolchain (without parser) took 1744.19ms. Allocated memory is still 134.2MB. Free memory was 97.8MB in the beginning and 64.3MB in the end (delta: 33.6MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2022-11-18 19:52:45,155 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 107.6MB in the beginning and 107.5MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:52:45,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.62ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 109.4MB in the end (delta: -11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:52:45,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.63ms. Allocated memory is still 134.2MB. Free memory was 109.4MB in the beginning and 108.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:52:45,160 INFO L158 Benchmark]: Boogie Preprocessor took 22.84ms. Allocated memory is still 134.2MB. Free memory was 108.2MB in the beginning and 107.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:52:45,163 INFO L158 Benchmark]: RCFGBuilder took 302.20ms. Allocated memory is still 134.2MB. Free memory was 107.2MB in the beginning and 96.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:52:45,164 INFO L158 Benchmark]: BuchiAutomizer took 1033.00ms. Allocated memory is still 134.2MB. Free memory was 96.7MB in the beginning and 65.9MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-18 19:52:45,164 INFO L158 Benchmark]: Witness Printer took 56.19ms. Allocated memory is still 134.2MB. Free memory was 65.9MB in the beginning and 64.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:52:45,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 107.6MB in the beginning and 107.5MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.62ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 109.4MB in the end (delta: -11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.63ms. Allocated memory is still 134.2MB. Free memory was 109.4MB in the beginning and 108.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.84ms. Allocated memory is still 134.2MB. Free memory was 108.2MB in the beginning and 107.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.20ms. Allocated memory is still 134.2MB. Free memory was 107.2MB in the beginning and 96.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1033.00ms. Allocated memory is still 134.2MB. Free memory was 96.7MB in the beginning and 65.9MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 56.19ms. Allocated memory is still 134.2MB. Free memory was 65.9MB in the beginning and 64.3MB 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 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: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:52:45,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:45,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:52:45,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_727f3710-c871-4bf7-8b5d-b398cc515195/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)