./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/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_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/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_cae4200d-0a79-49d9-8cf8-341af2fd0445/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 f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 --- 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 20:58:27,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:58:27,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:58:27,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:58:27,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:58:27,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:58:27,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:58:27,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:58:27,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:58:27,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:58:27,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:58:27,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:58:27,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:58:27,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:58:27,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:58:27,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:58:27,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:58:27,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:58:27,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:58:27,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:58:27,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:58:27,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:58:27,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:58:27,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:58:27,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:58:27,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:58:27,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:58:27,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:58:27,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:58:27,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:58:27,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:58:27,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:58:27,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:58:27,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:58:27,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:58:27,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:58:27,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:58:27,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:58:27,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:58:27,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:58:27,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:58:27,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:58:27,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:58:27,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:58:27,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:58:27,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:58:27,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:58:27,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:58:27,686 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:58:27,686 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:58:27,686 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:58:27,686 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:58:27,688 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:58:27,688 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:58:27,689 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:58:27,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:58:27,689 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:58:27,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:58:27,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:58:27,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:58:27,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:58:27,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:58:27,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:58:27,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:58:27,691 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:58:27,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:58:27,694 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:58:27,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:58:27,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:58:27,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:58:27,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:58:27,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:58:27,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:58:27,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:58:27,697 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_cae4200d-0a79-49d9-8cf8-341af2fd0445/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 [2022-11-18 20:58:28,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:58:28,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:58:28,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:58:28,083 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:58:28,085 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:58:28,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2022-11-18 20:58:28,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/data/51bcc1b81/59b0ab0cddf2496286860a0b42bba6d3/FLAG104ae899f [2022-11-18 20:58:28,725 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:58:28,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2022-11-18 20:58:28,746 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/data/51bcc1b81/59b0ab0cddf2496286860a0b42bba6d3/FLAG104ae899f [2022-11-18 20:58:29,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/data/51bcc1b81/59b0ab0cddf2496286860a0b42bba6d3 [2022-11-18 20:58:29,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:58:29,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:58:29,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:29,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:58:29,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:58:29,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d1a68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29, skipping insertion in model container [2022-11-18 20:58:29,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:58:29,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:58:29,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:29,481 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:58:29,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:29,550 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:58:29,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29 WrapperNode [2022-11-18 20:58:29,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:29,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:29,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:58:29,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:58:29,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,618 INFO L138 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2022-11-18 20:58:29,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:29,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:58:29,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:58:29,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:58:29,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,663 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:58:29,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:58:29,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:58:29,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:58:29,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (1/1) ... [2022-11-18 20:58:29,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:29,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:29,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:29,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:58:29,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:58:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:58:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:58:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:58:29,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:58:29,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:58:30,015 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:58:30,017 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:58:30,160 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:58:30,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:58:30,167 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:58:30,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:30 BoogieIcfgContainer [2022-11-18 20:58:30,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:58:30,171 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:58:30,171 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:58:30,176 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:58:30,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:58:30,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:58:29" (1/3) ... [2022-11-18 20:58:30,178 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a447a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:58:30, skipping insertion in model container [2022-11-18 20:58:30,178 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:58:30,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:29" (2/3) ... [2022-11-18 20:58:30,179 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a447a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:58:30, skipping insertion in model container [2022-11-18 20:58:30,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:58:30,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:30" (3/3) ... [2022-11-18 20:58:30,181 INFO L332 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpcpy-alloca-1.i [2022-11-18 20:58:30,245 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:58:30,245 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:58:30,246 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:58:30,246 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:58:30,246 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:58:30,246 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:58:30,246 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:58:30,247 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:58:30,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:30,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 20:58:30,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:58:30,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:58:30,280 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:58:30,280 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:58:30,281 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:58:30,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:30,282 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 20:58:30,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:58:30,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:58:30,283 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:58:30,284 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:58:30,293 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; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 11#L521true assume !(main_~length1~0#1 < 1); 7#L521-2true assume !(main_~length2~0#1 < 1); 10#L524-1true assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 3#L531-3true [2022-11-18 20:58:30,293 INFO L750 eck$LassoCheckResult]: Loop: 3#L531-3true assume !!(main_~i~0#1 < main_~length2~0#1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 12#L531-2true main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 3#L531-3true [2022-11-18 20:58:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2022-11-18 20:58:30,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:30,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423167277] [2022-11-18 20:58:30,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:30,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:30,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:30,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:30,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:30,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1827, now seen corresponding path program 1 times [2022-11-18 20:58:30,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:30,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58807995] [2022-11-18 20:58:30,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:30,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:30,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:30,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:30,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939692, now seen corresponding path program 1 times [2022-11-18 20:58:30,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:30,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529689500] [2022-11-18 20:58:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:30,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:30,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:30,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:31,103 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:58:31,104 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:58:31,104 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:58:31,104 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:58:31,104 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:58:31,105 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:31,105 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:58:31,105 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:58:31,105 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca-1.i_Iteration1_Lasso [2022-11-18 20:58:31,105 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:58:31,106 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:58:31,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,145 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,559 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,597 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,600 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,604 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,621 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,631 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:31,635 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:32,162 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:58:32,169 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:58:32,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:32,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:32,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:32,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:32,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:58:32,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:32,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:58:32,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:32,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:32,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:32,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:58:32,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:58:32,239 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:32,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:32,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:32,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:32,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:32,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:58:32,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:32,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:32,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:58:32,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:32,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:32,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:32,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:58:32,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:58:32,286 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:32,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-11-18 20:58:32,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:32,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:32,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:32,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:32,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:58:32,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:32,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:58:32,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:32,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:32,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:32,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:58:32,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:58:32,341 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:32,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-18 20:58:32,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:32,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:32,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:58:32,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:32,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:32,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:32,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:32,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:32,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:58:32,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:58:32,430 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:58:32,500 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2022-11-18 20:58:32,501 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 18 variables to zero. [2022-11-18 20:58:32,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:32,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:32,509 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:32,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:58:32,531 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:58:32,549 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-18 20:58:32,549 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:58:32,550 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1) = -1*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8#1.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetString~0#1.offset >= 0] [2022-11-18 20:58:32,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-18 20:58:32,594 INFO L156 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2022-11-18 20:58:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:32,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:58:32,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:32,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:58:32,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:32,799 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:58:32,801 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:32,913 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 47 transitions. Complement of second has 8 states. [2022-11-18 20:58:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:58:32,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-11-18 20:58:32,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-18 20:58:32,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:58:32,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-18 20:58:32,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:58:32,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-18 20:58:32,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:58:32,929 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2022-11-18 20:58:32,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:58:32,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 12 states and 16 transitions. [2022-11-18 20:58:32,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-18 20:58:32,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 20:58:32,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2022-11-18 20:58:32,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:32,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-18 20:58:32,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2022-11-18 20:58:32,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 20:58:32,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) 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 20:58:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-18 20:58:32,970 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-18 20:58:32,970 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-18 20:58:32,970 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:58:32,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-11-18 20:58:32,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:58:32,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:58:32,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:58:32,972 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:32,972 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:58:32,972 INFO L748 eck$LassoCheckResult]: Stem: 137#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 138#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 144#L521 assume !(main_~length1~0#1 < 1); 142#L521-2 assume !(main_~length2~0#1 < 1); 143#L524-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 133#L531-3 assume !(main_~i~0#1 < main_~length2~0#1); 134#L531-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstpcpy } true;cstpcpy_#in~to#1.base, cstpcpy_#in~to#1.offset, cstpcpy_#in~from#1.base, cstpcpy_#in~from#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstpcpy_#res#1.base, cstpcpy_#res#1.offset;havoc cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset, cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset, cstpcpy_#t~mem4#1, cstpcpy_~to#1.base, cstpcpy_~to#1.offset, cstpcpy_~from#1.base, cstpcpy_~from#1.offset;cstpcpy_~to#1.base, cstpcpy_~to#1.offset := cstpcpy_#in~to#1.base, cstpcpy_#in~to#1.offset;cstpcpy_~from#1.base, cstpcpy_~from#1.offset := cstpcpy_#in~from#1.base, cstpcpy_#in~from#1.offset; 141#L515-4 [2022-11-18 20:58:32,973 INFO L750 eck$LassoCheckResult]: Loop: 141#L515-4 call cstpcpy_#t~mem4#1 := read~int(cstpcpy_~from#1.base, cstpcpy_~from#1.offset, 1);call write~int(cstpcpy_#t~mem4#1, cstpcpy_~to#1.base, cstpcpy_~to#1.offset, 1); 139#L515-1 assume !!(0 != cstpcpy_#t~mem4#1);havoc cstpcpy_#t~mem4#1; 140#L515-3 cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset := cstpcpy_~from#1.base, 1 + cstpcpy_~from#1.offset;cstpcpy_~from#1.base, cstpcpy_~from#1.offset := cstpcpy_~from#1.base, 1 + cstpcpy_~from#1.offset;havoc cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset;cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset := cstpcpy_~to#1.base, 1 + cstpcpy_~to#1.offset;cstpcpy_~to#1.base, cstpcpy_~to#1.offset := cstpcpy_~to#1.base, 1 + cstpcpy_~to#1.offset;havoc cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset; 141#L515-4 [2022-11-18 20:58:32,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:32,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939634, now seen corresponding path program 1 times [2022-11-18 20:58:32,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:32,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854862906] [2022-11-18 20:58:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:32,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:33,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:33,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854862906] [2022-11-18 20:58:33,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854862906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:33,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:33,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:58:33,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328295789] [2022-11-18 20:58:33,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:33,179 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:58:33,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 1 times [2022-11-18 20:58:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:33,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038515928] [2022-11-18 20:58:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:33,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:33,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:33,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:58:33,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:58:33,341 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:58:33,372 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2022-11-18 20:58:33,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2022-11-18 20:58:33,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:58:33,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 16 transitions. [2022-11-18 20:58:33,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-18 20:58:33,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 20:58:33,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2022-11-18 20:58:33,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:33,375 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-18 20:58:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2022-11-18 20:58:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-11-18 20:58:33,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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 20:58:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-11-18 20:58:33,377 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 20:58:33,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:58:33,379 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 20:58:33,379 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:58:33,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-11-18 20:58:33,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:58:33,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:58:33,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:58:33,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:33,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:58:33,381 INFO L748 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 176#L521 assume !(main_~length1~0#1 < 1); 174#L521-2 assume !(main_~length2~0#1 < 1); 175#L524-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 165#L531-3 assume !!(main_~i~0#1 < main_~length2~0#1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 166#L531-2 main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 167#L531-3 assume !(main_~i~0#1 < main_~length2~0#1); 168#L531-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstpcpy } true;cstpcpy_#in~to#1.base, cstpcpy_#in~to#1.offset, cstpcpy_#in~from#1.base, cstpcpy_#in~from#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstpcpy_#res#1.base, cstpcpy_#res#1.offset;havoc cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset, cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset, cstpcpy_#t~mem4#1, cstpcpy_~to#1.base, cstpcpy_~to#1.offset, cstpcpy_~from#1.base, cstpcpy_~from#1.offset;cstpcpy_~to#1.base, cstpcpy_~to#1.offset := cstpcpy_#in~to#1.base, cstpcpy_#in~to#1.offset;cstpcpy_~from#1.base, cstpcpy_~from#1.offset := cstpcpy_#in~from#1.base, cstpcpy_#in~from#1.offset; 173#L515-4 [2022-11-18 20:58:33,381 INFO L750 eck$LassoCheckResult]: Loop: 173#L515-4 call cstpcpy_#t~mem4#1 := read~int(cstpcpy_~from#1.base, cstpcpy_~from#1.offset, 1);call write~int(cstpcpy_#t~mem4#1, cstpcpy_~to#1.base, cstpcpy_~to#1.offset, 1); 171#L515-1 assume !!(0 != cstpcpy_#t~mem4#1);havoc cstpcpy_#t~mem4#1; 172#L515-3 cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset := cstpcpy_~from#1.base, 1 + cstpcpy_~from#1.offset;cstpcpy_~from#1.base, cstpcpy_~from#1.offset := cstpcpy_~from#1.base, 1 + cstpcpy_~from#1.offset;havoc cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset;cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset := cstpcpy_~to#1.base, 1 + cstpcpy_~to#1.offset;cstpcpy_~to#1.base, cstpcpy_~to#1.offset := cstpcpy_~to#1.base, 1 + cstpcpy_~to#1.offset;havoc cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset; 173#L515-4 [2022-11-18 20:58:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1302257236, now seen corresponding path program 1 times [2022-11-18 20:58:33,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:33,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643965881] [2022-11-18 20:58:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:33,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:33,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:33,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:33,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:33,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:33,466 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 2 times [2022-11-18 20:58:33,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:33,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510198987] [2022-11-18 20:58:33,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:33,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:33,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:33,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:33,484 INFO L85 PathProgramCache]: Analyzing trace with hash -894230189, now seen corresponding path program 1 times [2022-11-18 20:58:33,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:33,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308718450] [2022-11-18 20:58:33,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:33,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:33,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:33,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:33,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308718450] [2022-11-18 20:58:33,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308718450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:33,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231692914] [2022-11-18 20:58:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:33,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:33,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:33,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:34,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:58:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:34,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:58:34,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:34,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-18 20:58:34,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-18 20:58:34,431 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:34,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10 [2022-11-18 20:58:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:34,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:58:34,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2022-11-18 20:58:34,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-18 20:58:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:34,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231692914] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:58:34,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:58:34,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2022-11-18 20:58:34,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222267767] [2022-11-18 20:58:34,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:58:34,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:34,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:58:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:58:34,861 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 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 20:58:35,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:58:35,123 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2022-11-18 20:58:35,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 22 transitions. [2022-11-18 20:58:35,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:58:35,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 16 states and 19 transitions. [2022-11-18 20:58:35,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 20:58:35,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-18 20:58:35,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2022-11-18 20:58:35,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:35,125 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-18 20:58:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2022-11-18 20:58:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-11-18 20:58:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:35,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-18 20:58:35,127 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-18 20:58:35,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:58:35,129 INFO L428 stractBuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-18 20:58:35,129 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:58:35,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2022-11-18 20:58:35,130 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:58:35,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:58:35,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:58:35,131 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:35,131 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:58:35,131 INFO L748 eck$LassoCheckResult]: Stem: 297#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 298#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 305#L521 assume !(main_~length1~0#1 < 1); 302#L521-2 assume !(main_~length2~0#1 < 1); 303#L524-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 4294967296);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 293#L531-3 assume !!(main_~i~0#1 < main_~length2~0#1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 294#L531-2 main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 295#L531-3 assume !!(main_~i~0#1 < main_~length2~0#1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 296#L531-2 main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 306#L531-3 assume !(main_~i~0#1 < main_~length2~0#1); 304#L531-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstpcpy } true;cstpcpy_#in~to#1.base, cstpcpy_#in~to#1.offset, cstpcpy_#in~from#1.base, cstpcpy_#in~from#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstpcpy_#res#1.base, cstpcpy_#res#1.offset;havoc cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset, cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset, cstpcpy_#t~mem4#1, cstpcpy_~to#1.base, cstpcpy_~to#1.offset, cstpcpy_~from#1.base, cstpcpy_~from#1.offset;cstpcpy_~to#1.base, cstpcpy_~to#1.offset := cstpcpy_#in~to#1.base, cstpcpy_#in~to#1.offset;cstpcpy_~from#1.base, cstpcpy_~from#1.offset := cstpcpy_#in~from#1.base, cstpcpy_#in~from#1.offset; 301#L515-4 [2022-11-18 20:58:35,131 INFO L750 eck$LassoCheckResult]: Loop: 301#L515-4 call cstpcpy_#t~mem4#1 := read~int(cstpcpy_~from#1.base, cstpcpy_~from#1.offset, 1);call write~int(cstpcpy_#t~mem4#1, cstpcpy_~to#1.base, cstpcpy_~to#1.offset, 1); 299#L515-1 assume !!(0 != cstpcpy_#t~mem4#1);havoc cstpcpy_#t~mem4#1; 300#L515-3 cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset := cstpcpy_~from#1.base, 1 + cstpcpy_~from#1.offset;cstpcpy_~from#1.base, cstpcpy_~from#1.offset := cstpcpy_~from#1.base, 1 + cstpcpy_~from#1.offset;havoc cstpcpy_#t~pre2#1.base, cstpcpy_#t~pre2#1.offset;cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset := cstpcpy_~to#1.base, 1 + cstpcpy_~to#1.offset;cstpcpy_~to#1.base, cstpcpy_~to#1.offset := cstpcpy_~to#1.base, 1 + cstpcpy_~to#1.offset;havoc cstpcpy_#t~pre3#1.base, cstpcpy_#t~pre3#1.offset; 301#L515-4 [2022-11-18 20:58:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:35,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1633777206, now seen corresponding path program 2 times [2022-11-18 20:58:35,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:35,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583397510] [2022-11-18 20:58:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:35,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:35,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:35,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:35,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 66694, now seen corresponding path program 3 times [2022-11-18 20:58:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:35,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19355224] [2022-11-18 20:58:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:35,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:35,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:35,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:35,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1287382577, now seen corresponding path program 2 times [2022-11-18 20:58:35,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:35,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325514751] [2022-11-18 20:58:35,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:35,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:35,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:58:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:58:35,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:58:36,331 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:58:36,331 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:58:36,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:58:36,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:58:36,332 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:58:36,332 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:36,332 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:58:36,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:58:36,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpcpy-alloca-1.i_Iteration4_Lasso [2022-11-18 20:58:36,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:58:36,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:58:36,338 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:36,344 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:36,348 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:36,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:36,354 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,199 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,201 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,209 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,211 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,213 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,216 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:37,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:58:38,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:58:38,210 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:58:38,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,212 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:58:38,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:58:38,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,244 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:58:38,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:58:38,253 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:38,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:58:38,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:58:38,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:58:38,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:58:38,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:38,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,311 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:58:38,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:58:38,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:58:38,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:58:38,327 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:38,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,332 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:58:38,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:58:38,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:58:38,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-11-18 20:58:38,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,381 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:58:38,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:58:38,403 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:58:38,426 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:38,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,436 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:58:38,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:58:38,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:58:38,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:38,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,484 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:58:38,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:58:38,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:58:38,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:38,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,540 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:58:38,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:58:38,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:58:38,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:58:38,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:58:38,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:38,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,602 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:58:38,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:58:38,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:58:38,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:58:38,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:58:38,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:58:38,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:58:38,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:58:38,689 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:58:38,843 INFO L443 ModelExtractionUtils]: Simplification made 27 calls to the SMT solver. [2022-11-18 20:58:38,843 INFO L444 ModelExtractionUtils]: 24 out of 49 variables were initially zero. Simplification set additionally 20 variables to zero. [2022-11-18 20:58:38,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:58:38,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:38,847 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:38,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:58:38,887 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:58:38,916 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-18 20:58:38,916 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:58:38,916 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstpcpy_~from#1.offset) = -2*ULTIMATE.start_cstpcpy_~from#1.offset + 8589934589 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc7#1.base)_2 + 4294967295 >= 0] [2022-11-18 20:58:38,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:39,026 INFO L156 tatePredicateManager]: 16 out of 19 supporting invariants were superfluous and have been removed [2022-11-18 20:58:39,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:39,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-18 20:58:39,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:39,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:58:39,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-18 20:58:39,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-18 20:58:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:39,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 20:58:39,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:39,313 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-18 20:58:39,314 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:39,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 21 transitions. Complement of second has 5 states. [2022-11-18 20:58:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:58:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:58:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-18 20:58:39,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 3 letters. [2022-11-18 20:58:39,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:58:39,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-18 20:58:39,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:58:39,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 6 letters. [2022-11-18 20:58:39,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:58:39,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2022-11-18 20:58:39,369 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:58:39,370 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2022-11-18 20:58:39,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:58:39,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:58:39,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:58:39,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:39,370 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:58:39,371 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:58:39,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:58:39,371 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:58:39,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:58:39,371 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:58:39,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:58:39,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:58:39 BoogieIcfgContainer [2022-11-18 20:58:39,380 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:58:39,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:58:39,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:58:39,381 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:58:39,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:30" (3/4) ... [2022-11-18 20:58:39,385 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:58:39,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:58:39,386 INFO L158 Benchmark]: Toolchain (without parser) took 10331.96ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 113.7MB in the beginning and 122.9MB in the end (delta: -9.2MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-11-18 20:58:39,386 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory was 131.2MB in the beginning and 131.0MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:58:39,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.04ms. Allocated memory is still 155.2MB. Free memory was 113.5MB in the beginning and 121.6MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:58:39,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.94ms. Allocated memory is still 155.2MB. Free memory was 121.6MB in the beginning and 120.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:58:39,388 INFO L158 Benchmark]: Boogie Preprocessor took 59.96ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 118.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:58:39,388 INFO L158 Benchmark]: RCFGBuilder took 489.98ms. Allocated memory is still 155.2MB. Free memory was 118.4MB in the beginning and 106.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:58:39,389 INFO L158 Benchmark]: BuchiAutomizer took 9208.93ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 106.9MB in the beginning and 124.0MB in the end (delta: -17.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-11-18 20:58:39,390 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 192.9MB. Free memory was 124.0MB in the beginning and 122.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:58:39,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory was 131.2MB in the beginning and 131.0MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.04ms. Allocated memory is still 155.2MB. Free memory was 113.5MB in the beginning and 121.6MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.94ms. Allocated memory is still 155.2MB. Free memory was 121.6MB in the beginning and 120.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.96ms. Allocated memory is still 155.2MB. Free memory was 120.3MB in the beginning and 118.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.98ms. Allocated memory is still 155.2MB. Free memory was 118.4MB in the beginning and 106.9MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 9208.93ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 106.9MB in the beginning and 124.0MB in the end (delta: -17.1MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 192.9MB. Free memory was 124.0MB in the beginning and 122.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function 8589934589 + -2 * from and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 8.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 9 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 41 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital168 mio100 ax111 hnf100 lsp84 ukn91 mio100 lsp52 div204 bol100 ite100 ukn100 eq163 hnf92 smp69 dnf100 smp100 tf100 neg99 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 198ms VariablesStem: 12 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 20:58:39,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:39,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:39,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cae4200d-0a79-49d9-8cf8-341af2fd0445/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE