./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/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_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3768a5ec02c52965864e042833cd9026b51809a0436795e6243a8a542ef62816 --- 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 20:07:43,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:07:43,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:07:43,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:07:43,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:07:43,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:07:43,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:07:43,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:07:43,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:07:43,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:07:43,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:07:43,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:07:43,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:07:43,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:07:43,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:07:43,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:07:43,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:07:43,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:07:43,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:07:43,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:07:43,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:07:43,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:07:43,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:07:43,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:07:43,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:07:43,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:07:43,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:07:43,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:07:43,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:07:43,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:07:43,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:07:43,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:07:43,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:07:43,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:07:43,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:07:43,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:07:43,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:07:43,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:07:43,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:07:43,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:07:43,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:07:43,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:07:43,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:07:43,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:07:43,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:07:43,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:07:43,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:07:43,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:07:43,367 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:07:43,368 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:07:43,368 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:07:43,368 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:07:43,370 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:07:43,370 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:07:43,370 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:07:43,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:07:43,371 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:07:43,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:07:43,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:07:43,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:07:43,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:07:43,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:07:43,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:07:43,373 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:07:43,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:07:43,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:07:43,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:07:43,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:07:43,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:07:43,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:07:43,376 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:07:43,376 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_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3768a5ec02c52965864e042833cd9026b51809a0436795e6243a8a542ef62816 [2022-11-18 20:07:43,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:07:43,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:07:43,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:07:43,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:07:43,764 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:07:43,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i [2022-11-18 20:07:43,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/data/6544cf7a9/f5659732046b44979d28ea2cd690450b/FLAG4022e4879 [2022-11-18 20:07:44,448 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:07:44,449 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcmp-alloca-2.i [2022-11-18 20:07:44,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/data/6544cf7a9/f5659732046b44979d28ea2cd690450b/FLAG4022e4879 [2022-11-18 20:07:44,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/data/6544cf7a9/f5659732046b44979d28ea2cd690450b [2022-11-18 20:07:44,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:07:44,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:07:44,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:44,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:07:44,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:07:44,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:44" (1/1) ... [2022-11-18 20:07:44,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@588cd936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:44, skipping insertion in model container [2022-11-18 20:07:44,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:07:44" (1/1) ... [2022-11-18 20:07:44,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:07:44,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:07:45,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:45,405 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:07:45,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:07:45,488 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:07:45,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45 WrapperNode [2022-11-18 20:07:45,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:07:45,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:45,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:07:45,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:07:45,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,540 INFO L138 Inliner]: procedures = 112, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2022-11-18 20:07:45,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:07:45,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:07:45,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:07:45,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:07:45,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,571 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:07:45,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:07:45,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:07:45,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:07:45,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (1/1) ... [2022-11-18 20:07:45,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:45,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:45,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:45,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:07:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:07:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:07:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:07:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:07:45,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:07:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:07:45,820 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:07:45,823 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:07:46,097 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:07:46,104 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:07:46,104 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 20:07:46,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:46 BoogieIcfgContainer [2022-11-18 20:07:46,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:07:46,107 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:07:46,107 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:07:46,119 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:07:46,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:07:46,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:07:44" (1/3) ... [2022-11-18 20:07:46,121 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fc275f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:07:46, skipping insertion in model container [2022-11-18 20:07:46,121 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:07:46,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:07:45" (2/3) ... [2022-11-18 20:07:46,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fc275f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:07:46, skipping insertion in model container [2022-11-18 20:07:46,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:07:46,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:46" (3/3) ... [2022-11-18 20:07:46,124 INFO L332 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcmp-alloca-2.i [2022-11-18 20:07:46,222 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:07:46,222 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:07:46,223 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:07:46,223 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:07:46,223 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:07:46,224 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:07:46,224 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:07:46,224 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:07:46,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 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 20:07:46,253 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2022-11-18 20:07:46,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:07:46,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:07:46,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:07:46,261 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:07:46,261 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:07:46,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 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 20:07:46,264 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2022-11-18 20:07:46,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:07:46,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:07:46,265 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:07:46,265 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:07:46,275 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 11#L559true assume !(main_~length1~0#1 < 1); 15#L559-2true assume !(main_~length2~0#1 < 1); 12#L562-1true call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 8#L567-3true [2022-11-18 20:07:46,276 INFO L750 eck$LassoCheckResult]: Loop: 8#L567-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 18#L567-2true main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 8#L567-3true [2022-11-18 20:07:46,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:46,282 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2022-11-18 20:07:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:46,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127617449] [2022-11-18 20:07:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:46,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:46,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:46,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:46,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2022-11-18 20:07:46,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:46,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577815489] [2022-11-18 20:07:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:46,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:46,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:46,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2022-11-18 20:07:46,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:46,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292761943] [2022-11-18 20:07:46,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:46,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:46,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:46,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:47,373 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:07:47,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:07:47,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:07:47,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:07:47,375 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:07:47,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:47,375 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:07:47,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:07:47,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-2.i_Iteration1_Lasso [2022-11-18 20:07:47,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:07:47,378 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:07:47,410 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 20:07:47,422 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 20:07:47,433 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 20:07:47,438 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 20:07:47,809 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 20:07:47,813 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 20:07:47,818 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 20:07:47,821 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 20:07:47,826 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 20:07:47,830 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 20:07:47,839 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 20:07:47,843 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 20:07:47,847 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 20:07:47,853 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 20:07:47,858 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 20:07:48,418 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:07:48,424 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:07:48,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:48,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:48,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:48,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:07:48,442 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 20:07:48,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:48,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:48,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:48,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:48,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:48,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:48,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:48,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:48,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:48,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:48,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:48,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:48,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:07:48,506 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 20:07:48,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:48,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:48,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:48,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:48,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:48,534 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:48,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:48,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:48,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:48,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:48,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:48,561 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 20:07:48,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:07:48,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:48,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:48,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:48,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:48,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:48,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:48,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:48,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:48,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:48,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:48,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:48,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:48,613 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 20:07:48,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:07:48,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:48,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:48,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:48,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:48,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:48,635 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:48,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:48,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:48,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:48,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:48,665 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:48,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:07:48,668 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 20:07:48,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:48,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:48,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:48,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:48,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:48,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:48,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:48,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:48,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:48,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:48,760 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:48,773 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 20:07:48,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:07:48,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:48,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:48,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:48,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:48,802 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:48,802 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:48,828 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:07:48,893 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-11-18 20:07:48,893 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-11-18 20:07:48,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:48,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:48,911 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:48,920 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:07:48,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:07:48,958 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:07:48,959 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:07:48,959 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 20:07:48,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:49,012 INFO L156 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2022-11-18 20:07:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:49,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:07:49,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:49,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:07:49,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:49,159 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 20:07:49,208 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 20:07:49,211 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 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 20:07:49,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 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 45 states and 64 transitions. Complement of second has 7 states. [2022-11-18 20:07:49,283 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 20:07:49,293 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 20:07:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2022-11-18 20:07:49,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-18 20:07:49,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:49,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-18 20:07:49,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:49,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-18 20:07:49,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:49,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2022-11-18 20:07:49,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 20:07:49,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 15 states and 20 transitions. [2022-11-18 20:07:49,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 20:07:49,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-11-18 20:07:49,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2022-11-18 20:07:49,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:49,322 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2022-11-18 20:07:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2022-11-18 20:07:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 20:07:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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 20:07:49,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2022-11-18 20:07:49,358 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2022-11-18 20:07:49,359 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2022-11-18 20:07:49,359 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:07:49,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2022-11-18 20:07:49,363 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 20:07:49,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:07:49,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:07:49,364 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:49,364 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:07:49,364 INFO L748 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 136#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 146#L559 assume !(main_~length1~0#1 < 1); 148#L559-2 assume !(main_~length2~0#1 < 1); 149#L562-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 142#L567-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 143#L567-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := 0; 138#L572-3 [2022-11-18 20:07:49,365 INFO L750 eck$LassoCheckResult]: Loop: 138#L572-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 137#L572-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 138#L572-3 [2022-11-18 20:07:49,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2022-11-18 20:07:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:49,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438489125] [2022-11-18 20:07:49,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:49,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:49,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:49,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:49,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2022-11-18 20:07:49,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:49,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783813747] [2022-11-18 20:07:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:49,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:49,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:49,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:49,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:49,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2022-11-18 20:07:49,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:49,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487780978] [2022-11-18 20:07:49,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:49,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:49,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:49,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:50,136 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:07:50,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:07:50,137 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:07:50,137 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:07:50,137 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:07:50,137 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:50,137 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:07:50,137 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:07:50,137 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-2.i_Iteration2_Lasso [2022-11-18 20:07:50,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:07:50,138 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:07:50,142 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 20:07:50,145 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 20:07:50,149 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 20:07:50,152 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 20:07:50,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:50,544 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 20:07:50,548 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 20:07:50,551 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 20:07:50,555 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 20:07:50,559 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 20:07:50,566 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 20:07:50,570 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 20:07:50,573 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 20:07:50,578 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 20:07:51,121 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:07:51,121 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:07:51,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:51,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:51,127 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:51,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:07:51,137 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 20:07:51,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:51,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:51,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:51,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:51,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:51,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:51,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:51,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:51,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:51,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:51,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:51,184 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:51,188 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 20:07:51,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:07:51,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:51,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:51,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:51,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:51,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:51,205 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:51,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:51,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:51,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:51,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:51,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:51,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:51,232 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 20:07:51,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:07:51,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:51,248 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:51,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:51,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:51,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:51,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:51,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:51,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:51,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:51,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:51,277 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:51,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:07:51,282 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 20:07:51,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:51,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:51,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:51,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:51,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:51,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:51,349 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:07:51,389 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-18 20:07:51,390 INFO L444 ModelExtractionUtils]: 21 out of 37 variables were initially zero. Simplification set additionally 13 variables to zero. [2022-11-18 20:07:51,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:51,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:51,392 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:51,400 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:07:51,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:07:51,428 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:07:51,428 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:07:51,429 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~length2~0#1) = -1*ULTIMATE.start_main_~i~1#1 + 1*ULTIMATE.start_main_~length2~0#1 Supporting invariants [] [2022-11-18 20:07:51,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:51,471 INFO L156 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2022-11-18 20:07:51,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:51,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:07:51,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:51,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:07:51,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:51,566 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 20:07:51,567 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 20:07:51,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:51,587 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 30 transitions. Complement of second has 6 states. [2022-11-18 20:07:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:07:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-11-18 20:07:51,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-18 20:07:51,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:51,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 2 letters. [2022-11-18 20:07:51,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:51,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-18 20:07:51,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:51,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2022-11-18 20:07:51,592 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:07:51,600 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 22 transitions. [2022-11-18 20:07:51,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-18 20:07:51,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 20:07:51,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2022-11-18 20:07:51,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:51,602 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:07:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2022-11-18 20:07:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 20:07:51,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) 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 20:07:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2022-11-18 20:07:51,604 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:07:51,604 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2022-11-18 20:07:51,604 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:07:51,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2022-11-18 20:07:51,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:07:51,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:07:51,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:07:51,606 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:51,606 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:07:51,607 INFO L748 eck$LassoCheckResult]: Stem: 248#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 249#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 259#L559 assume !(main_~length1~0#1 < 1); 261#L559-2 assume !(main_~length2~0#1 < 1); 262#L562-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 255#L567-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 256#L567-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := 0; 263#L572-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 260#L572-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcmp } true;cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset, cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcmp_#res#1;havoc cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset, cstrcmp_#t~mem6#1, cstrcmp_#t~mem3#1, cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset, cstrcmp_#t~mem4#1, cstrcmp_#t~mem8#1, cstrcmp_#t~pre7#1.base, cstrcmp_#t~pre7#1.offset, cstrcmp_#t~mem9#1, cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset; 252#L551-3 [2022-11-18 20:07:51,607 INFO L750 eck$LassoCheckResult]: Loop: 252#L551-3 call cstrcmp_#t~mem3#1 := read~int(cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, 1);cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset := cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#t~post2#1.base, 1 + cstrcmp_#t~post2#1.offset;call cstrcmp_#t~mem4#1 := read~int(cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset, 1); 253#L551-1 assume !!(cstrcmp_#t~mem3#1 == cstrcmp_#t~mem4#1);havoc cstrcmp_#t~mem3#1;havoc cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset;havoc cstrcmp_#t~mem4#1;cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset := cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#t~post5#1.base, 1 + cstrcmp_#t~post5#1.offset;call cstrcmp_#t~mem6#1 := read~int(cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset, 1); 254#L552 assume !(0 == cstrcmp_#t~mem6#1);havoc cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset;havoc cstrcmp_#t~mem6#1; 252#L551-3 [2022-11-18 20:07:51,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2022-11-18 20:07:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:51,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755354504] [2022-11-18 20:07:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:51,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:51,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:51,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:51,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:51,693 INFO L85 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 1 times [2022-11-18 20:07:51,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:51,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225780209] [2022-11-18 20:07:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:51,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:51,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:51,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:51,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:51,729 INFO L85 PathProgramCache]: Analyzing trace with hash -296047681, now seen corresponding path program 1 times [2022-11-18 20:07:51,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:51,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79502280] [2022-11-18 20:07:51,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:51,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:52,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:52,432 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 20:07:52,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:52,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79502280] [2022-11-18 20:07:52,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79502280] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:52,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:52,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:07:52,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054058966] [2022-11-18 20:07:52,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:52,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:52,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:07:52,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:07:52,650 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:07:52,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:52,824 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-11-18 20:07:52,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2022-11-18 20:07:52,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:07:52,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2022-11-18 20:07:52,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 20:07:52,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 20:07:52,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2022-11-18 20:07:52,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:52,826 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-11-18 20:07:52,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2022-11-18 20:07:52,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-18 20:07:52,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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 20:07:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2022-11-18 20:07:52,828 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-11-18 20:07:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:07:52,833 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-11-18 20:07:52,833 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:07:52,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2022-11-18 20:07:52,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:07:52,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:07:52,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:07:52,835 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:52,835 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:07:52,835 INFO L748 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 309#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 319#L559 assume !(main_~length1~0#1 < 1); 321#L559-2 assume !(main_~length2~0#1 < 1); 322#L562-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 315#L567-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 316#L567-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 317#L567-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 318#L567-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := 0; 323#L572-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 320#L572-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcmp } true;cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset, cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcmp_#res#1;havoc cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset, cstrcmp_#t~mem6#1, cstrcmp_#t~mem3#1, cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset, cstrcmp_#t~mem4#1, cstrcmp_#t~mem8#1, cstrcmp_#t~pre7#1.base, cstrcmp_#t~pre7#1.offset, cstrcmp_#t~mem9#1, cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset; 312#L551-3 [2022-11-18 20:07:52,835 INFO L750 eck$LassoCheckResult]: Loop: 312#L551-3 call cstrcmp_#t~mem3#1 := read~int(cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, 1);cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset := cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#t~post2#1.base, 1 + cstrcmp_#t~post2#1.offset;call cstrcmp_#t~mem4#1 := read~int(cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset, 1); 313#L551-1 assume !!(cstrcmp_#t~mem3#1 == cstrcmp_#t~mem4#1);havoc cstrcmp_#t~mem3#1;havoc cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset;havoc cstrcmp_#t~mem4#1;cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset := cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#t~post5#1.base, 1 + cstrcmp_#t~post5#1.offset;call cstrcmp_#t~mem6#1 := read~int(cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset, 1); 314#L552 assume !(0 == cstrcmp_#t~mem6#1);havoc cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset;havoc cstrcmp_#t~mem6#1; 312#L551-3 [2022-11-18 20:07:52,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:52,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2022-11-18 20:07:52,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:52,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301121591] [2022-11-18 20:07:52,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:52,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:52,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:52,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:52,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:52,903 INFO L85 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 2 times [2022-11-18 20:07:52,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:52,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838904258] [2022-11-18 20:07:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:52,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:52,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:52,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:52,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:52,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1311502365, now seen corresponding path program 1 times [2022-11-18 20:07:52,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:52,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842487663] [2022-11-18 20:07:52,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:52,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:07:53,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:53,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842487663] [2022-11-18 20:07:53,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842487663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:53,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:53,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:07:53,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267096355] [2022-11-18 20:07:53,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:53,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:53,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:07:53,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:07:53,749 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 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 20:07:53,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:53,978 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-11-18 20:07:53,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2022-11-18 20:07:53,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:07:53,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 21 transitions. [2022-11-18 20:07:53,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 20:07:53,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 20:07:53,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2022-11-18 20:07:53,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:53,980 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-18 20:07:53,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2022-11-18 20:07:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-11-18 20:07:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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 20:07:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-18 20:07:53,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-18 20:07:53,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:07:53,992 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-18 20:07:53,992 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:07:53,993 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2022-11-18 20:07:53,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:07:53,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:07:53,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:07:53,994 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:07:53,994 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:07:53,995 INFO L748 eck$LassoCheckResult]: Stem: 367#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 368#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet10#1, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~nondet15#1, main_#t~post14#1, main_~i~0#1, main_#t~nondet17#1, main_#t~post16#1, main_~i~1#1, main_#t~ret18#1, main_~length1~0#1, main_~length2~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;main_~length1~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;main_~length2~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 374#L559 assume !(main_~length1~0#1 < 1); 380#L559-2 assume !(main_~length2~0#1 < 1); 381#L562-1 call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;main_~i~0#1 := 0; 375#L567-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet15#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet15#1; 376#L567-2 main_#t~post14#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post14#1;havoc main_#t~post14#1; 377#L567-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 378#L567-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);main_~i~1#1 := 0; 382#L572-3 assume !!(main_~i~1#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet17#1, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + main_~i~1#1, 1);havoc main_#t~nondet17#1; 369#L572-2 main_#t~post16#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post16#1;havoc main_#t~post16#1; 370#L572-3 assume !(main_~i~1#1 < main_~length2~0#1 - 1); 379#L572-4 call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcmp } true;cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset, cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc cstrcmp_#res#1;havoc cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset, cstrcmp_#t~mem6#1, cstrcmp_#t~mem3#1, cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset, cstrcmp_#t~mem4#1, cstrcmp_#t~mem8#1, cstrcmp_#t~pre7#1.base, cstrcmp_#t~pre7#1.offset, cstrcmp_#t~mem9#1, cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#in~s1#1.base, cstrcmp_#in~s1#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#in~s2#1.base, cstrcmp_#in~s2#1.offset; 371#L551-3 [2022-11-18 20:07:53,995 INFO L750 eck$LassoCheckResult]: Loop: 371#L551-3 call cstrcmp_#t~mem3#1 := read~int(cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset, 1);cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset := cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset;cstrcmp_~s2#1.base, cstrcmp_~s2#1.offset := cstrcmp_#t~post2#1.base, 1 + cstrcmp_#t~post2#1.offset;call cstrcmp_#t~mem4#1 := read~int(cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset, 1); 372#L551-1 assume !!(cstrcmp_#t~mem3#1 == cstrcmp_#t~mem4#1);havoc cstrcmp_#t~mem3#1;havoc cstrcmp_#t~post2#1.base, cstrcmp_#t~post2#1.offset;havoc cstrcmp_#t~mem4#1;cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset := cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset;cstrcmp_~s1#1.base, cstrcmp_~s1#1.offset := cstrcmp_#t~post5#1.base, 1 + cstrcmp_#t~post5#1.offset;call cstrcmp_#t~mem6#1 := read~int(cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset, 1); 373#L552 assume !(0 == cstrcmp_#t~mem6#1);havoc cstrcmp_#t~post5#1.base, cstrcmp_#t~post5#1.offset;havoc cstrcmp_#t~mem6#1; 371#L551-3 [2022-11-18 20:07:53,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2022-11-18 20:07:53,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:53,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946493351] [2022-11-18 20:07:53,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:53,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:54,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:54,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:54,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 3 times [2022-11-18 20:07:54,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:54,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629768390] [2022-11-18 20:07:54,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:54,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:54,040 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:54,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:54,047 INFO L85 PathProgramCache]: Analyzing trace with hash -718433093, now seen corresponding path program 1 times [2022-11-18 20:07:54,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:54,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054396426] [2022-11-18 20:07:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:54,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:54,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:07:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:07:54,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:07:55,565 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:07:55,565 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:07:55,565 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:07:55,565 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:07:55,565 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:07:55,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:55,566 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:07:55,566 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:07:55,566 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-2.i_Iteration5_Lasso [2022-11-18 20:07:55,566 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:07:55,566 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:07:55,572 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 20:07:55,579 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 20:07:55,582 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 20:07:55,586 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 20:07:55,591 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 20:07:55,594 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 20:07:55,597 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 20:07:56,810 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 20:07:56,814 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 20:07:56,818 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 20:07:56,821 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 20:07:56,824 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 20:07:56,827 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 20:07:56,830 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 20:07:56,833 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 20:07:56,840 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 20:07:56,843 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 20:07:56,847 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 20:07:56,857 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 20:07:56,861 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 20:07:56,864 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 20:07:56,868 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 20:07:56,870 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 20:07:56,873 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 20:07:56,877 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 20:07:56,879 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 20:07:58,040 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:07:58,040 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:07:58,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,046 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:07:58,053 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 20:07:58,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:58,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:58,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,085 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:07:58,092 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 20:07:58,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:58,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:58,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:58,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,126 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,141 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 20:07:58,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:07:58,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:58,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:58,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:58,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,169 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:07:58,174 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 20:07:58,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:58,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:58,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:58,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,194 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 20:07:58,197 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 20:07:58,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:58,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:58,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:58,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,217 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 20:07:58,220 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 20:07:58,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:07:58,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:07:58,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:07:58,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,251 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 20:07:58,256 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 20:07:58,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:58,271 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:58,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,318 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 20:07:58,332 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 20:07:58,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,348 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-18 20:07:58,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,368 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-18 20:07:58,369 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-18 20:07:58,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,415 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,424 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 20:07:58,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 20:07:58,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:58,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:58,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:07:58,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,470 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,475 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 20:07:58,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 20:07:58,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:07:58,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:07:58,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:07:58,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:07:58,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:07:58,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:07:58,559 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:07:58,692 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2022-11-18 20:07:58,692 INFO L444 ModelExtractionUtils]: 17 out of 52 variables were initially zero. Simplification set additionally 32 variables to zero. [2022-11-18 20:07:58,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:07:58,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:58,694 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:07:58,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:07:58,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 20:07:58,737 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:07:58,737 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:07:58,737 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s2#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_3) = -1*ULTIMATE.start_cstrcmp_~s2#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_3 Supporting invariants [] [2022-11-18 20:07:58,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:58,886 INFO L156 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2022-11-18 20:07:58,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:58,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:07:58,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:07:59,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:59,082 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 20:07:59,083 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 20:07:59,083 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 20:07:59,128 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) Result 19 states and 23 transitions. Complement of second has 5 states. [2022-11-18 20:07:59,129 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 20:07:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 20:07:59,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-11-18 20:07:59,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-18 20:07:59,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:59,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 20:07:59,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:59,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-18 20:07:59,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:07:59,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2022-11-18 20:07:59,136 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:07:59,137 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2022-11-18 20:07:59,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:07:59,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:07:59,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:07:59,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:07:59,138 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:07:59,138 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:07:59,138 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:07:59,138 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:07:59,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:07:59,138 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:07:59,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:07:59,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:07:59 BoogieIcfgContainer [2022-11-18 20:07:59,155 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:07:59,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:07:59,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:07:59,156 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:07:59,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:07:46" (3/4) ... [2022-11-18 20:07:59,159 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:07:59,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:07:59,160 INFO L158 Benchmark]: Toolchain (without parser) took 14406.63ms. Allocated memory was 125.8MB in the beginning and 209.7MB in the end (delta: 83.9MB). Free memory was 87.9MB in the beginning and 76.1MB in the end (delta: 11.7MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2022-11-18 20:07:59,161 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:07:59,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.18ms. Allocated memory is still 125.8MB. Free memory was 87.7MB in the beginning and 95.1MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:07:59,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.28ms. Allocated memory is still 125.8MB. Free memory was 95.1MB in the beginning and 93.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:07:59,162 INFO L158 Benchmark]: Boogie Preprocessor took 33.88ms. Allocated memory is still 125.8MB. Free memory was 93.5MB in the beginning and 92.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:07:59,163 INFO L158 Benchmark]: RCFGBuilder took 529.99ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 79.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:07:59,163 INFO L158 Benchmark]: BuchiAutomizer took 13047.73ms. Allocated memory was 125.8MB in the beginning and 209.7MB in the end (delta: 83.9MB). Free memory was 79.0MB in the beginning and 76.1MB in the end (delta: 2.9MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. [2022-11-18 20:07:59,163 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 209.7MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:07:59,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.18ms. Allocated memory is still 125.8MB. Free memory was 87.7MB in the beginning and 95.1MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.28ms. Allocated memory is still 125.8MB. Free memory was 95.1MB in the beginning and 93.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.88ms. Allocated memory is still 125.8MB. Free memory was 93.5MB in the beginning and 92.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.99ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 79.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 13047.73ms. Allocated memory was 125.8MB in the beginning and 209.7MB in the end (delta: 83.9MB). Free memory was 79.0MB in the beginning and 76.1MB in the end (delta: 2.9MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 209.7MB. Free memory is still 76.1MB. 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function length2 + -1 * i and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s2 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 11.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 182 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 66 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital174 mio100 ax111 hnf100 lsp85 ukn89 mio100 lsp56 div174 bol100 ite100 ukn100 eq160 hnf92 smp72 dnf100 smp100 tf100 neg98 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 86ms VariablesStem: 6 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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 20:07:59,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:07:59,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1e5826-5fff-46d2-84bb-7869b2da9ad8/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