./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a --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 79a0aa7f506a25068fe5f831c3bf60ccd6ee82a9d4cedb42c580c3cecf620506 --- 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-b5237d8 [2022-11-21 09:10:12,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:10:12,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:10:12,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:10:12,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:10:12,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:10:12,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:10:12,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:10:12,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:10:12,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:10:12,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:10:12,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:10:12,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:10:12,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:10:12,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:10:12,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:10:12,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:10:12,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:10:12,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:10:12,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:10:12,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:10:12,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:10:12,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:10:12,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:10:12,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:10:12,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:10:12,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:10:12,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:10:12,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:10:12,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:10:12,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:10:12,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:10:12,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:10:12,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:10:12,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:10:12,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:10:12,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:10:12,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:10:12,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:10:12,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:10:12,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:10:12,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 09:10:12,275 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:10:12,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:10:12,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:10:12,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:10:12,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:10:12,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:10:12,278 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:10:12,278 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 09:10:12,278 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 09:10:12,278 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 09:10:12,279 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 09:10:12,280 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 09:10:12,280 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 09:10:12,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:10:12,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:10:12,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:10:12,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:10:12,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 09:10:12,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 09:10:12,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 09:10:12,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:10:12,282 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 09:10:12,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:10:12,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 09:10:12,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:10:12,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:10:12,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:10:12,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:10:12,285 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 09:10:12,285 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_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79a0aa7f506a25068fe5f831c3bf60ccd6ee82a9d4cedb42c580c3cecf620506 [2022-11-21 09:10:12,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:10:12,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:10:12,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:10:12,627 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:10:12,628 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:10:12,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i [2022-11-21 09:10:15,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:10:15,999 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:10:15,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/sv-benchmarks/c/termination-memory-alloca/substring-alloca-1.i [2022-11-21 09:10:16,011 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/data/6501acb49/14243655c5c249638601c29fb58beda3/FLAGa0c50118a [2022-11-21 09:10:16,025 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/data/6501acb49/14243655c5c249638601c29fb58beda3 [2022-11-21 09:10:16,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:10:16,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:10:16,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:10:16,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:10:16,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:10:16,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0dfdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16, skipping insertion in model container [2022-11-21 09:10:16,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:10:16,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:10:16,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:10:16,446 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:10:16,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:10:16,534 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:10:16,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16 WrapperNode [2022-11-21 09:10:16,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:10:16,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:10:16,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:10:16,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:10:16,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,598 INFO L138 Inliner]: procedures = 111, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-11-21 09:10:16,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:10:16,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:10:16,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:10:16,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:10:16,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:10:16,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:10:16,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:10:16,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:10:16,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (1/1) ... [2022-11-21 09:10:16,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:16,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:16,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:16,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 09:10:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:10:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:10:16,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:10:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:10:16,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:10:16,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:10:16,864 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:10:16,866 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:10:17,008 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:10:17,017 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:10:17,017 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 09:10:17,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:17 BoogieIcfgContainer [2022-11-21 09:10:17,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:10:17,022 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 09:10:17,022 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 09:10:17,043 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 09:10:17,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:10:17,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:10:16" (1/3) ... [2022-11-21 09:10:17,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ace7033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:10:17, skipping insertion in model container [2022-11-21 09:10:17,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:10:17,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:10:16" (2/3) ... [2022-11-21 09:10:17,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ace7033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:10:17, skipping insertion in model container [2022-11-21 09:10:17,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:10:17,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:17" (3/3) ... [2022-11-21 09:10:17,047 INFO L332 chiAutomizerObserver]: Analyzing ICFG substring-alloca-1.i [2022-11-21 09:10:17,116 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 09:10:17,116 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 09:10:17,117 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 09:10:17,117 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 09:10:17,117 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 09:10:17,117 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 09:10:17,117 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 09:10:17,117 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 09:10:17,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:17,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-21 09:10:17,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:10:17,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:10:17,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 09:10:17,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-21 09:10:17,148 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 09:10:17,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:17,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-21 09:10:17,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:10:17,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:10:17,151 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 09:10:17,152 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-21 09:10:17,160 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#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~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 4#L565true assume !(main_~length1~0#1 < 1); 13#L565-2true assume !(main_~length2~0#1 < 1); 17#L568-1true call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_substring } true;substring_#in~s#1.base, substring_#in~s#1.offset, substring_#in~t#1.base, substring_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc substring_#res#1;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset, substring_#t~post8#1.base, substring_#t~post8#1.offset, substring_#t~mem3#1, substring_#t~mem4#1, substring_#t~mem5#1, substring_#t~short6#1, substring_#t~mem9#1, substring_#t~post10#1.base, substring_#t~post10#1.offset, substring_~ps2~0#1.base, substring_~ps2~0#1.offset, substring_~pt~0#1.base, substring_~pt~0#1.offset, substring_#t~mem2#1, substring_~s#1.base, substring_~s#1.offset, substring_~t#1.base, substring_~t#1.offset, substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~s#1.base, substring_~s#1.offset := substring_#in~s#1.base, substring_#in~s#1.offset;substring_~t#1.base, substring_~t#1.offset := substring_#in~t#1.base, substring_#in~t#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_~s#1.base, substring_~s#1.offset; 9#L550-3true [2022-11-21 09:10:17,160 INFO L750 eck$LassoCheckResult]: Loop: 9#L550-3true call substring_#t~mem2#1 := read~int(substring_~ps~0#1.base, substring_~ps~0#1.offset, 1); 16#L550-1true assume !!(0 != substring_#t~mem2#1);havoc substring_#t~mem2#1;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_~t#1.base, substring_~t#1.offset; 11#L553-5true assume !true; 2#L553-6true call substring_#t~mem9#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1); 15#L557true assume !(0 == substring_#t~mem9#1);havoc substring_#t~mem9#1;substring_#t~post10#1.base, substring_#t~post10#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_#t~post10#1.base, 1 + substring_#t~post10#1.offset;havoc substring_#t~post10#1.base, substring_#t~post10#1.offset; 9#L550-3true [2022-11-21 09:10:17,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:17,166 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2022-11-21 09:10:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:17,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24759033] [2022-11-21 09:10:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:17,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:17,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:17,401 INFO L85 PathProgramCache]: Analyzing trace with hash 47887114, now seen corresponding path program 1 times [2022-11-21 09:10:17,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:17,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128398615] [2022-11-21 09:10:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:17,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:17,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:17,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:17,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128398615] [2022-11-21 09:10:17,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128398615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:17,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:17,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:10:17,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18308000] [2022-11-21 09:10:17,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:17,502 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 09:10:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 09:10:17,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 09:10:17,559 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-21 09:10:17,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:17,567 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2022-11-21 09:10:17,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2022-11-21 09:10:17,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-21 09:10:17,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 16 transitions. [2022-11-21 09:10:17,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-21 09:10:17,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-21 09:10:17,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2022-11-21 09:10:17,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:17,579 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-21 09:10:17,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2022-11-21 09:10:17,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-21 09:10:17,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2022-11-21 09:10:17,607 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-21 09:10:17,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 09:10:17,612 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2022-11-21 09:10:17,612 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 09:10:17,612 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2022-11-21 09:10:17,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-21 09:10:17,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:10:17,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:10:17,614 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-21 09:10:17,614 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:17,615 INFO L748 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 47#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#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~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 44#L565 assume !(main_~length1~0#1 < 1); 45#L565-2 assume !(main_~length2~0#1 < 1); 48#L568-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_substring } true;substring_#in~s#1.base, substring_#in~s#1.offset, substring_#in~t#1.base, substring_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc substring_#res#1;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset, substring_#t~post8#1.base, substring_#t~post8#1.offset, substring_#t~mem3#1, substring_#t~mem4#1, substring_#t~mem5#1, substring_#t~short6#1, substring_#t~mem9#1, substring_#t~post10#1.base, substring_#t~post10#1.offset, substring_~ps2~0#1.base, substring_~ps2~0#1.offset, substring_~pt~0#1.base, substring_~pt~0#1.offset, substring_#t~mem2#1, substring_~s#1.base, substring_~s#1.offset, substring_~t#1.base, substring_~t#1.offset, substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~s#1.base, substring_~s#1.offset := substring_#in~s#1.base, substring_#in~s#1.offset;substring_~t#1.base, substring_~t#1.offset := substring_#in~t#1.base, substring_#in~t#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_~s#1.base, substring_~s#1.offset; 51#L550-3 [2022-11-21 09:10:17,615 INFO L750 eck$LassoCheckResult]: Loop: 51#L550-3 call substring_#t~mem2#1 := read~int(substring_~ps~0#1.base, substring_~ps~0#1.offset, 1); 52#L550-1 assume !!(0 != substring_#t~mem2#1);havoc substring_#t~mem2#1;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_~t#1.base, substring_~t#1.offset; 50#L553-5 call substring_#t~mem3#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);substring_#t~short6#1 := 0 != substring_#t~mem3#1; 53#L553-1 assume substring_#t~short6#1;call substring_#t~mem4#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);call substring_#t~mem5#1 := read~int(substring_~ps2~0#1.base, substring_~ps2~0#1.offset, 1);substring_#t~short6#1 := substring_#t~mem4#1 == substring_#t~mem5#1; 49#L553-3 assume !substring_#t~short6#1;havoc substring_#t~mem3#1;havoc substring_#t~mem4#1;havoc substring_#t~mem5#1;havoc substring_#t~short6#1; 42#L553-6 call substring_#t~mem9#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1); 43#L557 assume !(0 == substring_#t~mem9#1);havoc substring_#t~mem9#1;substring_#t~post10#1.base, substring_#t~post10#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_#t~post10#1.base, 1 + substring_#t~post10#1.offset;havoc substring_#t~post10#1.base, substring_#t~post10#1.offset; 51#L550-3 [2022-11-21 09:10:17,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:17,616 INFO L85 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2022-11-21 09:10:17,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:17,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275741119] [2022-11-21 09:10:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:17,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:17,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:17,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1237496093, now seen corresponding path program 1 times [2022-11-21 09:10:17,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:17,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939039648] [2022-11-21 09:10:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:17,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:17,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:17,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1302992386, now seen corresponding path program 1 times [2022-11-21 09:10:17,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:17,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802828304] [2022-11-21 09:10:17,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:17,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:17,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:19,056 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 09:10:19,057 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 09:10:19,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 09:10:19,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 09:10:19,058 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 09:10:19,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:19,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 09:10:19,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 09:10:19,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration2_Lasso [2022-11-21 09:10:19,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 09:10:19,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 09:10:19,092 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,106 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,118 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,121 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,124 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,143 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,146 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,148 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,151 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,162 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,165 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,170 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,173 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,177 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,959 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:19,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:20,778 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 09:10:20,786 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 09:10:20,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:20,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:20,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:20,813 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 [2022-11-21 09:10:20,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 09:10:20,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:20,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:20,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:20,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:20,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:20,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:20,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:20,840 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:20,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:20,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:20,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:20,864 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 [2022-11-21 09:10:20,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:20,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:20,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:20,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:20,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:20,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:20,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:20,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 09:10:20,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:20,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:20,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:20,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:20,902 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:20,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 09:10:20,907 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 [2022-11-21 09:10:20,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:20,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:20,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:20,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:20,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:20,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:20,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:20,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:20,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:20,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:20,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:20,960 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 [2022-11-21 09:10:20,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:20,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:20,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:20,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:20,976 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:20,976 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:20,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 09:10:20,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,004 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,008 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 [2022-11-21 09:10:21,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 09:10:21,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,041 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,052 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 [2022-11-21 09:10:21,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 09:10:21,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,091 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,100 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 [2022-11-21 09:10:21,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 09:10:21,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:21,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:21,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,149 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-21 09:10:21,153 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 [2022-11-21 09:10:21,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,172 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-21 09:10:21,177 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 [2022-11-21 09:10:21,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:21,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:21,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,225 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,230 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 [2022-11-21 09:10:21,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-21 09:10:21,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,271 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,284 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 [2022-11-21 09:10:21,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-21 09:10:21,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,322 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,332 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 [2022-11-21 09:10:21,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-21 09:10:21,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,364 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-21 09:10:21,372 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 [2022-11-21 09:10:21,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,399 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-21 09:10:21,402 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 [2022-11-21 09:10:21,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,428 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,440 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 [2022-11-21 09:10:21,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:21,455 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:21,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-21 09:10:21,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,488 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-21 09:10:21,490 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 [2022-11-21 09:10:21,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,525 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,529 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 [2022-11-21 09:10:21,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-21 09:10:21,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,560 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,572 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 [2022-11-21 09:10:21,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-21 09:10:21,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,599 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-21 09:10:21,603 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 [2022-11-21 09:10:21,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:21,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,636 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,648 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 [2022-11-21 09:10:21,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-21 09:10:21,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:21,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:21,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,686 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,691 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 [2022-11-21 09:10:21,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:21,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,704 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2022-11-21 09:10:21,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-21 09:10:21,715 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2022-11-21 09:10:21,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:21,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:21,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:21,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,734 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-21 09:10:21,737 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 [2022-11-21 09:10:21,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:21,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:21,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:21,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:21,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:21,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:21,780 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 09:10:21,885 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2022-11-21 09:10:21,885 INFO L444 ModelExtractionUtils]: 21 out of 34 variables were initially zero. Simplification set additionally 10 variables to zero. [2022-11-21 09:10:21,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:21,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:21,929 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:21,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-21 09:10:21,987 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 09:10:22,021 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-21 09:10:22,021 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 09:10:22,022 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_1, ULTIMATE.start_substring_~ps~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13#1.base)_1 - 1*ULTIMATE.start_substring_~ps~0#1.offset Supporting invariants [] [2022-11-21 09:10:22,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:22,078 INFO L156 tatePredicateManager]: 11 out of 13 supporting invariants were superfluous and have been removed [2022-11-21 09:10:22,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:22,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 09:10:22,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 09:10:22,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:22,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:22,343 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 [2022-11-21 09:10:22,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-11-21 09:10:22,409 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 26 transitions. Complement of second has 4 states. [2022-11-21 09:10:22,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-21 09:10:22,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2022-11-21 09:10:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2022-11-21 09:10:22,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 5 letters. Loop has 7 letters. [2022-11-21 09:10:22,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:22,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 12 letters. Loop has 7 letters. [2022-11-21 09:10:22,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:22,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 5 letters. Loop has 14 letters. [2022-11-21 09:10:22,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:22,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2022-11-21 09:10:22,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 09:10:22,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 24 transitions. [2022-11-21 09:10:22,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-21 09:10:22,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-21 09:10:22,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2022-11-21 09:10:22,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 09:10:22,422 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 24 transitions. [2022-11-21 09:10:22,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2022-11-21 09:10:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-21 09:10:22,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2022-11-21 09:10:22,427 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 24 transitions. [2022-11-21 09:10:22,427 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2022-11-21 09:10:22,428 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 09:10:22,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2022-11-21 09:10:22,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 09:10:22,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:10:22,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:10:22,431 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:22,431 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 09:10:22,431 INFO L748 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 190#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#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~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 187#L565 assume !(main_~length1~0#1 < 1); 188#L565-2 assume !(main_~length2~0#1 < 1); 191#L568-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_substring } true;substring_#in~s#1.base, substring_#in~s#1.offset, substring_#in~t#1.base, substring_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc substring_#res#1;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset, substring_#t~post8#1.base, substring_#t~post8#1.offset, substring_#t~mem3#1, substring_#t~mem4#1, substring_#t~mem5#1, substring_#t~short6#1, substring_#t~mem9#1, substring_#t~post10#1.base, substring_#t~post10#1.offset, substring_~ps2~0#1.base, substring_~ps2~0#1.offset, substring_~pt~0#1.base, substring_~pt~0#1.offset, substring_#t~mem2#1, substring_~s#1.base, substring_~s#1.offset, substring_~t#1.base, substring_~t#1.offset, substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~s#1.base, substring_~s#1.offset := substring_#in~s#1.base, substring_#in~s#1.offset;substring_~t#1.base, substring_~t#1.offset := substring_#in~t#1.base, substring_#in~t#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_~s#1.base, substring_~s#1.offset; 197#L550-3 call substring_#t~mem2#1 := read~int(substring_~ps~0#1.base, substring_~ps~0#1.offset, 1); 199#L550-1 assume !!(0 != substring_#t~mem2#1);havoc substring_#t~mem2#1;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_~t#1.base, substring_~t#1.offset; 193#L553-5 [2022-11-21 09:10:22,432 INFO L750 eck$LassoCheckResult]: Loop: 193#L553-5 call substring_#t~mem3#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);substring_#t~short6#1 := 0 != substring_#t~mem3#1; 200#L553-1 assume substring_#t~short6#1;call substring_#t~mem4#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);call substring_#t~mem5#1 := read~int(substring_~ps2~0#1.base, substring_~ps2~0#1.offset, 1);substring_#t~short6#1 := substring_#t~mem4#1 == substring_#t~mem5#1; 192#L553-3 assume !!substring_#t~short6#1;havoc substring_#t~mem3#1;havoc substring_#t~mem4#1;havoc substring_#t~mem5#1;havoc substring_#t~short6#1;substring_#t~post7#1.base, substring_#t~post7#1.offset := substring_~pt~0#1.base, substring_~pt~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_#t~post7#1.base, 1 + substring_#t~post7#1.offset;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset;substring_#t~post8#1.base, substring_#t~post8#1.offset := substring_~ps2~0#1.base, substring_~ps2~0#1.offset;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_#t~post8#1.base, 1 + substring_#t~post8#1.offset;havoc substring_#t~post8#1.base, substring_#t~post8#1.offset; 193#L553-5 [2022-11-21 09:10:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1806935627, now seen corresponding path program 1 times [2022-11-21 09:10:22,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:22,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653956390] [2022-11-21 09:10:22,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:22,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:22,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:22,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 1 times [2022-11-21 09:10:22,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:22,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037246442] [2022-11-21 09:10:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:22,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:22,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:22,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:22,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:22,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1594173083, now seen corresponding path program 1 times [2022-11-21 09:10:22,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:22,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333690982] [2022-11-21 09:10:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:22,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:22,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:22,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:23,752 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 09:10:23,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 09:10:23,753 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 09:10:23,753 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 09:10:23,753 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 09:10:23,753 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:23,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 09:10:23,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 09:10:23,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration3_Lasso [2022-11-21 09:10:23,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 09:10:23,754 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 09:10:23,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,697 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,705 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,709 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,711 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,713 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,719 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,725 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,728 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,731 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,736 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,745 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,748 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,754 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,761 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:24,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:25,648 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 09:10:25,648 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 09:10:25,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:25,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:25,659 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:25,669 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 [2022-11-21 09:10:25,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:25,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:25,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:25,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:25,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-21 09:10:25,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:25,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:25,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:25,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:25,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:25,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:25,711 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:25,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-21 09:10:25,715 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 [2022-11-21 09:10:25,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:25,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:25,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:25,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:25,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:25,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:25,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:25,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-11-21 09:10:25,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:25,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:25,740 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:25,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-21 09:10:25,743 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 [2022-11-21 09:10:25,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:25,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:25,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:25,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:25,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:25,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:25,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:25,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-21 09:10:25,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:25,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:25,772 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:25,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-21 09:10:25,775 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 [2022-11-21 09:10:25,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:25,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:25,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:25,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:25,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:25,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:25,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 09:10:25,947 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2022-11-21 09:10:25,947 INFO L444 ModelExtractionUtils]: 34 out of 58 variables were initially zero. Simplification set additionally 21 variables to zero. [2022-11-21 09:10:25,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:25,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:25,951 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:25,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-21 09:10:25,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 09:10:25,966 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-21 09:10:25,966 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 09:10:25,966 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps2~0#1.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_2) = -1*ULTIMATE.start_substring_~ps2~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_2 Supporting invariants [] [2022-11-21 09:10:25,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:26,089 INFO L156 tatePredicateManager]: 23 out of 25 supporting invariants were superfluous and have been removed [2022-11-21 09:10:26,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:26,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-21 09:10:26,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:26,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 09:10:26,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:26,242 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 [2022-11-21 09:10:26,243 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:26,291 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 54 transitions. Complement of second has 6 states. [2022-11-21 09:10:26,292 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 [2022-11-21 09:10:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:10:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-21 09:10:26,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-21 09:10:26,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:26,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-21 09:10:26,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:26,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-21 09:10:26,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:26,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 54 transitions. [2022-11-21 09:10:26,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 09:10:26,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 28 states and 38 transitions. [2022-11-21 09:10:26,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-21 09:10:26,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-21 09:10:26,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 38 transitions. [2022-11-21 09:10:26,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 09:10:26,297 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 38 transitions. [2022-11-21 09:10:26,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 38 transitions. [2022-11-21 09:10:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2022-11-21 09:10:26,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 22 states have internal predecessors, (32), 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) [2022-11-21 09:10:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2022-11-21 09:10:26,300 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2022-11-21 09:10:26,300 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2022-11-21 09:10:26,300 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 09:10:26,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 32 transitions. [2022-11-21 09:10:26,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 09:10:26,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:10:26,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:10:26,301 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:26,301 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 09:10:26,302 INFO L748 eck$LassoCheckResult]: Stem: 404#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 405#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#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~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 402#L565 assume !(main_~length1~0#1 < 1); 403#L565-2 assume !(main_~length2~0#1 < 1); 406#L568-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_substring } true;substring_#in~s#1.base, substring_#in~s#1.offset, substring_#in~t#1.base, substring_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc substring_#res#1;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset, substring_#t~post8#1.base, substring_#t~post8#1.offset, substring_#t~mem3#1, substring_#t~mem4#1, substring_#t~mem5#1, substring_#t~short6#1, substring_#t~mem9#1, substring_#t~post10#1.base, substring_#t~post10#1.offset, substring_~ps2~0#1.base, substring_~ps2~0#1.offset, substring_~pt~0#1.base, substring_~pt~0#1.offset, substring_#t~mem2#1, substring_~s#1.base, substring_~s#1.offset, substring_~t#1.base, substring_~t#1.offset, substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~s#1.base, substring_~s#1.offset := substring_#in~s#1.base, substring_#in~s#1.offset;substring_~t#1.base, substring_~t#1.offset := substring_#in~t#1.base, substring_#in~t#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_~s#1.base, substring_~s#1.offset; 411#L550-3 call substring_#t~mem2#1 := read~int(substring_~ps~0#1.base, substring_~ps~0#1.offset, 1); 412#L550-1 assume !!(0 != substring_#t~mem2#1);havoc substring_#t~mem2#1;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_~t#1.base, substring_~t#1.offset; 420#L553-5 call substring_#t~mem3#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);substring_#t~short6#1 := 0 != substring_#t~mem3#1; 418#L553-1 assume !substring_#t~short6#1; 409#L553-3 assume !substring_#t~short6#1;havoc substring_#t~mem3#1;havoc substring_#t~mem4#1;havoc substring_#t~mem5#1;havoc substring_#t~short6#1; 400#L553-6 call substring_#t~mem9#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1); 401#L557 assume !(0 == substring_#t~mem9#1);havoc substring_#t~mem9#1;substring_#t~post10#1.base, substring_#t~post10#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_#t~post10#1.base, 1 + substring_#t~post10#1.offset;havoc substring_#t~post10#1.base, substring_#t~post10#1.offset; 410#L550-3 call substring_#t~mem2#1 := read~int(substring_~ps~0#1.base, substring_~ps~0#1.offset, 1); 414#L550-1 assume !!(0 != substring_#t~mem2#1);havoc substring_#t~mem2#1;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_~t#1.base, substring_~t#1.offset; 408#L553-5 [2022-11-21 09:10:26,302 INFO L750 eck$LassoCheckResult]: Loop: 408#L553-5 call substring_#t~mem3#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);substring_#t~short6#1 := 0 != substring_#t~mem3#1; 416#L553-1 assume substring_#t~short6#1;call substring_#t~mem4#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);call substring_#t~mem5#1 := read~int(substring_~ps2~0#1.base, substring_~ps2~0#1.offset, 1);substring_#t~short6#1 := substring_#t~mem4#1 == substring_#t~mem5#1; 407#L553-3 assume !!substring_#t~short6#1;havoc substring_#t~mem3#1;havoc substring_#t~mem4#1;havoc substring_#t~mem5#1;havoc substring_#t~short6#1;substring_#t~post7#1.base, substring_#t~post7#1.offset := substring_~pt~0#1.base, substring_~pt~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_#t~post7#1.base, 1 + substring_#t~post7#1.offset;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset;substring_#t~post8#1.base, substring_#t~post8#1.offset := substring_~ps2~0#1.base, substring_~ps2~0#1.offset;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_#t~post8#1.base, 1 + substring_#t~post8#1.offset;havoc substring_#t~post8#1.base, substring_#t~post8#1.offset; 408#L553-5 [2022-11-21 09:10:26,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:26,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2012026433, now seen corresponding path program 1 times [2022-11-21 09:10:26,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:26,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490341787] [2022-11-21 09:10:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:26,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:26,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:26,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490341787] [2022-11-21 09:10:26,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490341787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:26,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:26,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:10:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158396547] [2022-11-21 09:10:26,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:26,405 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-21 09:10:26,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:26,405 INFO L85 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 2 times [2022-11-21 09:10:26,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:26,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143918423] [2022-11-21 09:10:26,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:26,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:26,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:26,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:26,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:10:26,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:10:26,575 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2022-11-21 09:10:26,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:26,613 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2022-11-21 09:10:26,613 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2022-11-21 09:10:26,614 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-21 09:10:26,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 26 states and 34 transitions. [2022-11-21 09:10:26,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-21 09:10:26,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-21 09:10:26,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2022-11-21 09:10:26,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-21 09:10:26,615 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-11-21 09:10:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2022-11-21 09:10:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-21 09:10:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 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) [2022-11-21 09:10:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2022-11-21 09:10:26,617 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2022-11-21 09:10:26,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:10:26,619 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2022-11-21 09:10:26,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-21 09:10:26,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions. [2022-11-21 09:10:26,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-21 09:10:26,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:10:26,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:10:26,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:26,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-21 09:10:26,621 INFO L748 eck$LassoCheckResult]: Stem: 466#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 467#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet11#1, main_#t~nondet12#1, main_#t~malloc13#1.base, main_#t~malloc13#1.offset, main_#t~malloc14#1.base, main_#t~malloc14#1.offset, main_#t~ret15#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~nondet11#1;havoc main_#t~nondet11#1;main_~length2~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 464#L565 assume !(main_~length1~0#1 < 1); 465#L565-2 assume !(main_~length2~0#1 < 1); 468#L568-1 call main_#t~malloc13#1.base, main_#t~malloc13#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 18446744073709551616);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc13#1.base, main_#t~malloc13#1.offset;call main_#t~malloc14#1.base, main_#t~malloc14#1.offset := #Ultimate.allocOnStack(main_~length2~0#1 % 18446744073709551616);main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset := main_#t~malloc14#1.base, main_#t~malloc14#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);call write~int(0, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_substring } true;substring_#in~s#1.base, substring_#in~s#1.offset, substring_#in~t#1.base, substring_#in~t#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, main_~nondetString2~0#1.base, main_~nondetString2~0#1.offset;havoc substring_#res#1;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset, substring_#t~post8#1.base, substring_#t~post8#1.offset, substring_#t~mem3#1, substring_#t~mem4#1, substring_#t~mem5#1, substring_#t~short6#1, substring_#t~mem9#1, substring_#t~post10#1.base, substring_#t~post10#1.offset, substring_~ps2~0#1.base, substring_~ps2~0#1.offset, substring_~pt~0#1.base, substring_~pt~0#1.offset, substring_#t~mem2#1, substring_~s#1.base, substring_~s#1.offset, substring_~t#1.base, substring_~t#1.offset, substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~s#1.base, substring_~s#1.offset := substring_#in~s#1.base, substring_#in~s#1.offset;substring_~t#1.base, substring_~t#1.offset := substring_#in~t#1.base, substring_#in~t#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_~s#1.base, substring_~s#1.offset; 474#L550-3 call substring_#t~mem2#1 := read~int(substring_~ps~0#1.base, substring_~ps~0#1.offset, 1); 475#L550-1 assume !!(0 != substring_#t~mem2#1);havoc substring_#t~mem2#1;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_~t#1.base, substring_~t#1.offset; 472#L553-5 call substring_#t~mem3#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);substring_#t~short6#1 := 0 != substring_#t~mem3#1; 479#L553-1 assume substring_#t~short6#1;call substring_#t~mem4#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);call substring_#t~mem5#1 := read~int(substring_~ps2~0#1.base, substring_~ps2~0#1.offset, 1);substring_#t~short6#1 := substring_#t~mem4#1 == substring_#t~mem5#1; 481#L553-3 assume !substring_#t~short6#1;havoc substring_#t~mem3#1;havoc substring_#t~mem4#1;havoc substring_#t~mem5#1;havoc substring_#t~short6#1; 462#L553-6 call substring_#t~mem9#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1); 463#L557 assume !(0 == substring_#t~mem9#1);havoc substring_#t~mem9#1;substring_#t~post10#1.base, substring_#t~post10#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~ps~0#1.base, substring_~ps~0#1.offset := substring_#t~post10#1.base, 1 + substring_#t~post10#1.offset;havoc substring_#t~post10#1.base, substring_#t~post10#1.offset; 473#L550-3 call substring_#t~mem2#1 := read~int(substring_~ps~0#1.base, substring_~ps~0#1.offset, 1); 477#L550-1 assume !!(0 != substring_#t~mem2#1);havoc substring_#t~mem2#1;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_~ps~0#1.base, substring_~ps~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_~t#1.base, substring_~t#1.offset; 470#L553-5 [2022-11-21 09:10:26,621 INFO L750 eck$LassoCheckResult]: Loop: 470#L553-5 call substring_#t~mem3#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);substring_#t~short6#1 := 0 != substring_#t~mem3#1; 478#L553-1 assume substring_#t~short6#1;call substring_#t~mem4#1 := read~int(substring_~pt~0#1.base, substring_~pt~0#1.offset, 1);call substring_#t~mem5#1 := read~int(substring_~ps2~0#1.base, substring_~ps2~0#1.offset, 1);substring_#t~short6#1 := substring_#t~mem4#1 == substring_#t~mem5#1; 469#L553-3 assume !!substring_#t~short6#1;havoc substring_#t~mem3#1;havoc substring_#t~mem4#1;havoc substring_#t~mem5#1;havoc substring_#t~short6#1;substring_#t~post7#1.base, substring_#t~post7#1.offset := substring_~pt~0#1.base, substring_~pt~0#1.offset;substring_~pt~0#1.base, substring_~pt~0#1.offset := substring_#t~post7#1.base, 1 + substring_#t~post7#1.offset;havoc substring_#t~post7#1.base, substring_#t~post7#1.offset;substring_#t~post8#1.base, substring_#t~post8#1.offset := substring_~ps2~0#1.base, substring_~ps2~0#1.offset;substring_~ps2~0#1.base, substring_~ps2~0#1.offset := substring_#t~post8#1.base, 1 + substring_#t~post8#1.offset;havoc substring_#t~post8#1.base, substring_#t~post8#1.offset; 470#L553-5 [2022-11-21 09:10:26,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:26,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1954768131, now seen corresponding path program 2 times [2022-11-21 09:10:26,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:26,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878408937] [2022-11-21 09:10:26,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:26,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:26,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:26,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:26,659 INFO L85 PathProgramCache]: Analyzing trace with hash 59685, now seen corresponding path program 3 times [2022-11-21 09:10:26,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:26,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058748126] [2022-11-21 09:10:26,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:26,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:26,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:26,670 INFO L85 PathProgramCache]: Analyzing trace with hash -964145949, now seen corresponding path program 1 times [2022-11-21 09:10:26,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:26,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654124493] [2022-11-21 09:10:26,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:26,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,697 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:10:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:10:26,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:10:28,177 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 09:10:28,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 09:10:28,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 09:10:28,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 09:10:28,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-21 09:10:28,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:28,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 09:10:28,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 09:10:28,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-1.i_Iteration5_Lasso [2022-11-21 09:10:28,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 09:10:28,178 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 09:10:28,182 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:28,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:28,188 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:28,191 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,400 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,407 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,413 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,415 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,423 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,431 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,435 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,445 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:29,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 09:10:30,793 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 09:10:30,793 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-21 09:10:30,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:30,803 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:30,811 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 [2022-11-21 09:10:30,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-21 09:10:30,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:30,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:30,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:30,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:30,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:30,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:30,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:30,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:30,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:30,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:30,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:30,844 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:30,852 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 [2022-11-21 09:10:30,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:30,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:30,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:30,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:30,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-21 09:10:30,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:30,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:30,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:30,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:30,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:30,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:30,893 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:30,898 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 [2022-11-21 09:10:30,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:30,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-21 09:10:30,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:30,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:30,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:30,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-21 09:10:30,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-21 09:10:30,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-21 09:10:30,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:30,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:30,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:30,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:30,944 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:30,948 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 [2022-11-21 09:10:30,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:30,961 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2022-11-21 09:10:30,961 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-21 09:10:30,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:30,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-21 09:10:30,993 INFO L401 nArgumentSynthesizer]: We have 60 Motzkin's Theorem applications. [2022-11-21 09:10:30,993 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-21 09:10:31,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:31,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:31,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:31,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:31,062 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:31,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-21 09:10:31,065 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 [2022-11-21 09:10:31,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:31,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:31,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:31,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:31,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:31,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:31,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:31,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:31,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:31,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:31,104 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:31,116 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 [2022-11-21 09:10:31,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-21 09:10:31,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:31,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:31,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:31,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:31,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:31,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:31,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:31,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:31,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:31,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:31,179 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:31,187 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 [2022-11-21 09:10:31,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:31,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:31,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:31,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:31,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-21 09:10:31,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:31,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:31,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:31,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-11-21 09:10:31,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:31,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:31,226 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:31,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-21 09:10:31,229 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 [2022-11-21 09:10:31,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:31,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:31,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:31,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:31,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:31,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:31,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-21 09:10:31,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-11-21 09:10:31,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:31,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:31,255 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:31,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-21 09:10:31,263 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 [2022-11-21 09:10:31,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-21 09:10:31,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-21 09:10:31,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-21 09:10:31,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-21 09:10:31,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-21 09:10:31,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-21 09:10:31,317 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-21 09:10:31,406 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2022-11-21 09:10:31,406 INFO L444 ModelExtractionUtils]: 14 out of 61 variables were initially zero. Simplification set additionally 44 variables to zero. [2022-11-21 09:10:31,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:10:31,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:10:31,407 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:10:31,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-21 09:10:31,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-21 09:10:31,421 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-21 09:10:31,421 INFO L513 LassoAnalysis]: Proved termination. [2022-11-21 09:10:31,421 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~pt~0#1.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_3) = -1*ULTIMATE.start_substring_~pt~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0#1.base)_3 Supporting invariants [] [2022-11-21 09:10:31,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:31,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-21 09:10:31,650 INFO L156 tatePredicateManager]: 41 out of 43 supporting invariants were superfluous and have been removed [2022-11-21 09:10:31,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 09:10:31,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 09:10:31,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:31,817 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 [2022-11-21 09:10:31,817 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 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) [2022-11-21 09:10:31,872 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. 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 38 states and 48 transitions. Complement of second has 6 states. [2022-11-21 09:10:31,873 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 [2022-11-21 09:10:31,873 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) [2022-11-21 09:10:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-21 09:10:31,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-21 09:10:31,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:31,874 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 09:10:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 09:10:31,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 09:10:32,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:32,043 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-21 09:10:32,043 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 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) [2022-11-21 09:10:32,096 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. 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 38 states and 48 transitions. Complement of second has 6 states. [2022-11-21 09:10:32,096 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 [2022-11-21 09:10:32,098 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) [2022-11-21 09:10:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-21 09:10:32,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-21 09:10:32,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:32,101 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-21 09:10:32,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 09:10:32,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:32,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 09:10:32,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:10:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:32,270 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-21 09:10:32,271 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11 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) [2022-11-21 09:10:32,323 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 11. 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 39 states and 51 transitions. Complement of second has 5 states. [2022-11-21 09:10:32,324 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 [2022-11-21 09:10:32,324 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) [2022-11-21 09:10:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-11-21 09:10:32,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 3 letters. [2022-11-21 09:10:32,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:32,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 17 letters. Loop has 3 letters. [2022-11-21 09:10:32,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:32,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 6 letters. [2022-11-21 09:10:32,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-21 09:10:32,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 51 transitions. [2022-11-21 09:10:32,328 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 09:10:32,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2022-11-21 09:10:32,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-21 09:10:32,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-21 09:10:32,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-21 09:10:32,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:10:32,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:10:32,329 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:10:32,329 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:10:32,329 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-21 09:10:32,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:10:32,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-21 09:10:32,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-21 09:10:32,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:10:32 BoogieIcfgContainer [2022-11-21 09:10:32,336 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 09:10:32,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:10:32,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:10:32,336 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:10:32,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:17" (3/4) ... [2022-11-21 09:10:32,339 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 09:10:32,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:10:32,339 INFO L158 Benchmark]: Toolchain (without parser) took 16306.36ms. Allocated memory was 138.4MB in the beginning and 209.7MB in the end (delta: 71.3MB). Free memory was 107.1MB in the beginning and 91.4MB in the end (delta: 15.8MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2022-11-21 09:10:32,340 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:10:32,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.29ms. Allocated memory is still 138.4MB. Free memory was 107.1MB in the beginning and 91.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 09:10:32,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.03ms. Allocated memory is still 138.4MB. Free memory was 91.2MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:10:32,341 INFO L158 Benchmark]: Boogie Preprocessor took 67.31ms. Allocated memory is still 138.4MB. Free memory was 89.1MB in the beginning and 87.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:10:32,341 INFO L158 Benchmark]: RCFGBuilder took 352.71ms. Allocated memory is still 138.4MB. Free memory was 87.7MB in the beginning and 75.5MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:10:32,341 INFO L158 Benchmark]: BuchiAutomizer took 15313.91ms. Allocated memory was 138.4MB in the beginning and 209.7MB in the end (delta: 71.3MB). Free memory was 75.2MB in the beginning and 92.4MB in the end (delta: -17.3MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2022-11-21 09:10:32,342 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 209.7MB. Free memory was 92.4MB in the beginning and 91.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:10:32,344 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.29ms. Allocated memory is still 138.4MB. Free memory was 107.1MB in the beginning and 91.2MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.03ms. Allocated memory is still 138.4MB. Free memory was 91.2MB in the beginning and 89.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.31ms. Allocated memory is still 138.4MB. Free memory was 89.1MB in the beginning and 87.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.71ms. Allocated memory is still 138.4MB. Free memory was 87.7MB in the beginning and 75.5MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 15313.91ms. Allocated memory was 138.4MB in the beginning and 209.7MB in the end (delta: 71.3MB). Free memory was 75.2MB in the beginning and 92.4MB in the end (delta: -17.3MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 209.7MB. Free memory was 92.4MB in the beginning and 91.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * ps and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * ps2 and consists of 4 locations. One nondeterministic module has affine ranking function -1 * pt + unknown-#length-unknown[nondetString2] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 13.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 98 mSDtfsCounter, 89 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital256 mio100 ax107 hnf100 lsp91 ukn92 mio100 lsp43 div157 bol100 ite100 ukn100 eq168 hnf91 smp71 dnf154 smp77 tf100 neg95 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 108ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 12 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 60 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! [2022-11-21 09:10:32,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8486efb1-6613-49f2-846c-cc6af55feb34/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE