./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 041376d57652038a5d4ee57a004231861ab6efac51c30f8b6c72783e60a27529 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:30:10,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:30:10,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:30:10,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:30:10,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:30:10,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:30:10,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:30:10,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:30:10,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:30:10,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:30:10,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:30:10,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:30:10,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:30:10,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:30:10,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:30:10,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:30:10,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:30:10,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:30:10,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:30:10,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:30:10,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:30:10,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:30:10,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:30:10,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:30:10,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:30:10,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:30:10,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:30:10,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:30:10,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:30:10,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:30:10,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:30:10,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:30:10,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:30:10,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:30:10,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:30:10,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:30:10,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:30:10,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:30:10,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:30:10,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:30:10,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:30:10,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:30:10,483 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:30:10,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:30:10,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:30:10,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:30:10,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:30:10,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:30:10,490 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:30:10,490 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:30:10,490 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:30:10,491 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:30:10,492 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:30:10,492 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:30:10,492 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:30:10,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:30:10,493 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:30:10,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:30:10,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:30:10,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:30:10,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:30:10,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:30:10,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:30:10,495 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:30:10,495 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:30:10,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:30:10,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:30:10,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:30:10,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:30:10,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:30:10,499 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:30:10,499 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_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 041376d57652038a5d4ee57a004231861ab6efac51c30f8b6c72783e60a27529 [2022-11-18 20:30:10,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:30:10,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:30:10,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:30:10,908 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:30:10,911 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:30:10,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i [2022-11-18 20:30:11,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/data/467bfba4c/033826d4f82b4ff1829bd2645c538fe9/FLAG46a956468 [2022-11-18 20:30:11,633 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:30:11,634 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig2-alloca-2.i [2022-11-18 20:30:11,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/data/467bfba4c/033826d4f82b4ff1829bd2645c538fe9/FLAG46a956468 [2022-11-18 20:30:11,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/data/467bfba4c/033826d4f82b4ff1829bd2645c538fe9 [2022-11-18 20:30:11,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:30:11,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:30:11,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:30:11,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:30:11,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:30:11,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:30:11" (1/1) ... [2022-11-18 20:30:11,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f93eb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:11, skipping insertion in model container [2022-11-18 20:30:11,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:30:11" (1/1) ... [2022-11-18 20:30:11,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:30:11,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:30:12,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:30:12,496 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:30:12,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:30:12,587 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:30:12,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12 WrapperNode [2022-11-18 20:30:12,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:30:12,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:30:12,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:30:12,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:30:12,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,639 INFO L138 Inliner]: procedures = 110, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2022-11-18 20:30:12,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:30:12,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:30:12,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:30:12,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:30:12,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:30:12,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:30:12,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:30:12,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:30:12,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (1/1) ... [2022-11-18 20:30:12,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:12,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:12,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:12,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:30:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:30:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:30:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:30:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:30:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:30:12,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:30:12,940 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:30:12,942 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:30:13,075 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:30:13,083 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:30:13,083 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:30:13,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:13 BoogieIcfgContainer [2022-11-18 20:30:13,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:30:13,087 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:30:13,087 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:30:13,093 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:30:13,094 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:30:13,094 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:30:11" (1/3) ... [2022-11-18 20:30:13,096 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a2fc5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:30:13, skipping insertion in model container [2022-11-18 20:30:13,096 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:30:13,097 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:12" (2/3) ... [2022-11-18 20:30:13,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a2fc5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:30:13, skipping insertion in model container [2022-11-18 20:30:13,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:30:13,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:13" (3/3) ... [2022-11-18 20:30:13,099 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig2-alloca-2.i [2022-11-18 20:30:13,188 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:30:13,188 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:30:13,189 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:30:13,189 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:30:13,189 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:30:13,189 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:30:13,189 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:30:13,190 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:30:13,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:13,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 20:30:13,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:13,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:13,248 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:30:13,248 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:30:13,248 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:30:13,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:13,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 20:30:13,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:13,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:13,259 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:30:13,259 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-18 20:30:13,269 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem8#1, main_#t~mem7#1, main_#t~mem9#1, main_#t~mem6#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 4#L552-3true [2022-11-18 20:30:13,283 INFO L750 eck$LassoCheckResult]: Loop: 4#L552-3true call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 11#L552-1true assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 7#L554-3true assume !true; 10#L554-4true call main_#t~mem9#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 4#L552-3true [2022-11-18 20:30:13,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:13,290 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 20:30:13,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:13,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704457544] [2022-11-18 20:30:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:13,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:13,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:13,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1144360, now seen corresponding path program 1 times [2022-11-18 20:30:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:13,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69113544] [2022-11-18 20:30:13,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:13,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:13,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:13,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:13,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69113544] [2022-11-18 20:30:13,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69113544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:13,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:13,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:30:13,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421599758] [2022-11-18 20:30:13,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:13,707 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:30:13,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:13,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:30:13,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:30:13,759 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:13,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:13,765 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-11-18 20:30:13,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2022-11-18 20:30:13,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 20:30:13,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2022-11-18 20:30:13,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-18 20:30:13,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-18 20:30:13,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2022-11-18 20:30:13,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:13,776 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-18 20:30:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2022-11-18 20:30:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-18 20:30:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2022-11-18 20:30:13,813 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-18 20:30:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:30:13,820 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2022-11-18 20:30:13,820 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:30:13,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2022-11-18 20:30:13,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 20:30:13,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:13,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:13,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:30:13,822 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 20:30:13,823 INFO L748 eck$LassoCheckResult]: Stem: 30#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 31#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem8#1, main_#t~mem7#1, main_#t~mem9#1, main_#t~mem6#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 32#L552-3 [2022-11-18 20:30:13,823 INFO L750 eck$LassoCheckResult]: Loop: 32#L552-3 call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 33#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 34#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 35#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 36#L554-4 call main_#t~mem9#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 32#L552-3 [2022-11-18 20:30:13,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-18 20:30:13,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:13,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878000346] [2022-11-18 20:30:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:13,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:13,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:13,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:13,878 INFO L85 PathProgramCache]: Analyzing trace with hash 35468273, now seen corresponding path program 1 times [2022-11-18 20:30:13,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:13,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599819839] [2022-11-18 20:30:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:13,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:14,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:14,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599819839] [2022-11-18 20:30:14,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599819839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:14,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:14,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:30:14,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608478642] [2022-11-18 20:30:14,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:14,030 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:30:14,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:14,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:30:14,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:30:14,032 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2022-11-18 20:30:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:14,110 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2022-11-18 20:30:14,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2022-11-18 20:30:14,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-18 20:30:14,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2022-11-18 20:30:14,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-18 20:30:14,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2022-11-18 20:30:14,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2022-11-18 20:30:14,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:14,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-18 20:30:14,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2022-11-18 20:30:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-18 20:30:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 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) [2022-11-18 20:30:14,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-11-18 20:30:14,115 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-18 20:30:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:30:14,116 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-11-18 20:30:14,117 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:30:14,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2022-11-18 20:30:14,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-18 20:30:14,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:14,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:14,118 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:30:14,118 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2022-11-18 20:30:14,119 INFO L748 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 56#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem8#1, main_#t~mem7#1, main_#t~mem9#1, main_#t~mem6#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 57#L552-3 [2022-11-18 20:30:14,119 INFO L750 eck$LassoCheckResult]: Loop: 57#L552-3 call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 58#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 59#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 60#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 61#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 63#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 62#L554-4 call main_#t~mem9#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 57#L552-3 [2022-11-18 20:30:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:14,120 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-11-18 20:30:14,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:14,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019233817] [2022-11-18 20:30:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:14,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:14,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:14,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:14,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:14,160 INFO L85 PathProgramCache]: Analyzing trace with hash -274676436, now seen corresponding path program 1 times [2022-11-18 20:30:14,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:14,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356833505] [2022-11-18 20:30:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:14,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:14,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:14,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356833505] [2022-11-18 20:30:14,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356833505] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:30:14,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304768864] [2022-11-18 20:30:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:14,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:30:14,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:14,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:30:14,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:30:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:14,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:30:14,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:14,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:30:14,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-18 20:30:14,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:30:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:14,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:30:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:15,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304768864] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:30:15,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:30:15,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2022-11-18 20:30:15,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605741762] [2022-11-18 20:30:15,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:30:15,051 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:30:15,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:15,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:30:15,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:30:15,052 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:15,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:15,148 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-18 20:30:15,148 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2022-11-18 20:30:15,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-18 20:30:15,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 16 transitions. [2022-11-18 20:30:15,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-11-18 20:30:15,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-11-18 20:30:15,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 16 transitions. [2022-11-18 20:30:15,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:15,151 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-18 20:30:15,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 16 transitions. [2022-11-18 20:30:15,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 20:30:15,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:15,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-18 20:30:15,153 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-18 20:30:15,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:30:15,155 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-18 20:30:15,155 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:30:15,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2022-11-18 20:30:15,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2022-11-18 20:30:15,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:15,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:15,157 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:30:15,158 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 4, 1, 1, 1, 1] [2022-11-18 20:30:15,158 INFO L748 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 135#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem8#1, main_#t~mem7#1, main_#t~mem9#1, main_#t~mem6#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 136#L552-3 [2022-11-18 20:30:15,158 INFO L750 eck$LassoCheckResult]: Loop: 136#L552-3 call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 137#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 142#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 140#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 138#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 139#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 148#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 147#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 146#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 145#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 144#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 143#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 141#L554-4 call main_#t~mem9#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 136#L552-3 [2022-11-18 20:30:15,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2022-11-18 20:30:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:15,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115390428] [2022-11-18 20:30:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:15,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:15,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:15,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:15,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:15,189 INFO L85 PathProgramCache]: Analyzing trace with hash 351922269, now seen corresponding path program 2 times [2022-11-18 20:30:15,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:15,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540959063] [2022-11-18 20:30:15,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:15,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:15,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:15,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540959063] [2022-11-18 20:30:15,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540959063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:30:15,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156835683] [2022-11-18 20:30:15,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:30:15,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:30:15,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:15,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:30:15,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:30:15,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:30:15,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:30:15,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:30:15,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:15,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:30:15,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-18 20:30:15,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-18 20:30:16,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-18 20:30:16,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-18 20:30:16,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-18 20:30:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:16,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:30:16,228 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:16,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156835683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:30:16,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:30:16,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 18 [2022-11-18 20:30:16,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343164371] [2022-11-18 20:30:16,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:30:16,230 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 20:30:16,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:30:16,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:30:16,237 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. cyclomatic complexity: 2 Second operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 18 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:16,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:16,459 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2022-11-18 20:30:16,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 26 transitions. [2022-11-18 20:30:16,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2022-11-18 20:30:16,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 26 transitions. [2022-11-18 20:30:16,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2022-11-18 20:30:16,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-11-18 20:30:16,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 26 transitions. [2022-11-18 20:30:16,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:16,470 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-18 20:30:16,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 26 transitions. [2022-11-18 20:30:16,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-18 20:30:16,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.04) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:16,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-18 20:30:16,477 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-18 20:30:16,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:30:16,479 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-18 20:30:16,481 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:30:16,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 26 transitions. [2022-11-18 20:30:16,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2022-11-18 20:30:16,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:16,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:16,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 20:30:16,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 9, 1, 1, 1, 1] [2022-11-18 20:30:16,487 INFO L748 eck$LassoCheckResult]: Stem: 277#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 278#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem8#1, main_#t~mem7#1, main_#t~mem9#1, main_#t~mem6#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 279#L552-3 [2022-11-18 20:30:16,487 INFO L750 eck$LassoCheckResult]: Loop: 279#L552-3 call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 280#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 285#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 283#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 281#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 282#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 301#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 300#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 299#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 298#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 297#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 296#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 295#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 294#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 293#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 292#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 291#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 290#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 289#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 288#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 287#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 286#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 284#L554-4 call main_#t~mem9#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 279#L552-3 [2022-11-18 20:30:16,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:16,489 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2022-11-18 20:30:16,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:16,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342613453] [2022-11-18 20:30:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:16,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:16,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:16,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:16,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:16,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1943458812, now seen corresponding path program 3 times [2022-11-18 20:30:16,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:16,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731970930] [2022-11-18 20:30:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:16,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:16,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:16,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:16,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1979445758, now seen corresponding path program 1 times [2022-11-18 20:30:16,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:16,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903940945] [2022-11-18 20:30:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:16,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:16,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:16,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:23,406 WARN L233 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 138 DAG size of output: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:30:23,794 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:30:23,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:30:23,795 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:30:23,795 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:30:23,795 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:30:23,796 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:23,796 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:30:23,796 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:30:23,796 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca-2.i_Iteration5_Lasso [2022-11-18 20:30:23,796 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:30:23,797 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:30:23,820 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,835 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,837 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,853 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:23,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:24,239 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:24,248 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:24,252 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:24,676 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:30:24,681 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:30:24,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:24,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:24,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:24,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:30:24,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:24,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:24,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:24,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:24,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:24,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:24,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:24,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:24,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:24,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:24,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:24,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:24,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:24,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:30:24,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:24,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:24,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:24,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:24,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:24,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:24,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:24,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:24,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:24,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:24,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:24,816 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:24,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:24,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:30:24,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:24,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:24,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:24,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:24,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:24,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:24,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:24,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:24,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:24,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:24,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:24,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:24,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:24,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:30:24,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:24,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:24,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:24,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:24,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:24,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:24,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:24,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:24,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:24,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:24,918 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:24,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:24,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:24,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:24,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:24,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:24,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:30:24,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:24,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:24,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:24,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:24,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:24,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:24,972 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:24,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:30:24,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:24,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:24,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:24,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:24,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:24,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:24,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:24,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:25,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,026 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:30:25,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:25,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:25,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:25,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,074 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:30:25,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:25,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:25,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:25,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,127 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:30:25,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:25,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:25,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,196 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:30:25,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:25,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:25,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,254 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:30:25,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:25,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:25,290 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,297 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:25,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:25,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:30:25,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,353 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:30:25,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:25,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:25,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,408 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:30:25,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,439 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:25,439 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:25,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:25,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,471 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 20:30:25,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:25,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:25,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:25,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:25,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:25,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:25,503 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:25,522 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:30:25,561 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-11-18 20:30:25,562 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-11-18 20:30:25,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:25,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:25,595 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:25,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:30:25,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 20:30:25,668 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:30:25,669 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:30:25,669 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0#1.base) ULTIMATE.start_main_~x1~0#1.offset)_1 + 21 Supporting invariants [] [2022-11-18 20:30:25,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:25,737 INFO L156 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2022-11-18 20:30:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:25,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:30:25,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:25,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:30:25,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:25,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:25,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-18 20:30:26,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:30:26,329 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-18 20:30:26,331 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:26,427 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 26 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 48 states and 51 transitions. Complement of second has 6 states. [2022-11-18 20:30:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:30:26,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-11-18 20:30:26,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 23 letters. [2022-11-18 20:30:26,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:26,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 25 letters. Loop has 23 letters. [2022-11-18 20:30:26,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:26,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 46 letters. [2022-11-18 20:30:26,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:26,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2022-11-18 20:30:26,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:30:26,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 47 states and 50 transitions. [2022-11-18 20:30:26,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-11-18 20:30:26,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-11-18 20:30:26,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 50 transitions. [2022-11-18 20:30:26,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:30:26,449 INFO L218 hiAutomatonCegarLoop]: Abstraction has 47 states and 50 transitions. [2022-11-18 20:30:26,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 50 transitions. [2022-11-18 20:30:26,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 29. [2022-11-18 20:30:26,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.103448275862069) internal successors, (32), 28 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) [2022-11-18 20:30:26,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-18 20:30:26,454 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-18 20:30:26,454 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-18 20:30:26,454 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:30:26,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 32 transitions. [2022-11-18 20:30:26,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:30:26,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:26,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:26,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:30:26,456 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:30:26,456 INFO L748 eck$LassoCheckResult]: Stem: 501#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 502#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem8#1, main_#t~mem7#1, main_#t~mem9#1, main_#t~mem6#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 497#L552-3 call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 498#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 503#L554-3 [2022-11-18 20:30:26,456 INFO L750 eck$LassoCheckResult]: Loop: 503#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 504#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 503#L554-3 [2022-11-18 20:30:26,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:26,457 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-18 20:30:26,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:26,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203123492] [2022-11-18 20:30:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:26,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:26,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:26,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:26,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:26,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2022-11-18 20:30:26,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:26,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629202212] [2022-11-18 20:30:26,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:26,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:26,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:26,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:26,513 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2022-11-18 20:30:26,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:26,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995261409] [2022-11-18 20:30:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:26,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:26,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:26,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:26,994 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:30:26,994 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:30:26,994 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:30:26,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:30:26,995 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:30:26,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:26,995 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:30:26,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:30:26,995 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca-2.i_Iteration6_Lasso [2022-11-18 20:30:26,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:30:26,995 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:30:26,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,002 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,006 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,241 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,244 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,247 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,251 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,259 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,262 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,265 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,268 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,272 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:27,583 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:30:27,583 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:30:27,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,584 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 20:30:27,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:27,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:27,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:27,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:27,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:27,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:27,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:27,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:27,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:27,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:27,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,641 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:27,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 20:30:27,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:27,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:27,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:27,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:27,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:27,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:27,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:27,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:27,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:27,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,697 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:27,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 20:30:27,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:27,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:27,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:27,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:27,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:27,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:27,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:27,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:27,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,746 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:27,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 20:30:27,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:27,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:27,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:27,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:27,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:27,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:27,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:27,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:27,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,810 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:27,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 20:30:27,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:27,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:27,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:27,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:27,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:27,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:27,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:27,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,856 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:27,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 20:30:27,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:27,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:27,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:27,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:27,882 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:27,882 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:27,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:27,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:27,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,906 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,910 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:27,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 20:30:27,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:27,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:27,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:27,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:27,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:27,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:27,958 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:30:27,970 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-18 20:30:27,971 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-11-18 20:30:27,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:27,972 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:27,977 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:30:27,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 20:30:28,002 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:30:28,002 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:30:28,002 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2 Supporting invariants [] [2022-11-18 20:30:28,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:28,031 INFO L156 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2022-11-18 20:30:28,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:28,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:30:28,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:28,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:28,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:30:28,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:28,149 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:30:28,149 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:28,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 32 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 67 states and 72 transitions. Complement of second has 7 states. [2022-11-18 20:30:28,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:30:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-11-18 20:30:28,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 20:30:28,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:28,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-18 20:30:28,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:28,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-18 20:30:28,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:28,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 72 transitions. [2022-11-18 20:30:28,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:30:28,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 52 states and 55 transitions. [2022-11-18 20:30:28,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-18 20:30:28,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-18 20:30:28,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 55 transitions. [2022-11-18 20:30:28,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:30:28,178 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-18 20:30:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 55 transitions. [2022-11-18 20:30:28,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2022-11-18 20:30:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.06) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:28,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-18 20:30:28,183 INFO L240 hiAutomatonCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-18 20:30:28,183 INFO L428 stractBuchiCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-18 20:30:28,183 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:30:28,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 53 transitions. [2022-11-18 20:30:28,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-18 20:30:28,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:28,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:28,186 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 9, 2, 2, 1, 1, 1, 1] [2022-11-18 20:30:28,186 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 20:30:28,187 INFO L748 eck$LassoCheckResult]: Stem: 671#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 672#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem8#1, main_#t~mem7#1, main_#t~mem9#1, main_#t~mem6#1, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int(main_#t~nondet4#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~nondet4#1;call write~int(main_#t~nondet5#1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~nondet5#1; 666#L552-3 call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 667#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 679#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 677#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 675#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 676#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 715#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 714#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 713#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 712#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 711#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 710#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 709#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 708#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 707#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 706#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 705#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 704#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 703#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 683#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 684#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 680#L554-1 assume !(main_#t~mem7#1 > 1);havoc main_#t~mem7#1; 678#L554-4 call main_#t~mem9#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int(1 + main_#t~mem9#1, main_~x1~0#1.base, main_~x1~0#1.offset, 4);havoc main_#t~mem9#1; 668#L552-3 call main_#t~mem6#1 := read~int(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 669#L552-1 assume !!(main_#t~mem6#1 <= 10);havoc main_#t~mem6#1;call write~int(10, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 673#L554-3 [2022-11-18 20:30:28,187 INFO L750 eck$LassoCheckResult]: Loop: 673#L554-3 call main_#t~mem7#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 674#L554-1 assume !!(main_#t~mem7#1 > 1);havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int(main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int(main_#t~mem8#1 - 1, main_~x2~0#1.base, main_~x2~0#1.offset, 4);havoc main_#t~mem8#1; 673#L554-3 [2022-11-18 20:30:28,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:28,188 INFO L85 PathProgramCache]: Analyzing trace with hash 423138919, now seen corresponding path program 2 times [2022-11-18 20:30:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:28,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333077173] [2022-11-18 20:30:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:28,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:28,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:28,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:28,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 2 times [2022-11-18 20:30:28,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:28,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571717099] [2022-11-18 20:30:28,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:28,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:28,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:28,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:28,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:28,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1385391412, now seen corresponding path program 3 times [2022-11-18 20:30:28,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:28,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944577169] [2022-11-18 20:30:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:28,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:28,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:28,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:43,382 WARN L233 SmtUtils]: Spent 14.96s on a formula simplification. DAG size of input: 194 DAG size of output: 169 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-18 20:30:43,644 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:30:43,644 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:30:43,644 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:30:43,644 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:30:43,645 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:30:43,645 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:43,645 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:30:43,645 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:30:43,645 INFO L133 ssoRankerPreferences]: Filename of dumped script: Urban-2013WST-Fig2-alloca-2.i_Iteration7_Lasso [2022-11-18 20:30:43,645 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:30:43,645 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:30:43,648 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,946 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,949 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,952 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,956 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,963 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,967 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,970 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,973 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,976 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:43,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:44,322 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:30:44,323 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:30:44,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,328 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 20:30:44,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,372 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,372 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,384 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:44,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,397 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 20:30:44,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:44,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,455 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 20:30:44,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,506 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:44,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,518 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 20:30:44,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,562 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:44,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,571 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 20:30:44,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,608 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:44,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,618 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-18 20:30:44,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,643 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,654 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:44,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,666 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-18 20:30:44,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,706 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:44,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,719 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-18 20:30:44,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:44,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:44,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:44,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:44,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:44,736 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:44,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:44,748 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:30:44,763 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-11-18 20:30:44,763 INFO L444 ModelExtractionUtils]: 0 out of 7 variables were initially zero. Simplification set additionally 5 variables to zero. [2022-11-18 20:30:44,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:44,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:44,765 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:44,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-18 20:30:44,769 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:30:44,782 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 20:30:44,782 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:30:44,782 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_3 Supporting invariants [] [2022-11-18 20:30:44,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:44,830 INFO L156 tatePredicateManager]: 10 out of 10 supporting invariants were superfluous and have been removed [2022-11-18 20:30:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:44,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:30:44,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:44,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:30:44,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:44,998 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:30:44,998 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:45,028 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 62 states and 66 transitions. Complement of second has 7 states. [2022-11-18 20:30:45,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:30:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:45,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-11-18 20:30:45,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 27 letters. Loop has 2 letters. [2022-11-18 20:30:45,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:45,032 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:30:45,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:45,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:30:45,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:45,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:30:45,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:45,173 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:30:45,173 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:45,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 62 states and 66 transitions. Complement of second has 7 states. [2022-11-18 20:30:45,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:30:45,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2022-11-18 20:30:45,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 27 letters. Loop has 2 letters. [2022-11-18 20:30:45,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:45,202 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-18 20:30:45,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:45,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:30:45,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:45,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:30:45,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:45,336 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:30:45,336 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:45,366 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 53 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 73 states and 79 transitions. Complement of second has 6 states. [2022-11-18 20:30:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 20:30:45,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:30:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-11-18 20:30:45,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 27 letters. Loop has 2 letters. [2022-11-18 20:30:45,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:45,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 29 letters. Loop has 2 letters. [2022-11-18 20:30:45,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:45,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 27 letters. Loop has 4 letters. [2022-11-18 20:30:45,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:45,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 79 transitions. [2022-11-18 20:30:45,373 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:30:45,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 0 states and 0 transitions. [2022-11-18 20:30:45,373 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:30:45,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:30:45,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:30:45,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:45,374 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:30:45,374 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:30:45,374 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:30:45,375 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:30:45,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:30:45,375 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:30:45,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:30:45,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:30:45 BoogieIcfgContainer [2022-11-18 20:30:45,383 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:30:45,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:30:45,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:30:45,385 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:30:45,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:13" (3/4) ... [2022-11-18 20:30:45,389 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:30:45,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:30:45,390 INFO L158 Benchmark]: Toolchain (without parser) took 33482.77ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 95.6MB in the beginning and 85.9MB in the end (delta: 9.7MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. [2022-11-18 20:30:45,390 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:30:45,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 673.73ms. Allocated memory is still 134.2MB. Free memory was 95.3MB in the beginning and 103.0MB in the end (delta: -7.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:30:45,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.29ms. Allocated memory is still 134.2MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:30:45,392 INFO L158 Benchmark]: Boogie Preprocessor took 58.22ms. Allocated memory is still 134.2MB. Free memory was 101.5MB in the beginning and 100.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:30:45,392 INFO L158 Benchmark]: RCFGBuilder took 385.46ms. Allocated memory is still 134.2MB. Free memory was 100.3MB in the beginning and 89.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:30:45,392 INFO L158 Benchmark]: BuchiAutomizer took 32296.60ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 89.6MB in the beginning and 85.9MB in the end (delta: 3.6MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2022-11-18 20:30:45,393 INFO L158 Benchmark]: Witness Printer took 5.18ms. Allocated memory is still 199.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:30:45,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 673.73ms. Allocated memory is still 134.2MB. Free memory was 95.3MB in the beginning and 103.0MB in the end (delta: -7.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.29ms. Allocated memory is still 134.2MB. Free memory was 103.0MB in the beginning and 101.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.22ms. Allocated memory is still 134.2MB. Free memory was 101.5MB in the beginning and 100.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.46ms. Allocated memory is still 134.2MB. Free memory was 100.3MB in the beginning and 89.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 32296.60ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 89.6MB in the beginning and 85.9MB in the end (delta: 3.6MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Witness Printer took 5.18ms. Allocated memory is still 199.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x1][x1] + 21 and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x2][x2] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[x2][x2] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.2s and 8 iterations. TraceHistogramMax:10. Analysis of lassos took 30.1s. Construction of modules took 0.2s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 20 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: 90/90 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 144 IncrementalHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 53 mSDtfsCounter, 144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital225 mio100 ax108 hnf100 lsp88 ukn53 mio100 lsp35 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 54ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 20:30:45,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:45,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:45,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:30:46,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_381df009-e0a8-4096-a258-661cf9fbfb52/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE