./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/max.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/max.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97795e7b99ddd869ecccb7f865206a167342b52333873684a94abd35acf6650e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:37,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:37,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 21:00:37,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:37,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:37,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:37,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:37,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:37,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:37,300 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:37,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:37,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:37,302 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:37,304 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 21:00:37,304 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 21:00:37,305 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 21:00:37,305 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 21:00:37,306 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 21:00:37,306 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 21:00:37,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:37,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 21:00:37,308 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:00:37,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:37,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:00:37,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:37,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 21:00:37,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 21:00:37,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 21:00:37,310 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:00:37,311 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:00:37,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:37,313 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 21:00:37,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:37,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:37,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:37,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:37,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:37,315 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 21:00:37,315 INFO L153 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_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97795e7b99ddd869ecccb7f865206a167342b52333873684a94abd35acf6650e [2023-11-21 21:00:37,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:37,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:37,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:37,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:37,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:37,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/reducercommutativity/max.i [2023-11-21 21:00:40,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:41,072 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:41,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/sv-benchmarks/c/reducercommutativity/max.i [2023-11-21 21:00:41,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/data/406791ee4/614afba7b40f45f980976dfbd6efbcc2/FLAG106ec4ad3 [2023-11-21 21:00:41,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/data/406791ee4/614afba7b40f45f980976dfbd6efbcc2 [2023-11-21 21:00:41,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:41,111 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:41,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:41,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:41,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:41,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5dcd65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41, skipping insertion in model container [2023-11-21 21:00:41,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,158 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:41,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:41,347 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:41,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:41,385 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:41,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41 WrapperNode [2023-11-21 21:00:41,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:41,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:41,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:41,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:41,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,433 INFO L138 Inliner]: procedures = 16, calls = 28, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2023-11-21 21:00:41,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:41,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:41,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:41,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:41,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,449 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,462 INFO L187 HeapSplitter]: Split 22 memory accesses to 3 slices as follows [2, 6, 14] [2023-11-21 21:00:41,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:41,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:41,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:41,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:41,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (1/1) ... [2023-11-21 21:00:41,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:41,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:41,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:41,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:00:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:00:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:00:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:00:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:00:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:00:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:00:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:00:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:00:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:00:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:00:41,631 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:41,634 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:41,955 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:41,967 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:41,968 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 21:00:41,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:41 BoogieIcfgContainer [2023-11-21 21:00:41,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:41,971 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 21:00:41,971 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 21:00:41,975 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 21:00:41,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:00:41,976 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:00:41" (1/3) ... [2023-11-21 21:00:41,978 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7facec0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:00:41, skipping insertion in model container [2023-11-21 21:00:41,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:00:41,978 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:41" (2/3) ... [2023-11-21 21:00:41,978 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7facec0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:00:41, skipping insertion in model container [2023-11-21 21:00:41,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:00:41,979 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:41" (3/3) ... [2023-11-21 21:00:41,980 INFO L332 chiAutomizerObserver]: Analyzing ICFG max.i [2023-11-21 21:00:42,029 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 21:00:42,029 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 21:00:42,029 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 21:00:42,029 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 21:00:42,029 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 21:00:42,030 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 21:00:42,030 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 21:00:42,030 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 21:00:42,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 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) [2023-11-21 21:00:42,056 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2023-11-21 21:00:42,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:42,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:42,061 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 21:00:42,061 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:00:42,062 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 21:00:42,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 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) [2023-11-21 21:00:42,065 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2023-11-21 21:00:42,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:42,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:42,066 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 21:00:42,066 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:00:42,075 INFO L748 eck$LassoCheckResult]: Stem: 30#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 9#L31true assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 17#L22-3true [2023-11-21 21:00:42,077 INFO L750 eck$LassoCheckResult]: Loop: 17#L22-3true assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 15#L23true assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 29#L23-2true max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 12#L22-2true max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 17#L22-3true [2023-11-21 21:00:42,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-21 21:00:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:42,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214049579] [2023-11-21 21:00:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:42,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:42,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:42,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:42,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:42,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1326822, now seen corresponding path program 1 times [2023-11-21 21:00:42,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:42,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162424362] [2023-11-21 21:00:42,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:42,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:42,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:42,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:42,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:42,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1805089543, now seen corresponding path program 1 times [2023-11-21 21:00:42,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:42,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748624788] [2023-11-21 21:00:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:42,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:42,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:42,489 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:43,086 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:00:43,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:00:43,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:00:43,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:00:43,087 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:00:43,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:43,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:00:43,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:00:43,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration1_Lasso [2023-11-21 21:00:43,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:00:43,088 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:00:43,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,601 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,623 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:43,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:44,102 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:00:44,108 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:00:44,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,136 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 [2023-11-21 21:00:44,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 21:00:44,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:00:44,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:00:44,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:00:44,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,195 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,203 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 [2023-11-21 21:00:44,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 21:00:44,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:00:44,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:00:44,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:00:44,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,266 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 [2023-11-21 21:00:44,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 21:00:44,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:00:44,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:00:44,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:00:44,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-21 21:00:44,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 21:00:44,321 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 [2023-11-21 21:00:44,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,339 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,339 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,383 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,391 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 [2023-11-21 21:00:44,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 21:00:44,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,455 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,457 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 [2023-11-21 21:00:44,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 21:00:44,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,512 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 21:00:44,520 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 [2023-11-21 21:00:44,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,587 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 [2023-11-21 21:00:44,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 21:00:44,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,637 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,644 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 [2023-11-21 21:00:44,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 21:00:44,671 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,695 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,708 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 [2023-11-21 21:00:44,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 21:00:44,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,740 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:44,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:44,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,767 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,774 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 [2023-11-21 21:00:44,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:44,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:44,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:44,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:44,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 21:00:44,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:44,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:44,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:00:44,874 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-11-21 21:00:44,874 INFO L444 ModelExtractionUtils]: 3 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. [2023-11-21 21:00:44,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:44,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:44,926 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:44,933 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:00:44,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 21:00:44,965 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 21:00:44,965 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:00:44,965 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_max_~i~0#1, ULTIMATE.start_max_~x#1.offset, v_rep(select #length ULTIMATE.start_max_~x#1.base)_1) = -4*ULTIMATE.start_max_~i~0#1 - 1*ULTIMATE.start_max_~x#1.offset + 1*v_rep(select #length ULTIMATE.start_max_~x#1.base)_1 Supporting invariants [] [2023-11-21 21:00:44,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:45,019 INFO L156 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2023-11-21 21:00:45,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~x!base] could not be translated [2023-11-21 21:00:45,032 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-21 21:00:45,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:00:45,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:00:45,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:45,220 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 [2023-11-21 21:00:45,249 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 32 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:45,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-21 21:00:45,320 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 32 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 31 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 93 transitions. Complement of second has 8 states. [2023-11-21 21:00:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 21:00:45,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:45,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 49 transitions. [2023-11-21 21:00:45,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-21 21:00:45,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:45,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-21 21:00:45,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:45,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 49 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-21 21:00:45,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:45,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 93 transitions. [2023-11-21 21:00:45,337 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-21 21:00:45,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 23 states and 32 transitions. [2023-11-21 21:00:45,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-21 21:00:45,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-21 21:00:45,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2023-11-21 21:00:45,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:45,344 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-11-21 21:00:45,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2023-11-21 21:00:45,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-21 21:00:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.391304347826087) internal successors, (32), 22 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:45,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2023-11-21 21:00:45,371 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-11-21 21:00:45,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2023-11-21 21:00:45,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 21:00:45,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 32 transitions. [2023-11-21 21:00:45,373 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-21 21:00:45,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:45,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:45,373 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-21 21:00:45,374 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:00:45,374 INFO L748 eck$LassoCheckResult]: Stem: 200#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 198#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 191#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 192#L22-3 assume !(max_~i~0#1 < ~N~0); 194#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 195#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 188#L22-8 [2023-11-21 21:00:45,374 INFO L750 eck$LassoCheckResult]: Loop: 188#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 190#L23-3 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 181#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 182#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 188#L22-8 [2023-11-21 21:00:45,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:45,375 INFO L85 PathProgramCache]: Analyzing trace with hash 889511083, now seen corresponding path program 1 times [2023-11-21 21:00:45,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:45,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823466956] [2023-11-21 21:00:45,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:45,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:45,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:45,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823466956] [2023-11-21 21:00:45,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823466956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:45,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:45,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:00:45,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088831475] [2023-11-21 21:00:45,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:45,510 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:00:45,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 1 times [2023-11-21 21:00:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:45,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361800606] [2023-11-21 21:00:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:45,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:45,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:45,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:45,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:45,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:45,607 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. cyclomatic complexity: 13 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) [2023-11-21 21:00:45,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:45,676 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2023-11-21 21:00:45,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2023-11-21 21:00:45,677 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-21 21:00:45,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 33 transitions. [2023-11-21 21:00:45,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-21 21:00:45,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-21 21:00:45,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2023-11-21 21:00:45,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:45,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 33 transitions. [2023-11-21 21:00:45,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2023-11-21 21:00:45,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2023-11-21 21:00:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 22 states have internal predecessors, (29), 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) [2023-11-21 21:00:45,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2023-11-21 21:00:45,689 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-21 21:00:45,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:45,690 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2023-11-21 21:00:45,691 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 21:00:45,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2023-11-21 21:00:45,691 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-21 21:00:45,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:45,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:45,692 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:45,692 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:00:45,693 INFO L748 eck$LassoCheckResult]: Stem: 255#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 251#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 246#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 247#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 256#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 254#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 252#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 253#L22-3 assume !(max_~i~0#1 < ~N~0); 248#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 249#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 243#L22-8 [2023-11-21 21:00:45,693 INFO L750 eck$LassoCheckResult]: Loop: 243#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 245#L23-3 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 234#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 235#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 243#L22-8 [2023-11-21 21:00:45,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:45,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1805667996, now seen corresponding path program 1 times [2023-11-21 21:00:45,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:45,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534481178] [2023-11-21 21:00:45,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:45,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:45,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:45,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534481178] [2023-11-21 21:00:45,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534481178] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:00:45,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054575613] [2023-11-21 21:00:45,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:45,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:45,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:45,786 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:00:45,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 21:00:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:45,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:00:45,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:45,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:00:45,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:45,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054575613] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:00:45,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:00:45,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-21 21:00:45,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725096500] [2023-11-21 21:00:45,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:00:45,969 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:00:45,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:45,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 2 times [2023-11-21 21:00:45,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:45,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730674497] [2023-11-21 21:00:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:45,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:45,987 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:46,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:46,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:46,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 21:00:46,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-21 21:00:46,065 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:00:46,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:46,169 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2023-11-21 21:00:46,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2023-11-21 21:00:46,173 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-21 21:00:46,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2023-11-21 21:00:46,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-21 21:00:46,175 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-21 21:00:46,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2023-11-21 21:00:46,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:46,176 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 38 transitions. [2023-11-21 21:00:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2023-11-21 21:00:46,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2023-11-21 21:00:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 26 states have internal predecessors, (34), 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) [2023-11-21 21:00:46,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2023-11-21 21:00:46,181 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 34 transitions. [2023-11-21 21:00:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:00:46,183 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2023-11-21 21:00:46,184 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 21:00:46,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2023-11-21 21:00:46,189 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-21 21:00:46,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:46,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:46,191 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:46,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:00:46,191 INFO L748 eck$LassoCheckResult]: Stem: 373#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 368#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 363#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 364#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 375#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 377#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 369#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 370#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 374#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 371#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 372#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 376#L22-3 assume !(max_~i~0#1 < ~N~0); 365#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 366#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 360#L22-8 [2023-11-21 21:00:46,191 INFO L750 eck$LassoCheckResult]: Loop: 360#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 362#L23-3 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 351#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 352#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 360#L22-8 [2023-11-21 21:00:46,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:46,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1818198429, now seen corresponding path program 2 times [2023-11-21 21:00:46,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:46,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470444116] [2023-11-21 21:00:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:46,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:46,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:46,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:46,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 3 times [2023-11-21 21:00:46,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:46,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734518572] [2023-11-21 21:00:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:46,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:46,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:46,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:46,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:46,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1198284866, now seen corresponding path program 1 times [2023-11-21 21:00:46,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:46,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724257202] [2023-11-21 21:00:46,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:46,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:46,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:46,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724257202] [2023-11-21 21:00:46,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724257202] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:00:46,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965040241] [2023-11-21 21:00:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:46,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:46,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:46,848 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:00:46,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 21:00:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:46,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-21 21:00:46,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:47,201 INFO L378 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 30 treesize of output 11 [2023-11-21 21:00:47,231 INFO L378 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 [2023-11-21 21:00:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:47,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:00:47,380 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 21:00:47,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2023-11-21 21:00:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:47,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965040241] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:00:47,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:00:47,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2023-11-21 21:00:47,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674254981] [2023-11-21 21:00:47,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:00:47,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:47,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-21 21:00:47,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2023-11-21 21:00:47,646 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand has 22 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 22 states have internal predecessors, (42), 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) [2023-11-21 21:00:48,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:48,833 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2023-11-21 21:00:48,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 143 transitions. [2023-11-21 21:00:48,836 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 32 [2023-11-21 21:00:48,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 114 states and 143 transitions. [2023-11-21 21:00:48,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2023-11-21 21:00:48,839 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2023-11-21 21:00:48,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 143 transitions. [2023-11-21 21:00:48,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:48,840 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 143 transitions. [2023-11-21 21:00:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 143 transitions. [2023-11-21 21:00:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 39. [2023-11-21 21:00:48,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 38 states have internal predecessors, (50), 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) [2023-11-21 21:00:48,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2023-11-21 21:00:48,856 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 50 transitions. [2023-11-21 21:00:48,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-21 21:00:48,857 INFO L428 stractBuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2023-11-21 21:00:48,858 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-21 21:00:48,858 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2023-11-21 21:00:48,859 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2023-11-21 21:00:48,861 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:48,861 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:48,862 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:48,862 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:00:48,862 INFO L748 eck$LassoCheckResult]: Stem: 671#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 667#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 663#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 664#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 669#L23 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 670#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 685#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 684#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 676#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 679#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 680#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 674#L22-3 assume !(max_~i~0#1 < ~N~0); 675#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 661#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 656#L22-8 [2023-11-21 21:00:48,862 INFO L750 eck$LassoCheckResult]: Loop: 656#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 658#L23-3 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 647#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 648#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 656#L22-8 [2023-11-21 21:00:48,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:48,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2083741857, now seen corresponding path program 1 times [2023-11-21 21:00:48,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:48,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665110729] [2023-11-21 21:00:48,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:48,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:48,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:48,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:48,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:48,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 4 times [2023-11-21 21:00:48,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:48,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713322011] [2023-11-21 21:00:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:48,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:48,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:48,954 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:48,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:48,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2085565180, now seen corresponding path program 1 times [2023-11-21 21:00:48,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:48,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452905462] [2023-11-21 21:00:48,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:48,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:48,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:49,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:50,294 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:00:50,294 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:00:50,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:00:50,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:00:50,294 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:00:50,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:50,295 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:00:50,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:00:50,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration5_Lasso [2023-11-21 21:00:50,295 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:00:50,295 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:00:50,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:53,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:53,982 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,072 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,075 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,077 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,079 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,093 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:00:54,554 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:00:54,554 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:00:54,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,562 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,564 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 [2023-11-21 21:00:54,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:54,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:54,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 21:00:54,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:54,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:54,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,628 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 21:00:54,637 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 [2023-11-21 21:00:54,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:54,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:54,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:54,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:54,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,686 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 21:00:54,689 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 [2023-11-21 21:00:54,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:54,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:54,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:54,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:54,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,722 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 21:00:54,724 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 [2023-11-21 21:00:54,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:54,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,736 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:54,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:54,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:54,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,755 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,764 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 [2023-11-21 21:00:54,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-21 21:00:54,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,775 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-11-21 21:00:54,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,777 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-21 21:00:54,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:54,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:54,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,813 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,821 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 [2023-11-21 21:00:54,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:54,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:54,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-21 21:00:54,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:54,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:54,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,870 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,882 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 [2023-11-21 21:00:54,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:54,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:54,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-21 21:00:54,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:00:54,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:54,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:54,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:54,943 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:54,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-21 21:00:54,949 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 [2023-11-21 21:00:54,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:00:54,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:00:54,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:00:54,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:00:54,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:00:54,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:00:54,993 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:00:55,033 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2023-11-21 21:00:55,033 INFO L444 ModelExtractionUtils]: 4 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. [2023-11-21 21:00:55,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:00:55,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:55,040 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:55,043 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:00:55,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-21 21:00:55,055 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-21 21:00:55,055 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:00:55,055 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_max_~x#1.base)_2, ULTIMATE.start_max_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_max_~x#1.base)_2 - 2*ULTIMATE.start_max_~i~0#1 Supporting invariants [1*v_rep(select #length ULTIMATE.start_max_~x#1.base)_2 - 2*~N~0 >= 0] [2023-11-21 21:00:55,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:55,104 INFO L156 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2023-11-21 21:00:55,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~x!base] could not be translated [2023-11-21 21:00:55,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:55,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-21 21:00:55,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:55,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 21:00:55,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:55,371 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2023-11-21 21:00:55,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16 Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2023-11-21 21:00:55,588 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 46 states and 63 transitions. Complement of second has 12 states. [2023-11-21 21:00:55,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 21:00:55,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2023-11-21 21:00:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 24 transitions. [2023-11-21 21:00:55,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 14 letters. Loop has 4 letters. [2023-11-21 21:00:55,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:55,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 18 letters. Loop has 4 letters. [2023-11-21 21:00:55,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:55,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 14 letters. Loop has 8 letters. [2023-11-21 21:00:55,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:00:55,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 63 transitions. [2023-11-21 21:00:55,593 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:00:55,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 40 states and 52 transitions. [2023-11-21 21:00:55,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-21 21:00:55,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-21 21:00:55,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 52 transitions. [2023-11-21 21:00:55,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:55,595 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 52 transitions. [2023-11-21 21:00:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 52 transitions. [2023-11-21 21:00:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-21 21:00:55,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.3) internal successors, (52), 39 states have internal predecessors, (52), 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) [2023-11-21 21:00:55,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2023-11-21 21:00:55,599 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 52 transitions. [2023-11-21 21:00:55,599 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2023-11-21 21:00:55,599 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-21 21:00:55,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 52 transitions. [2023-11-21 21:00:55,600 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:00:55,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:55,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:55,601 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:55,601 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 21:00:55,601 INFO L748 eck$LassoCheckResult]: Stem: 893#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 887#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 884#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 885#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 891#L23 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 890#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 888#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 889#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 894#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 900#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 899#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 898#L22-3 assume !(max_~i~0#1 < ~N~0); 897#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 896#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 895#L22-8 assume !(max_~i~0#1 < ~N~0); 879#L22-9 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 883#max_returnLabel#2 main_#t~ret9#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~1#1 := 0; 876#L43-3 [2023-11-21 21:00:55,601 INFO L750 eck$LassoCheckResult]: Loop: 876#L43-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem12#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int#2(main_#t~mem12#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem12#1; 875#L43-2 main_#t~post11#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 876#L43-3 [2023-11-21 21:00:55,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:55,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1591298555, now seen corresponding path program 1 times [2023-11-21 21:00:55,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:55,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713507454] [2023-11-21 21:00:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:55,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 21:00:55,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:55,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713507454] [2023-11-21 21:00:55,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713507454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:55,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:55,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:00:55,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695196325] [2023-11-21 21:00:55,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:55,654 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:00:55,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:55,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2023-11-21 21:00:55,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:55,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102621637] [2023-11-21 21:00:55,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:55,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:55,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:55,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:55,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:55,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:00:55,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:00:55,731 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2023-11-21 21:00:55,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:55,779 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2023-11-21 21:00:55,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 59 transitions. [2023-11-21 21:00:55,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:00:55,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 59 transitions. [2023-11-21 21:00:55,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2023-11-21 21:00:55,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2023-11-21 21:00:55,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 59 transitions. [2023-11-21 21:00:55,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:55,782 INFO L218 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2023-11-21 21:00:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 59 transitions. [2023-11-21 21:00:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2023-11-21 21:00:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 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) [2023-11-21 21:00:55,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2023-11-21 21:00:55,785 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 50 transitions. [2023-11-21 21:00:55,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:00:55,786 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2023-11-21 21:00:55,786 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-21 21:00:55,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2023-11-21 21:00:55,787 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:00:55,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:55,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:55,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:55,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 21:00:55,789 INFO L748 eck$LassoCheckResult]: Stem: 986#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 981#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 976#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 977#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 987#L23 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 984#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 985#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1001#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 998#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1000#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 999#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 997#L22-3 assume !(max_~i~0#1 < ~N~0); 996#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 995#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 994#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 975#L23-3 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 964#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 965#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 971#L22-8 assume !(max_~i~0#1 < ~N~0); 974#L22-9 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 980#max_returnLabel#2 main_#t~ret9#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~1#1 := 0; 970#L43-3 [2023-11-21 21:00:55,789 INFO L750 eck$LassoCheckResult]: Loop: 970#L43-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem12#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int#2(main_#t~mem12#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem12#1; 969#L43-2 main_#t~post11#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 970#L43-3 [2023-11-21 21:00:55,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:55,789 INFO L85 PathProgramCache]: Analyzing trace with hash -18080898, now seen corresponding path program 1 times [2023-11-21 21:00:55,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:55,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99066736] [2023-11-21 21:00:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:55,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:55,855 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 21:00:55,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:55,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99066736] [2023-11-21 21:00:55,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99066736] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:00:55,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250001330] [2023-11-21 21:00:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:55,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:55,857 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:00:55,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-21 21:00:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:55,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:00:55,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:55,985 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 21:00:55,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:00:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 21:00:56,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250001330] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:00:56,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:00:56,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-11-21 21:00:56,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928705462] [2023-11-21 21:00:56,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:00:56,023 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:00:56,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:56,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 2 times [2023-11-21 21:00:56,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:56,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605735732] [2023-11-21 21:00:56,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:56,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:56,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:56,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:56,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:56,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 21:00:56,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:00:56,101 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. cyclomatic complexity: 15 Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 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) [2023-11-21 21:00:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:56,195 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2023-11-21 21:00:56,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 75 transitions. [2023-11-21 21:00:56,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:00:56,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 60 states and 75 transitions. [2023-11-21 21:00:56,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-11-21 21:00:56,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2023-11-21 21:00:56,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 75 transitions. [2023-11-21 21:00:56,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:56,198 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 75 transitions. [2023-11-21 21:00:56,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 75 transitions. [2023-11-21 21:00:56,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2023-11-21 21:00:56,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.25) internal successors, (55), 43 states have internal predecessors, (55), 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) [2023-11-21 21:00:56,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2023-11-21 21:00:56,203 INFO L240 hiAutomatonCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-11-21 21:00:56,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:00:56,205 INFO L428 stractBuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2023-11-21 21:00:56,205 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-21 21:00:56,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2023-11-21 21:00:56,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:00:56,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:56,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:56,207 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:56,207 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 21:00:56,208 INFO L748 eck$LassoCheckResult]: Stem: 1222#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 1217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1213#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1214#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1223#L23 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1238#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1237#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1224#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1220#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1221#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1234#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1232#L22-3 assume !(max_~i~0#1 < ~N~0); 1209#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1210#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1228#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1227#L23-3 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1226#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1225#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1207#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1208#L23-3 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1195#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1196#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1204#L22-8 assume !(max_~i~0#1 < ~N~0); 1218#L22-9 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1212#max_returnLabel#2 main_#t~ret9#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~1#1 := 0; 1203#L43-3 [2023-11-21 21:00:56,208 INFO L750 eck$LassoCheckResult]: Loop: 1203#L43-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem12#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int#2(main_#t~mem12#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem12#1; 1202#L43-2 main_#t~post11#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 1203#L43-3 [2023-11-21 21:00:56,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2011161481, now seen corresponding path program 2 times [2023-11-21 21:00:56,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:56,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621216672] [2023-11-21 21:00:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:56,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:56,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-21 21:00:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:00:56,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:56,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621216672] [2023-11-21 21:00:56,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621216672] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 21:00:56,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582792283] [2023-11-21 21:00:56,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 21:00:56,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:00:56,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:56,971 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:00:56,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-21 21:00:57,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 21:00:57,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 21:00:57,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-21 21:00:57,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:00:57,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 21:00:57,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 18 [2023-11-21 21:00:57,296 INFO L378 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 [2023-11-21 21:00:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 21:00:57,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:00:57,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 21:00:57,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2023-11-21 21:00:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 21:00:57,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582792283] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:00:57,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 21:00:57,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2023-11-21 21:00:57,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244777529] [2023-11-21 21:00:57,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 21:00:57,561 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:00:57,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:57,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 3 times [2023-11-21 21:00:57,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:57,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282634378] [2023-11-21 21:00:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:57,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:57,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:57,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:57,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:57,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-21 21:00:57,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2023-11-21 21:00:57,634 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand has 24 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 24 states have internal predecessors, (52), 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) [2023-11-21 21:00:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:58,327 INFO L93 Difference]: Finished difference Result 105 states and 129 transitions. [2023-11-21 21:00:58,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 129 transitions. [2023-11-21 21:00:58,328 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 17 [2023-11-21 21:00:58,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 105 states and 129 transitions. [2023-11-21 21:00:58,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2023-11-21 21:00:58,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2023-11-21 21:00:58,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 129 transitions. [2023-11-21 21:00:58,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:00:58,331 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 129 transitions. [2023-11-21 21:00:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 129 transitions. [2023-11-21 21:00:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 56. [2023-11-21 21:00:58,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.25) internal successors, (70), 55 states have internal predecessors, (70), 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) [2023-11-21 21:00:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2023-11-21 21:00:58,336 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 70 transitions. [2023-11-21 21:00:58,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 21:00:58,337 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2023-11-21 21:00:58,337 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-21 21:00:58,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 70 transitions. [2023-11-21 21:00:58,338 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-21 21:00:58,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:00:58,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:00:58,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:58,339 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 21:00:58,339 INFO L748 eck$LassoCheckResult]: Stem: 1558#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 1552#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1546#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1547#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1561#L23 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1556#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1557#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1562#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1559#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1560#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1568#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1566#L22-3 assume !(max_~i~0#1 < ~N~0); 1548#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1549#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1550#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1571#L23-3 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1533#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1534#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1542#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1545#L23-3 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1564#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1567#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1565#L22-8 assume !(max_~i~0#1 < ~N~0); 1555#L22-9 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1551#max_returnLabel#2 main_#t~ret9#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~1#1 := 0; 1541#L43-3 [2023-11-21 21:00:58,339 INFO L750 eck$LassoCheckResult]: Loop: 1541#L43-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem12#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int#2(main_#t~mem12#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem12#1; 1540#L43-2 main_#t~post11#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 1541#L43-3 [2023-11-21 21:00:58,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:58,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1618134471, now seen corresponding path program 1 times [2023-11-21 21:00:58,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:58,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605358963] [2023-11-21 21:00:58,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:58,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:58,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:58,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:58,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:58,393 INFO L85 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 4 times [2023-11-21 21:00:58,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:58,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324743057] [2023-11-21 21:00:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:58,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:58,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:58,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:58,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:58,400 INFO L85 PathProgramCache]: Analyzing trace with hash -249063589, now seen corresponding path program 1 times [2023-11-21 21:00:58,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:58,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882506499] [2023-11-21 21:00:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:58,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:58,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:58,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:00,999 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:01:00,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:01:00,999 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:01:00,999 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:01:00,999 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:01:00,999 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:00,999 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:01:01,000 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:01:01,000 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration9_Lasso [2023-11-21 21:01:01,000 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:01:01,000 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:01:01,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:01,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:01,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:01,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:01,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,580 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,586 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,588 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,616 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:05,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:06,360 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:01:06,360 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:01:06,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,366 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-21 21:01:06,367 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 [2023-11-21 21:01:06,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:06,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:06,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:06,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,392 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-21 21:01:06,394 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 [2023-11-21 21:01:06,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:06,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:06,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:06,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-21 21:01:06,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,417 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-21 21:01:06,419 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 [2023-11-21 21:01:06,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:06,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:06,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:06,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-21 21:01:06,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,442 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-21 21:01:06,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:01:06,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:06,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:06,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:06,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-21 21:01:06,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,468 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-21 21:01:06,469 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 [2023-11-21 21:01:06,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,499 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-21 21:01:06,500 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 [2023-11-21 21:01:06,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,555 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:01:06,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-21 21:01:06,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,611 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-21 21:01:06,612 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 [2023-11-21 21:01:06,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-11-21 21:01:06,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,639 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-21 21:01:06,641 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 [2023-11-21 21:01:06,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-21 21:01:06,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,695 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-21 21:01:06,697 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 [2023-11-21 21:01:06,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,707 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-11-21 21:01:06,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,711 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-21 21:01:06,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-21 21:01:06,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,739 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-21 21:01:06,741 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 [2023-11-21 21:01:06,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,775 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-21 21:01:06,777 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 [2023-11-21 21:01:06,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,819 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-21 21:01:06,821 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 [2023-11-21 21:01:06,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,867 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-21 21:01:06,870 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 [2023-11-21 21:01:06,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:06,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:06,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:06,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:06,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,899 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-21 21:01:06,901 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 [2023-11-21 21:01:06,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:06,910 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-11-21 21:01:06,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:06,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:06,917 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-21 21:01:06,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:06,930 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:01:06,946 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-11-21 21:01:06,946 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. [2023-11-21 21:01:06,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:06,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,952 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,956 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:01:06,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-21 21:01:06,990 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 21:01:06,990 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:01:06,990 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, ULTIMATE.start_main_~#x~0#1.offset, v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_3) = -4*ULTIMATE.start_main_~i~1#1 - 1*ULTIMATE.start_main_~#x~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_3 Supporting invariants [] [2023-11-21 21:01:07,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:07,028 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2023-11-21 21:01:07,029 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~#x~0!base] could not be translated [2023-11-21 21:01:07,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:07,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:01:07,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:01:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:07,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:01:07,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:01:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:07,142 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 [2023-11-21 21:01:07,142 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 70 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:07,166 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 70 transitions. cyclomatic complexity: 20. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 76 transitions. Complement of second has 7 states. [2023-11-21 21:01:07,167 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 [2023-11-21 21:01:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:07,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-11-21 21:01:07,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 25 letters. Loop has 2 letters. [2023-11-21 21:01:07,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:01:07,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 27 letters. Loop has 2 letters. [2023-11-21 21:01:07,169 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:01:07,169 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 25 letters. Loop has 4 letters. [2023-11-21 21:01:07,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:01:07,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 76 transitions. [2023-11-21 21:01:07,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 21:01:07,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 57 states and 72 transitions. [2023-11-21 21:01:07,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-11-21 21:01:07,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-21 21:01:07,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 72 transitions. [2023-11-21 21:01:07,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:07,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 72 transitions. [2023-11-21 21:01:07,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 72 transitions. [2023-11-21 21:01:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-21 21:01:07,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 57 states have (on average 1.263157894736842) internal successors, (72), 56 states have internal predecessors, (72), 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) [2023-11-21 21:01:07,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2023-11-21 21:01:07,183 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 72 transitions. [2023-11-21 21:01:07,183 INFO L428 stractBuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2023-11-21 21:01:07,183 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-21 21:01:07,184 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 72 transitions. [2023-11-21 21:01:07,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 21:01:07,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:01:07,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:01:07,185 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:07,185 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:01:07,195 INFO L748 eck$LassoCheckResult]: Stem: 1793#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 1788#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1782#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1783#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1796#L23 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1792#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1789#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1790#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1794#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1795#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1824#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1823#L22-3 assume !(max_~i~0#1 < ~N~0); 1784#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1785#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1779#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1780#L23-3 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1768#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1769#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1802#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1799#L23-3 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1801#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1800#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1798#L22-8 assume !(max_~i~0#1 < ~N~0); 1791#L22-9 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1786#max_returnLabel#2 main_#t~ret9#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~1#1 := 0; 1787#L43-3 assume !(main_~i~1#1 < ~N~0 - 1); 1772#L43-4 havoc main_~i~1#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (~N~0 - 1), 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1771#L22-13 [2023-11-21 21:01:07,195 INFO L750 eck$LassoCheckResult]: Loop: 1771#L22-13 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1773#L23-6 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1774#L23-8 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1770#L22-12 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1771#L22-13 [2023-11-21 21:01:07,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:07,196 INFO L85 PathProgramCache]: Analyzing trace with hash -249063647, now seen corresponding path program 1 times [2023-11-21 21:01:07,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:07,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377475854] [2023-11-21 21:01:07,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:07,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 21:01:07,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377475854] [2023-11-21 21:01:07,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377475854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:07,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:07,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 21:01:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104194453] [2023-11-21 21:01:07,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:07,278 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 21:01:07,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 1 times [2023-11-21 21:01:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:07,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321832419] [2023-11-21 21:01:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:07,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,286 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:07,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 21:01:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 21:01:07,338 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. cyclomatic complexity: 21 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:07,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:01:07,362 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2023-11-21 21:01:07,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 72 transitions. [2023-11-21 21:01:07,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 21:01:07,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 72 transitions. [2023-11-21 21:01:07,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-21 21:01:07,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-21 21:01:07,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 72 transitions. [2023-11-21 21:01:07,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:07,364 INFO L218 hiAutomatonCegarLoop]: Abstraction has 58 states and 72 transitions. [2023-11-21 21:01:07,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 72 transitions. [2023-11-21 21:01:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2023-11-21 21:01:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 57 states have (on average 1.2456140350877194) internal successors, (71), 56 states have internal predecessors, (71), 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) [2023-11-21 21:01:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2023-11-21 21:01:07,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 57 states and 71 transitions. [2023-11-21 21:01:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 21:01:07,372 INFO L428 stractBuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2023-11-21 21:01:07,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-21 21:01:07,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 71 transitions. [2023-11-21 21:01:07,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 21:01:07,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:01:07,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:01:07,374 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:07,374 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 21:01:07,375 INFO L748 eck$LassoCheckResult]: Stem: 1916#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(6, 2);call write~init~int#1(109, 2, 0, 1);call write~init~int#1(97, 2, 1, 1);call write~init~int#1(120, 2, 2, 1);call write~init~int#1(46, 2, 3, 1);call write~init~int#1(99, 2, 4, 1);call write~init~int#1(0, 2, 5, 1);~N~0 := 0; 1911#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~ret6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~ret9#1, main_#t~mem10#1, main_#t~mem12#1, main_#t~post11#1, main_~i~1#1, main_#t~ret13#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;havoc main_#t~nondet5#1;~N~0 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 1904#L31 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1905#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1917#L23 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1915#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1912#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1913#L22-3 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1919#L23 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1944#L23-2 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1940#L22-2 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1936#L22-3 assume !(max_~i~0#1 < ~N~0); 1935#L22-4 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1908#max_returnLabel#1 main_#t~ret6#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret~1#1 := main_#t~ret6#1;havoc main_#t~ret6#1;call main_#t~mem7#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem7#1;havoc main_#t~mem7#1;call main_#t~mem8#1 := read~int#2(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int#2(main_#t~mem8#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem8#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1900#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1901#L23-3 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1890#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1891#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1899#L22-8 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1922#L23-3 assume !(max_~ret~0#1 < max_#t~mem2#1);max_#t~ite4#1 := max_~ret~0#1; 1924#L23-5 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1923#L22-7 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1921#L22-8 assume !(max_~i~0#1 < ~N~0); 1914#L22-9 max_#res#1 := (if max_~ret~0#1 % 4294967296 <= 2147483647 then max_~ret~0#1 % 4294967296 else max_~ret~0#1 % 4294967296 - 4294967296); 1909#max_returnLabel#2 main_#t~ret9#1 := max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;havoc max_#in~x#1.base, max_#in~x#1.offset;assume { :end_inline_max } true;main_~ret2~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;call main_#t~mem10#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem10#1;havoc main_#t~mem10#1;main_~i~1#1 := 0; 1910#L43-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem12#1 := read~int#2(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int#2(main_#t~mem12#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem12#1; 1897#L43-2 main_#t~post11#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post11#1;havoc main_#t~post11#1; 1898#L43-3 assume !(main_~i~1#1 < ~N~0 - 1); 1894#L43-4 havoc main_~i~1#1;call write~int#2(main_~temp~0#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (~N~0 - 1), 4);assume { :begin_inline_max } true;max_#in~x#1.base, max_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc max_#res#1;havoc max_#t~mem2#1, max_#t~ite4#1, max_#t~mem3#1, max_#t~post1#1, max_~x#1.base, max_~x#1.offset, max_~i~0#1, max_~ret~0#1;max_~x#1.base, max_~x#1.offset := max_#in~x#1.base, max_#in~x#1.offset;havoc max_~i~0#1;havoc max_~ret~0#1;max_~ret~0#1 := 0;max_~i~0#1 := 0; 1893#L22-13 [2023-11-21 21:01:07,375 INFO L750 eck$LassoCheckResult]: Loop: 1893#L22-13 assume !!(max_~i~0#1 < ~N~0);call max_#t~mem2#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4); 1895#L23-6 assume max_~ret~0#1 < max_#t~mem2#1;call max_#t~mem3#1 := read~int#2(max_~x#1.base, max_~x#1.offset + 4 * max_~i~0#1, 4);max_#t~ite4#1 := max_#t~mem3#1; 1896#L23-8 max_~ret~0#1 := max_#t~ite4#1;havoc max_#t~mem2#1;havoc max_#t~ite4#1;havoc max_#t~mem3#1; 1892#L22-12 max_#t~post1#1 := max_~i~0#1;max_~i~0#1 := 1 + max_#t~post1#1;havoc max_#t~post1#1; 1893#L22-13 [2023-11-21 21:01:07,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:07,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1168061379, now seen corresponding path program 1 times [2023-11-21 21:01:07,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:07,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550685414] [2023-11-21 21:01:07,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:07,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,400 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:07,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:07,431 INFO L85 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 2 times [2023-11-21 21:01:07,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:07,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747761444] [2023-11-21 21:01:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:07,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:07,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash 934015144, now seen corresponding path program 1 times [2023-11-21 21:01:07,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:07,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570517298] [2023-11-21 21:01:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:07,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:07,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,505 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:07,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:11,196 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 21:01:11,196 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 21:01:11,196 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 21:01:11,196 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 21:01:11,196 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 21:01:11,196 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:11,196 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 21:01:11,196 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 21:01:11,196 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration11_Lasso [2023-11-21 21:01:11,196 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 21:01:11,197 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 21:01:11,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,225 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,259 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:11,433 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:14,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:14,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:14,958 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 21:01:15,482 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 21:01:15,484 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 21:01:15,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,485 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,488 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 [2023-11-21 21:01:15,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-21 21:01:15,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:15,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,530 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-21 21:01:15,534 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 [2023-11-21 21:01:15,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-21 21:01:15,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,559 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-21 21:01:15,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:01:15,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:15,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,587 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-21 21:01:15,589 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 [2023-11-21 21:01:15,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-21 21:01:15,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,613 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-21 21:01:15,614 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 [2023-11-21 21:01:15,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-21 21:01:15,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,637 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-21 21:01:15,639 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 [2023-11-21 21:01:15,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:15,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,663 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-21 21:01:15,664 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 [2023-11-21 21:01:15,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:15,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,687 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-21 21:01:15,688 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 [2023-11-21 21:01:15,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-21 21:01:15,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,711 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-21 21:01:15,713 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 [2023-11-21 21:01:15,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:15,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:15,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:15,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,757 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,761 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 [2023-11-21 21:01:15,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:15,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:15,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-21 21:01:15,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:15,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,806 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,809 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 [2023-11-21 21:01:15,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-21 21:01:15,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-21 21:01:15,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,845 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-21 21:01:15,847 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 [2023-11-21 21:01:15,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,860 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2023-11-21 21:01:15,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,898 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-21 21:01:15,899 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 [2023-11-21 21:01:15,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-21 21:01:15,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,926 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-21 21:01:15,928 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 [2023-11-21 21:01:15,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:15,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:15,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:15,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:15,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,952 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-21 21:01:15,953 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 [2023-11-21 21:01:15,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,964 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:15,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:15,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:15,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-11-21 21:01:15,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:15,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:15,982 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:15,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-21 21:01:15,984 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 [2023-11-21 21:01:15,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:15,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:15,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:15,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:15,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:15,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:15,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:16,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,011 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-21 21:01:16,013 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 [2023-11-21 21:01:16,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:16,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:16,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:16,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,039 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-21 21:01:16,041 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 [2023-11-21 21:01:16,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:16,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:16,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:16,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,096 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,101 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 [2023-11-21 21:01:16,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:16,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:16,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-21 21:01:16,118 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-21 21:01:16,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,131 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-21 21:01:16,132 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 [2023-11-21 21:01:16,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:16,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:16,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2023-11-21 21:01:16,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,159 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-21 21:01:16,161 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 [2023-11-21 21:01:16,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:16,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,171 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:16,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:16,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2023-11-21 21:01:16,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,185 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-21 21:01:16,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 21:01:16,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 21:01:16,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 21:01:16,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 21:01:16,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2023-11-21 21:01:16,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,210 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-21 21:01:16,211 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 [2023-11-21 21:01:16,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:16,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:16,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 21:01:16,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-11-21 21:01:16,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,239 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-21 21:01:16,241 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 [2023-11-21 21:01:16,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 21:01:16,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 21:01:16,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 21:01:16,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 21:01:16,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 21:01:16,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 21:01:16,272 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 21:01:16,306 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2023-11-21 21:01:16,306 INFO L444 ModelExtractionUtils]: 1 out of 19 variables were initially zero. Simplification set additionally 15 variables to zero. [2023-11-21 21:01:16,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:16,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:16,308 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:16,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-21 21:01:16,309 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 21:01:16,319 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 21:01:16,319 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 21:01:16,319 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_max_~i~0#1) = 1*~N~0 - 1*ULTIMATE.start_max_~i~0#1 Supporting invariants [] [2023-11-21 21:01:16,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2023-11-21 21:01:16,358 INFO L156 tatePredicateManager]: 8 out of 8 supporting invariants were superfluous and have been removed [2023-11-21 21:01:16,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:16,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 21:01:16,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:01:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:16,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 21:01:16,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:01:16,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:16,489 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 [2023-11-21 21:01:16,489 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:16,507 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 20. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 77 transitions. Complement of second has 4 states. [2023-11-21 21:01:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 21:01:16,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2023-11-21 21:01:16,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 29 letters. Loop has 4 letters. [2023-11-21 21:01:16,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:01:16,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 33 letters. Loop has 4 letters. [2023-11-21 21:01:16,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:01:16,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 29 letters. Loop has 8 letters. [2023-11-21 21:01:16,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 21:01:16,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 77 transitions. [2023-11-21 21:01:16,511 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 21:01:16,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2023-11-21 21:01:16,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 21:01:16,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 21:01:16,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 21:01:16,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:16,512 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:01:16,512 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:01:16,512 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 21:01:16,512 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-21 21:01:16,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 21:01:16,512 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 21:01:16,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 21:01:16,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:01:16 BoogieIcfgContainer [2023-11-21 21:01:16,519 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 21:01:16,520 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:01:16,520 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:01:16,520 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:01:16,521 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:41" (3/4) ... [2023-11-21 21:01:16,523 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:01:16,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:01:16,525 INFO L158 Benchmark]: Toolchain (without parser) took 35413.94ms. Allocated memory was 119.5MB in the beginning and 509.6MB in the end (delta: 390.1MB). Free memory was 75.9MB in the beginning and 289.7MB in the end (delta: -213.7MB). Peak memory consumption was 179.0MB. Max. memory is 16.1GB. [2023-11-21 21:01:16,525 INFO L158 Benchmark]: CDTParser took 2.04ms. Allocated memory is still 94.4MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:16,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.59ms. Allocated memory is still 119.5MB. Free memory was 75.9MB in the beginning and 65.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:01:16,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.46ms. Allocated memory is still 119.5MB. Free memory was 65.0MB in the beginning and 63.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:16,526 INFO L158 Benchmark]: Boogie Preprocessor took 47.71ms. Allocated memory is still 119.5MB. Free memory was 63.3MB in the beginning and 60.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:01:16,527 INFO L158 Benchmark]: RCFGBuilder took 487.17ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 60.8MB in the beginning and 133.2MB in the end (delta: -72.4MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-11-21 21:01:16,527 INFO L158 Benchmark]: BuchiAutomizer took 34548.65ms. Allocated memory was 167.8MB in the beginning and 509.6MB in the end (delta: 341.8MB). Free memory was 133.2MB in the beginning and 289.7MB in the end (delta: -156.4MB). Peak memory consumption was 185.4MB. Max. memory is 16.1GB. [2023-11-21 21:01:16,527 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 509.6MB. Free memory is still 289.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:16,529 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.04ms. Allocated memory is still 94.4MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.59ms. Allocated memory is still 119.5MB. Free memory was 75.9MB in the beginning and 65.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.46ms. Allocated memory is still 119.5MB. Free memory was 65.0MB in the beginning and 63.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.71ms. Allocated memory is still 119.5MB. Free memory was 63.3MB in the beginning and 60.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 487.17ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 60.8MB in the beginning and 133.2MB in the end (delta: -72.4MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 34548.65ms. Allocated memory was 167.8MB in the beginning and 509.6MB in the end (delta: 341.8MB). Free memory was 133.2MB in the beginning and 289.7MB in the end (delta: -156.4MB). Peak memory consumption was 185.4MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 509.6MB. Free memory is still 289.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[~x!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression ~x!offset has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[~x!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #length[~#x~0!base] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (7 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 5 locations. One deterministic module has affine ranking function null and consists of 9 locations. One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function ((-1 * i) + N) and consists of 3 locations. 7 modules have a trivial ranking function, the largest among these consists of 24 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.4s and 12 iterations. TraceHistogramMax:2. Analysis of lassos took 30.9s. Construction of modules took 1.2s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 11. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 154 StatesRemovedByMinimization, 7 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 446 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 443 mSDsluCounter, 563 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 344 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1826 IncrementalHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 219 mSDtfsCounter, 1826 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU6 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital382 mio100 ax100 hnf100 lsp257 ukn32 mio100 lsp66 div118 bol100 ite100 ukn100 eq131 hnf97 smp64 dnf136 smp81 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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! [2023-11-21 21:01:16,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2023-11-21 21:01:16,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-21 21:01:16,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-21 21:01:17,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-21 21:01:17,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-21 21:01:17,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_945fcaf1-76ec-4228-9781-88236f17049c/bin/uautomizer-verify-bycVGegfSx/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