./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/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_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/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_46186609-ca1d-45c0-bacb-2b014b88ab9e/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 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:00,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:01,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:25:01,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:01,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:01,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:01,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:01,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:01,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:01,055 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:01,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:01,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:01,057 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:01,058 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:25:01,058 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:25:01,059 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:25:01,059 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:25:01,060 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:25:01,060 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:25:01,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:01,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:25:01,067 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:01,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:01,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:01,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:01,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:25:01,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:25:01,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:25:01,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:25:01,074 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:01,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:01,076 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:25:01,076 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:01,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:01,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:01,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:01,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:01,078 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:25:01,078 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_46186609-ca1d-45c0-bacb-2b014b88ab9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03931b69e9073178e54f20b91a2b2a66154a89c69758aa4d312927278c5c0104 [2023-11-21 22:25:01,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:01,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:01,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:01,424 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:01,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:01,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2023-11-21 22:25:04,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:04,907 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:04,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/sv-benchmarks/c/array-industry-pattern/array_shadowinit.i [2023-11-21 22:25:04,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/data/924a6add9/928d54060cef4ef59feb3e6a3879250b/FLAG62ddb3da6 [2023-11-21 22:25:04,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/data/924a6add9/928d54060cef4ef59feb3e6a3879250b [2023-11-21 22:25:04,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:04,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:04,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:04,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:04,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:04,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:04" (1/1) ... [2023-11-21 22:25:04,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fc6636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:04, skipping insertion in model container [2023-11-21 22:25:04,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:04" (1/1) ... [2023-11-21 22:25:05,004 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:05,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:05,185 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:05,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:05,219 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:05,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05 WrapperNode [2023-11-21 22:25:05,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:05,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:05,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:05,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:05,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,256 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2023-11-21 22:25:05,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:05,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:05,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:05,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:05,269 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,271 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,281 INFO L187 HeapSplitter]: Split 4 memory accesses to 2 slices as follows [2, 2] [2023-11-21 22:25:05,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:05,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:05,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:05,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:05,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (1/1) ... [2023-11-21 22:25:05,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:05,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:05,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:05,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:25:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:25:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:25:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:25:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:25:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:25:05,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:05,460 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:05,463 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:05,598 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:05,607 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:05,607 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:25:05,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:05 BoogieIcfgContainer [2023-11-21 22:25:05,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:05,616 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:25:05,616 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:25:05,620 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:25:05,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:25:05,621 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:25:04" (1/3) ... [2023-11-21 22:25:05,621 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6449fa0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:25:05, skipping insertion in model container [2023-11-21 22:25:05,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:25:05,622 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:05" (2/3) ... [2023-11-21 22:25:05,622 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6449fa0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:25:05, skipping insertion in model container [2023-11-21 22:25:05,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:25:05,622 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:05" (3/3) ... [2023-11-21 22:25:05,624 INFO L332 chiAutomizerObserver]: Analyzing ICFG array_shadowinit.i [2023-11-21 22:25:05,687 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:25:05,687 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:25:05,687 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:25:05,687 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:25:05,687 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:25:05,688 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:25:05,688 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:25:05,688 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:25:05,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:05,719 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-21 22:25:05,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:25:05,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:25:05,726 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:25:05,726 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-21 22:25:05,726 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:25:05,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:05,729 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2023-11-21 22:25:05,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:25:05,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:25:05,729 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:25:05,729 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-21 22:25:05,741 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);~N~0 := 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet1#1;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L18true assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);main_~i~0#1 := 0;main_~k~0#1 := 0; 11#L23-2true [2023-11-21 22:25:05,743 INFO L750 eck$LassoCheckResult]: Loop: 11#L23-2true assume !!(main_~i~0#1 < ~N~0);call write~int#1(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 11#L23-2true [2023-11-21 22:25:05,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:05,755 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-21 22:25:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:05,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067485302] [2023-11-21 22:25:05,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:05,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:05,930 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:05,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:05,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:05,991 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2023-11-21 22:25:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:05,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597099418] [2023-11-21 22:25:05,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:05,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:06,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:06,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:06,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:06,034 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2023-11-21 22:25:06,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:06,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217382531] [2023-11-21 22:25:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:06,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:06,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:06,650 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:25:06,651 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:25:06,651 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:25:06,651 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:25:06,652 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:25:06,652 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:06,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:25:06,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:25:06,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration1_Lasso [2023-11-21 22:25:06,653 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:25:06,654 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:25:06,679 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 22:25:06,713 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 22:25:06,717 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 22:25:06,721 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 22:25:06,724 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 22:25:07,344 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:25:07,349 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:25:07,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,379 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 22:25:07,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:25:07,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:07,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:07,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:07,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:07,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:25:07,457 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 22:25:07,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:07,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:07,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:07,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:07,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,530 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 22:25:07,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:25:07,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:25:07,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:25:07,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:25:07,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:07,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:07,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,584 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,589 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 22:25:07,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:25:07,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:25:07,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:25:07,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:25:07,616 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:07,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:07,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,633 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:25:07,636 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 22:25:07,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:25:07,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:25:07,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:25:07,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:07,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:07,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,697 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:25:07,701 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 22:25:07,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:07,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:07,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:07,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:07,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,761 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:25:07,769 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 22:25:07,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:07,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:07,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:07,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:07,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,828 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,836 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 22:25:07,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:07,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:07,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:07,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:07,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:25:07,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:07,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:07,885 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:25:07,942 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2023-11-21 22:25:07,942 INFO L444 ModelExtractionUtils]: 6 out of 19 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-11-21 22:25:07,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:07,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:07,986 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:07,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 22:25:07,989 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:25:08,012 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:25:08,013 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:25:08,014 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#a~0#1.offset, v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1, ULTIMATE.start_main_~k~0#1) = -1*ULTIMATE.start_main_~#a~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_~#a~0#1.base)_1 - 4*ULTIMATE.start_main_~k~0#1 Supporting invariants [] [2023-11-21 22:25:08,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:08,059 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2023-11-21 22:25:08,070 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #length[~#a~0!base] could not be translated [2023-11-21 22:25:08,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:08,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:25:08,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:08,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:25:08,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:08,140 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 22:25:08,197 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-21 22:25:08,201 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:08,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 51 transitions. Complement of second has 6 states. [2023-11-21 22:25:08,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:25:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:08,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2023-11-21 22:25:08,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-21 22:25:08,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:25:08,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-21 22:25:08,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:25:08,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-21 22:25:08,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:25:08,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 51 transitions. [2023-11-21 22:25:08,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:25:08,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 9 states and 11 transitions. [2023-11-21 22:25:08,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-21 22:25:08,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-21 22:25:08,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2023-11-21 22:25:08,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:25:08,310 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-21 22:25:08,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2023-11-21 22:25:08,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-21 22:25:08,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:08,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-21 22:25:08,343 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-21 22:25:08,343 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-21 22:25:08,343 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:25:08,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2023-11-21 22:25:08,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:25:08,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:25:08,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:25:08,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-21 22:25:08,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:25:08,345 INFO L748 eck$LassoCheckResult]: Stem: 112#$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(19, 2);~N~0 := 0; 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet1#1;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 106#L18 assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);main_~i~0#1 := 0;main_~k~0#1 := 0; 107#L23-2 assume !(main_~i~0#1 < ~N~0); 110#L23-3 main_~i~0#1 := 0; 114#L29-2 [2023-11-21 22:25:08,346 INFO L750 eck$LassoCheckResult]: Loop: 114#L29-2 assume !!(main_~i~0#1 < ~N~0);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem2#1 == main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 108#L13 assume !(0 == __VERIFIER_assert_~cond#1); 109#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1;main_~i~0#1 := 1 + main_~i~0#1; 114#L29-2 [2023-11-21 22:25:08,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:08,347 INFO L85 PathProgramCache]: Analyzing trace with hash 28693928, now seen corresponding path program 1 times [2023-11-21 22:25:08,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:08,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255545718] [2023-11-21 22:25:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:08,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:08,503 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 22:25:08,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:08,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255545718] [2023-11-21 22:25:08,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255545718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:08,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:08,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:25:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087959333] [2023-11-21 22:25:08,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:08,509 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:25:08,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:08,510 INFO L85 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 1 times [2023-11-21 22:25:08,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:08,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810882461] [2023-11-21 22:25:08,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:08,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:08,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:25:08,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:25:08,620 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:08,639 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-11-21 22:25:08,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-11-21 22:25:08,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:25:08,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 10 transitions. [2023-11-21 22:25:08,641 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-21 22:25:08,641 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-21 22:25:08,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2023-11-21 22:25:08,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:25:08,642 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-21 22:25:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2023-11-21 22:25:08,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-21 22:25:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-11-21 22:25:08,644 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-21 22:25:08,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:25:08,645 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-21 22:25:08,646 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:25:08,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2023-11-21 22:25:08,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:25:08,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:25:08,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:25:08,647 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:25:08,648 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:25:08,648 INFO L748 eck$LassoCheckResult]: Stem: 137#$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(19, 2);~N~0 := 0; 138#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~mem2#1, main_~i~0#1, main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset;havoc main_#t~nondet1#1;~N~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 130#L18 assume ~N~0 > 0;havoc main_~i~0#1;havoc main_~k~0#1;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0 % 4294967296);main_~i~0#1 := 0;main_~k~0#1 := 0; 131#L23-2 assume !!(main_~i~0#1 < ~N~0);call write~int#1(main_~k~0#1, main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~k~0#1, 4);main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1; 134#L23-2 assume !(main_~i~0#1 < ~N~0); 135#L23-3 main_~i~0#1 := 0; 136#L29-2 [2023-11-21 22:25:08,648 INFO L750 eck$LassoCheckResult]: Loop: 136#L29-2 assume !!(main_~i~0#1 < ~N~0);call main_#t~mem2#1 := read~int#1(main_~#a~0#1.base, main_~#a~0#1.offset + 4 * main_~i~0#1, 4);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_#t~mem2#1 == main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 132#L13 assume !(0 == __VERIFIER_assert_~cond#1); 133#L13-3 havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~mem2#1;main_~i~0#1 := 1 + main_~i~0#1; 136#L29-2 [2023-11-21 22:25:08,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:08,649 INFO L85 PathProgramCache]: Analyzing trace with hash 889513522, now seen corresponding path program 1 times [2023-11-21 22:25:08,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:08,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841677191] [2023-11-21 22:25:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:08,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:08,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 2 times [2023-11-21 22:25:08,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:08,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879276909] [2023-11-21 22:25:08,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:08,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:08,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:08,716 INFO L85 PathProgramCache]: Analyzing trace with hash -450855157, now seen corresponding path program 1 times [2023-11-21 22:25:08,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:08,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057366155] [2023-11-21 22:25:08,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:08,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:08,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:09,208 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:25:09,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:25:09,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:25:09,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:25:09,208 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:25:09,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:09,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:25:09,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:25:09,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_shadowinit.i_Iteration3_Lasso [2023-11-21 22:25:09,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:25:09,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:25:09,212 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 22:25:09,215 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 22:25:09,218 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 22:25:09,220 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 22:25:09,230 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 22:25:09,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:09,470 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 22:25:09,474 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 22:25:09,477 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 22:25:09,724 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:25:09,724 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:25:09,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:09,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:09,726 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:09,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 22:25:09,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:25:09,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:09,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:25:09,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:09,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:09,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:09,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:25:09,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:25:09,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:09,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:09,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:09,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:09,795 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:09,802 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 22:25:09,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:09,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:25:09,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:09,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:09,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:09,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:25:09,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:25:09,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 22:25:09,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:09,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:09,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:09,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:09,854 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:09,861 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 22:25:09,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 22:25:09,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:09,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:25:09,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:09,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:09,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:09,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:25:09,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:25:09,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:09,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:09,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:09,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:09,913 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:09,921 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 22:25:09,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-21 22:25:09,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:09,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:09,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:09,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:09,940 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:09,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:09,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:09,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:09,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:09,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:09,978 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:09,982 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 22:25:09,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-21 22:25:09,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:09,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:09,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:09,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:10,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:10,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:10,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:10,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:10,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:10,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:10,040 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:10,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 22:25:10,058 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 22:25:10,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:10,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:10,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:10,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:10,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:10,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:10,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:10,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:10,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:10,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:10,114 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:10,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 22:25:10,117 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 22:25:10,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:10,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:10,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:10,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:10,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:10,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:10,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:10,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:10,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:10,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:10,168 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:10,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 22:25:10,170 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 22:25:10,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:10,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:10,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:10,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:10,182 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:10,183 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:10,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:10,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:10,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:10,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:10,220 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:10,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 22:25:10,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:25:10,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:10,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:10,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:10,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:10,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:10,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:10,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:25:10,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:10,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:10,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:10,291 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:10,310 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 22:25:10,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-21 22:25:10,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:25:10,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:25:10,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:25:10,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:25:10,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:25:10,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:25:10,356 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:25:10,400 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-21 22:25:10,400 INFO L444 ModelExtractionUtils]: 4 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. [2023-11-21 22:25:10,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:25:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:10,405 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:10,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:25:10,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-21 22:25:10,431 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:25:10,431 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:25:10,431 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ~N~0) = -1*ULTIMATE.start_main_~i~0#1 + 1*~N~0 Supporting invariants [] [2023-11-21 22:25:10,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:10,471 INFO L156 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2023-11-21 22:25:10,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:10,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:25:10,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:10,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:25:10,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:10,569 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 22:25:10,570 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 22:25:10,571 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:10,597 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 14 transitions. Complement of second has 4 states. [2023-11-21 22:25:10,598 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 22:25:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:25:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-21 22:25:10,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-21 22:25:10,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:25:10,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-21 22:25:10,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:25:10,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2023-11-21 22:25:10,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:25:10,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2023-11-21 22:25:10,605 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:25:10,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-11-21 22:25:10,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 22:25:10,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 22:25:10,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 22:25:10,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:25:10,606 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:25:10,606 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:25:10,606 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:25:10,606 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 22:25:10,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:25:10,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:25:10,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 22:25:10,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:25:10 BoogieIcfgContainer [2023-11-21 22:25:10,621 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:25:10,622 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:25:10,622 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:25:10,622 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:25:10,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:05" (3/4) ... [2023-11-21 22:25:10,626 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:25:10,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:25:10,629 INFO L158 Benchmark]: Toolchain (without parser) took 5660.37ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 99.2MB in the beginning and 95.9MB in the end (delta: 3.4MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2023-11-21 22:25:10,629 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:10,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.55ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 88.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:25:10,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.80ms. Allocated memory is still 146.8MB. Free memory was 88.7MB in the beginning and 87.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:10,640 INFO L158 Benchmark]: Boogie Preprocessor took 38.02ms. Allocated memory is still 146.8MB. Free memory was 87.0MB in the beginning and 85.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:10,640 INFO L158 Benchmark]: RCFGBuilder took 313.35ms. Allocated memory is still 146.8MB. Free memory was 85.3MB in the beginning and 75.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:25:10,641 INFO L158 Benchmark]: BuchiAutomizer took 5005.50ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 75.2MB in the beginning and 95.9MB in the end (delta: -20.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:25:10,641 INFO L158 Benchmark]: Witness Printer took 5.81ms. Allocated memory is still 176.2MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:10,643 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 107.0MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.55ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 88.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.80ms. Allocated memory is still 146.8MB. Free memory was 88.7MB in the beginning and 87.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.02ms. Allocated memory is still 146.8MB. Free memory was 87.0MB in the beginning and 85.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.35ms. Allocated memory is still 146.8MB. Free memory was 85.3MB in the beginning and 75.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5005.50ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 75.2MB in the beginning and 95.9MB in the end (delta: -20.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 5.81ms. Allocated memory is still 176.2MB. Free memory is still 95.9MB. 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[~#a~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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). 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. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 29 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital133 mio100 ax100 hnf100 lsp88 ukn79 mio100 lsp51 div136 bol100 ite100 ukn100 eq159 hnf92 smp86 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-21 22:25:10,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:10,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46186609-ca1d-45c0-bacb-2b014b88ab9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE