./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/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_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/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 64bit --witnessprinter.graph.data.programhash 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:10:01,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:01,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 22:10:01,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:01,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:01,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:01,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:01,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:01,483 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:10:01,488 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:10:01,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:01,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:01,489 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:01,492 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:10:01,492 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:10:01,493 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:10:01,493 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:10:01,494 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:10:01,494 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:10:01,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:01,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:10:01,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:01,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:01,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:10:01,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:10:01,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:10:01,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:10:01,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:01,499 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:10:01,499 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:01,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:01,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:01,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:01,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:01,502 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:10:01,502 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_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 [2023-11-21 22:10:01,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:01,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:01,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:01,900 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:01,901 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:01,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2023-11-21 22:10:05,137 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:10:05,408 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:10:05,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2023-11-21 22:10:05,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/data/03feae890/f9880d54df16473f8aea4ccb9dcc295c/FLAGf89ac4744 [2023-11-21 22:10:05,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/data/03feae890/f9880d54df16473f8aea4ccb9dcc295c [2023-11-21 22:10:05,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:10:05,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:10:05,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:05,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:10:05,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:10:05,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105834f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05, skipping insertion in model container [2023-11-21 22:10:05,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:10:05,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:05,643 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:10:05,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:05,670 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:10:05,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05 WrapperNode [2023-11-21 22:10:05,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:05,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:05,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:10:05,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:10:05,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,707 INFO L138 Inliner]: procedures = 7, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2023-11-21 22:10:05,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:05,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:10:05,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:10:05,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:10:05,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,722 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,733 INFO L187 HeapSplitter]: Split 15 memory accesses to 4 slices as follows [4, 4, 4, 3] [2023-11-21 22:10:05,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:10:05,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:10:05,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:10:05,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:10:05,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (1/1) ... [2023-11-21 22:10:05,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:05,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:05,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:05,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:10:05,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:10:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:10:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:10:05,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:10:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:10:05,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:10:05,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:10:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:10:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:10:05,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:10:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:10:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:10:05,964 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:10:05,967 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:10:06,160 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:10:06,170 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:10:06,174 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:10:06,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:06 BoogieIcfgContainer [2023-11-21 22:10:06,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:10:06,182 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:10:06,183 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:10:06,186 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:10:06,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:10:06,188 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:10:05" (1/3) ... [2023-11-21 22:10:06,189 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@329b8484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:10:06, skipping insertion in model container [2023-11-21 22:10:06,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:10:06,189 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:05" (2/3) ... [2023-11-21 22:10:06,190 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@329b8484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:10:06, skipping insertion in model container [2023-11-21 22:10:06,190 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:10:06,190 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:06" (3/3) ... [2023-11-21 22:10:06,191 INFO L332 chiAutomizerObserver]: Analyzing ICFG 4BitCounterPointer.c [2023-11-21 22:10:06,241 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:10:06,241 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:10:06,241 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:10:06,241 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:10:06,241 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:10:06,242 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:10:06,242 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:10:06,242 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:10:06,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:06,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:10:06,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:06,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:06,270 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:10:06,270 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:10:06,270 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:10:06,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:06,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:10:06,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:06,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:06,273 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:10:06,273 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:10:06,281 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 4#L24-2true [2023-11-21 22:10:06,282 INFO L750 eck$LassoCheckResult]: Loop: 4#L24-2true call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 8#L15-1true assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 2#L16true assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 4#L24-2true [2023-11-21 22:10:06,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:06,287 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 22:10:06,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:06,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024218787] [2023-11-21 22:10:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:06,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:06,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:06,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:06,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:06,635 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2023-11-21 22:10:06,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:06,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899425012] [2023-11-21 22:10:06,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:06,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:06,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:06,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:06,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:06,661 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2023-11-21 22:10:06,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852383456] [2023-11-21 22:10:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:06,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:06,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:08,457 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:10:08,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:10:08,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:10:08,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:10:08,458 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:10:08,458 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:08,459 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:10:08,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:10:08,459 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration1_Lasso [2023-11-21 22:10:08,459 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:10:08,460 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:10:08,487 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 22:10:08,499 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 22:10:08,502 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 22:10:08,505 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 22:10:08,510 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 22:10:08,513 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 22:10:08,517 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 22:10:08,522 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 22:10:08,526 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 22:10:08,529 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 22:10:08,532 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 22:10:08,539 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 22:10:09,735 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:10:09,741 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:10:09,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:09,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:09,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:09,754 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 22:10:09,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:10:09,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:09,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:09,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:09,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:09,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:09,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:09,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:09,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:09,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:09,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:09,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:09,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:10:09,817 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 22:10:09,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:09,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:09,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:09,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:09,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:09,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:09,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:09,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:09,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-21 22:10:09,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:09,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:09,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:09,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:10:09,880 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 22:10:09,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:09,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:09,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:09,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:09,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:09,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:09,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:09,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:09,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:09,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:09,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:09,932 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:09,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:10:09,937 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 22:10:09,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:09,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:09,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:09,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:09,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:09,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:09,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,004 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,017 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 22:10:10,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:10,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:10:10,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:10,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:10,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,068 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,075 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 22:10:10,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:10:10,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,097 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,098 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,134 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,141 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:10,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:10:10,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,180 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,201 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:10,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:10:10,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,254 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:10,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 22:10:10,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:10,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:10,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:10,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,315 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 22:10:10,322 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 22:10:10,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:10,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:10,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:10,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,388 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,398 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 22:10:10,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 22:10:10,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,452 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 22:10:10,455 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 22:10:10,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,509 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,517 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 22:10:10,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-21 22:10:10,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,567 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-21 22:10:10,570 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 22:10:10,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,644 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:10,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 22:10:10,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,708 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 22:10:10,717 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 22:10:10,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,732 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:10,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:10,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,754 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 22:10:10,759 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 22:10:10,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:10,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:10,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:10,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:10,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:10,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:10,795 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:10:10,825 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-11-21 22:10:10,825 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-11-21 22:10:10,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:10,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:10,867 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:10,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:10:10,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 22:10:10,897 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:10:10,897 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:10:10,897 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#2 ULTIMATE.start_main_~x0~0#1.base) ULTIMATE.start_main_~x0~0#1.offset)_1) = -2*v_rep(select (select #memory_int#2 ULTIMATE.start_main_~x0~0#1.base) ULTIMATE.start_main_~x0~0#1.offset)_1 + 1 Supporting invariants [] [2023-11-21 22:10:10,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:11,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:11,061 INFO L156 tatePredicateManager]: 22 out of 22 supporting invariants were superfluous and have been removed [2023-11-21 22:10:11,073 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~x0~0!base][~x0~0!offset] could not be translated [2023-11-21 22:10:11,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:11,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:10:11,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:11,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:10:11,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:11,206 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 22:10:11,259 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 22:10:11,261 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:11,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 8 states. [2023-11-21 22:10:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 22:10:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:11,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2023-11-21 22:10:11,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-21 22:10:11,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:11,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-21 22:10:11,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:11,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-21 22:10:11,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:11,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-21 22:10:11,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:10:11,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 13 states and 18 transitions. [2023-11-21 22:10:11,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-21 22:10:11,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 22:10:11,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-21 22:10:11,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:11,356 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-21 22:10:11,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-21 22:10:11,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-21 22:10:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:11,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-21 22:10:11,389 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-21 22:10:11,389 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-21 22:10:11,389 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:10:11,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-11-21 22:10:11,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:10:11,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:11,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:11,393 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-21 22:10:11,393 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 22:10:11,393 INFO L748 eck$LassoCheckResult]: Stem: 174#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 176#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 173#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 166#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 167#L20 [2023-11-21 22:10:11,394 INFO L750 eck$LassoCheckResult]: Loop: 167#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 170#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 171#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 178#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 167#L20 [2023-11-21 22:10:11,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:11,396 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2023-11-21 22:10:11,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:11,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668735388] [2023-11-21 22:10:11,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:11,690 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 22:10:11,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:11,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668735388] [2023-11-21 22:10:11,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668735388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:11,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:11,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:10:11,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442680238] [2023-11-21 22:10:11,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:11,695 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:10:11,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 1 times [2023-11-21 22:10:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:11,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63567463] [2023-11-21 22:10:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:11,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:11,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:11,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:11,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:10:11,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:10:11,893 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:11,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:11,931 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2023-11-21 22:10:11,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2023-11-21 22:10:11,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-21 22:10:11,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 22 transitions. [2023-11-21 22:10:11,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-21 22:10:11,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-11-21 22:10:11,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2023-11-21 22:10:11,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:11,934 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-21 22:10:11,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2023-11-21 22:10:11,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2023-11-21 22:10:11,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:11,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2023-11-21 22:10:11,937 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-21 22:10:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:10:11,939 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-21 22:10:11,939 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:10:11,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2023-11-21 22:10:11,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-21 22:10:11,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:11,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:11,941 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2023-11-21 22:10:11,941 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2023-11-21 22:10:11,941 INFO L748 eck$LassoCheckResult]: Stem: 215#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 216#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 212#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 213#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 210#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 211#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 214#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 221#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 218#L20 [2023-11-21 22:10:11,941 INFO L750 eck$LassoCheckResult]: Loop: 218#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 219#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 217#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 208#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 209#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 222#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 223#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 218#L20 [2023-11-21 22:10:11,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:11,942 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 1 times [2023-11-21 22:10:11,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:11,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793582391] [2023-11-21 22:10:11,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:11,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:11,971 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:11,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:11,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1770012235, now seen corresponding path program 1 times [2023-11-21 22:10:11,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:11,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890585035] [2023-11-21 22:10:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:11,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:12,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:12,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:12,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash -161041423, now seen corresponding path program 1 times [2023-11-21 22:10:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:12,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437284712] [2023-11-21 22:10:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:12,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:12,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:12,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:13,778 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:10:13,778 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:10:13,778 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:10:13,778 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:10:13,778 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:10:13,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:13,779 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:10:13,779 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:10:13,779 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration3_Lasso [2023-11-21 22:10:13,779 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:10:13,779 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:10:13,788 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 22:10:13,794 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 22:10:14,756 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 22:10:14,759 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 22:10:14,763 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 22:10:14,766 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 22:10:14,769 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 22:10:14,772 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 22:10:15,255 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:10:15,255 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:10:15,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,259 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-21 22:10:15,265 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 22:10:15,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:15,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:15,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:15,277 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,291 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-21 22:10:15,296 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 22:10:15,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,362 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-21 22:10:15,365 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 22:10:15,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,396 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-21 22:10:15,398 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 22:10:15,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,412 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,445 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-21 22:10:15,448 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 22:10:15,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,538 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,545 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 22:10:15,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-21 22:10:15,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,563 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,620 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,625 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 22:10:15,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-21 22:10:15,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,699 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,704 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 22:10:15,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-21 22:10:15,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,720 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,730 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-21 22:10:15,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,749 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-21 22:10:15,752 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 22:10:15,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-21 22:10:15,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,800 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-21 22:10:15,802 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 22:10:15,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,819 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,829 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-11-21 22:10:15,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,851 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,856 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 22:10:15,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-21 22:10:15,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,876 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,923 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-21 22:10:15,925 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 22:10:15,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:15,952 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:15,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:15,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:15,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:15,978 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:15,981 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 22:10:15,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-21 22:10:15,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:15,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:15,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:15,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:15,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:15,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:16,016 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:10:16,036 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-21 22:10:16,036 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:10:16,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:16,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:16,038 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:16,040 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:10:16,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-21 22:10:16,053 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:10:16,053 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:10:16,053 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem6#1) = -2*ULTIMATE.start_main_#t~mem6#1 + 1 Supporting invariants [] [2023-11-21 22:10:16,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:16,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:16,307 INFO L156 tatePredicateManager]: 37 out of 37 supporting invariants were superfluous and have been removed [2023-11-21 22:10:16,309 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-21 22:10:16,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:16,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:10:16,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:16,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:10:16,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:16,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:10:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:10:16,504 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 22:10:16,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:16,522 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 41 transitions. Complement of second has 5 states. [2023-11-21 22:10:16,522 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 22:10:16,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-11-21 22:10:16,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 7 letters. [2023-11-21 22:10:16,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:16,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-21 22:10:16,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:16,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 14 letters. [2023-11-21 22:10:16,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:16,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 41 transitions. [2023-11-21 22:10:16,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-21 22:10:16,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 41 transitions. [2023-11-21 22:10:16,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-21 22:10:16,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-21 22:10:16,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 41 transitions. [2023-11-21 22:10:16,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:16,530 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 41 transitions. [2023-11-21 22:10:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 41 transitions. [2023-11-21 22:10:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2023-11-21 22:10:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 26 states have internal predecessors, (36), 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 22:10:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2023-11-21 22:10:16,534 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-11-21 22:10:16,534 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-11-21 22:10:16,534 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 22:10:16,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2023-11-21 22:10:16,535 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2023-11-21 22:10:16,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:16,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:16,536 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-21 22:10:16,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:10:16,537 INFO L748 eck$LassoCheckResult]: Stem: 475#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 476#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 477#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 473#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 470#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 471#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 474#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 489#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 488#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 469#L24-2 [2023-11-21 22:10:16,537 INFO L750 eck$LassoCheckResult]: Loop: 469#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 472#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 468#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 469#L24-2 [2023-11-21 22:10:16,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1269321583, now seen corresponding path program 2 times [2023-11-21 22:10:16,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:16,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452298223] [2023-11-21 22:10:16,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:16,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:16,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:16,643 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:16,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:16,644 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2023-11-21 22:10:16,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:16,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974723157] [2023-11-21 22:10:16,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:16,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:16,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:16,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:16,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:16,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1467212283, now seen corresponding path program 3 times [2023-11-21 22:10:16,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:16,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628620912] [2023-11-21 22:10:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:16,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:16,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:16,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:18,768 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:10:18,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:10:18,768 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:10:18,768 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:10:18,768 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:10:18,768 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:18,769 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:10:18,769 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:10:18,769 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration4_Lasso [2023-11-21 22:10:18,769 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:10:18,769 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:10:18,771 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 22:10:18,782 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 22:10:18,785 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 22:10:18,788 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 22:10:18,790 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 22:10:18,793 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 22:10:18,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:10:18,809 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 22:10:18,812 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 22:10:18,815 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 22:10:18,818 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 22:10:19,749 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:10:19,749 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:10:19,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:19,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:19,756 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:19,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:19,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-21 22:10:19,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:19,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:19,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:19,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:19,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:19,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:19,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:19,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:19,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:19,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:19,816 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:19,818 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 22:10:19,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-21 22:10:19,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:19,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:19,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:19,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:19,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:19,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:19,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:19,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-21 22:10:19,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:19,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:19,882 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:19,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-21 22:10:19,885 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 22:10:19,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:19,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:19,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:19,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:19,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:19,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:19,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:19,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-21 22:10:19,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:19,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:19,942 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:19,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-21 22:10:19,943 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 22:10:19,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:19,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:19,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:19,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:19,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:19,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:19,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:19,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:19,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-21 22:10:19,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:19,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:19,975 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:19,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-21 22:10:19,977 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 22:10:19,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:19,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:19,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:19,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:19,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:19,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:19,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:19,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2023-11-21 22:10:20,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,001 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-21 22:10:20,003 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 22:10:20,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:20,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,031 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-21 22:10:20,033 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 22:10:20,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:20,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:20,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:20,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:20,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,107 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,109 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 22:10:20,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:20,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:20,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:20,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-21 22:10:20,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:20,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,160 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,162 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 22:10:20,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-21 22:10:20,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,176 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-21 22:10:20,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,196 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-21 22:10:20,198 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 22:10:20,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:20,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:20,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:20,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-21 22:10:20,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,223 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-21 22:10:20,227 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 22:10:20,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-21 22:10:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,263 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-21 22:10:20,265 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 22:10:20,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,281 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-21 22:10:20,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,300 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-21 22:10:20,303 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 22:10:20,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-21 22:10:20,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,334 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-21 22:10:20,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:20,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-21 22:10:20,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,373 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,374 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 22:10:20,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-21 22:10:20,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-11-21 22:10:20,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,443 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-21 22:10:20,445 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 22:10:20,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:20,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-21 22:10:20,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,474 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-21 22:10:20,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:20,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:20,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:20,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:20,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:20,490 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:20,490 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:20,497 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:10:20,517 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-11-21 22:10:20,517 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 6 variables to zero. [2023-11-21 22:10:20,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:20,518 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:20,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-21 22:10:20,519 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:10:20,530 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:10:20,530 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:10:20,530 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#2 ULTIMATE.start_main_~x0~0#1.base) ULTIMATE.start_main_~x0~0#1.offset)_3) = -2*v_rep(select (select #memory_int#2 ULTIMATE.start_main_~x0~0#1.base) ULTIMATE.start_main_~x0~0#1.offset)_3 + 1 Supporting invariants [] [2023-11-21 22:10:20,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-21 22:10:20,614 INFO L156 tatePredicateManager]: 22 out of 22 supporting invariants were superfluous and have been removed [2023-11-21 22:10:20,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~x0~0!base][~x0~0!offset] could not be translated [2023-11-21 22:10:20,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:20,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:10:20,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:20,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:10:20,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:20,714 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 22:10:20,715 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 22:10:20,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:20,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 76 transitions. Complement of second has 7 states. [2023-11-21 22:10:20,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 22:10:20,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-11-21 22:10:20,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2023-11-21 22:10:20,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:20,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2023-11-21 22:10:20,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:20,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 6 letters. [2023-11-21 22:10:20,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:20,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 76 transitions. [2023-11-21 22:10:20,756 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2023-11-21 22:10:20,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 51 states and 64 transitions. [2023-11-21 22:10:20,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2023-11-21 22:10:20,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-21 22:10:20,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 64 transitions. [2023-11-21 22:10:20,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:20,758 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 64 transitions. [2023-11-21 22:10:20,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 64 transitions. [2023-11-21 22:10:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2023-11-21 22:10:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 46 states have internal predecessors, (60), 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 22:10:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 60 transitions. [2023-11-21 22:10:20,764 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 60 transitions. [2023-11-21 22:10:20,764 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 60 transitions. [2023-11-21 22:10:20,765 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-21 22:10:20,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 60 transitions. [2023-11-21 22:10:20,766 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2023-11-21 22:10:20,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:20,766 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:20,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-21 22:10:20,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2023-11-21 22:10:20,767 INFO L748 eck$LassoCheckResult]: Stem: 711#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 712#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 715#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 740#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 705#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 706#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 739#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 735#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 730#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 731#L24 [2023-11-21 22:10:20,768 INFO L750 eck$LassoCheckResult]: Loop: 731#L24 assume 0 == main_#t~mem7#1;havoc main_#t~mem7#1;call write~int#0(1, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 745#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 744#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 743#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 738#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 742#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 736#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 737#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 731#L24 [2023-11-21 22:10:20,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1269321585, now seen corresponding path program 1 times [2023-11-21 22:10:20,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:20,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405473969] [2023-11-21 22:10:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:20,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:10:20,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:20,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405473969] [2023-11-21 22:10:20,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405473969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:20,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:20,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:10:20,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903844495] [2023-11-21 22:10:20,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:20,859 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:10:20,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 1 times [2023-11-21 22:10:20,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:20,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075305443] [2023-11-21 22:10:20,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:20,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:20,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:20,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:21,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:21,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:21,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:10:21,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:10:21,293 INFO L87 Difference]: Start difference. First operand 47 states and 60 transitions. cyclomatic complexity: 20 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:21,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:21,316 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2023-11-21 22:10:21,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 49 transitions. [2023-11-21 22:10:21,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2023-11-21 22:10:21,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 40 states and 49 transitions. [2023-11-21 22:10:21,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-21 22:10:21,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-21 22:10:21,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 49 transitions. [2023-11-21 22:10:21,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:21,319 INFO L218 hiAutomatonCegarLoop]: Abstraction has 40 states and 49 transitions. [2023-11-21 22:10:21,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 49 transitions. [2023-11-21 22:10:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-21 22:10:21,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.225) internal successors, (49), 39 states have internal predecessors, (49), 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 22:10:21,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2023-11-21 22:10:21,324 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 49 transitions. [2023-11-21 22:10:21,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:10:21,326 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2023-11-21 22:10:21,327 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-21 22:10:21,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 49 transitions. [2023-11-21 22:10:21,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2023-11-21 22:10:21,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:21,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:21,329 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 2, 1, 1] [2023-11-21 22:10:21,329 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:10:21,329 INFO L748 eck$LassoCheckResult]: Stem: 807#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 808#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 811#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 832#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 833#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 831#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 829#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 826#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 812#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 813#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 835#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 801#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 802#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 836#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 819#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 814#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 800#L24-2 [2023-11-21 22:10:21,329 INFO L750 eck$LassoCheckResult]: Loop: 800#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 834#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 799#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 800#L24-2 [2023-11-21 22:10:21,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:21,330 INFO L85 PathProgramCache]: Analyzing trace with hash -697316797, now seen corresponding path program 4 times [2023-11-21 22:10:21,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:21,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984902144] [2023-11-21 22:10:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:21,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-21 22:10:21,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:21,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984902144] [2023-11-21 22:10:21,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984902144] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:10:21,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134637328] [2023-11-21 22:10:21,503 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-21 22:10:21,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:10:21,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:21,504 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:10:21,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-21 22:10:21,613 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-21 22:10:21,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:10:21,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:10:21,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:21,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:10:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:10:21,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:10:21,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134637328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:21,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:10:21,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-21 22:10:21,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850867714] [2023-11-21 22:10:21,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:21,653 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:10:21,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2023-11-21 22:10:21,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:21,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222936886] [2023-11-21 22:10:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,676 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:21,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:21,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:10:21,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:10:21,753 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. cyclomatic complexity: 14 Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:21,779 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-21 22:10:21,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2023-11-21 22:10:21,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-21 22:10:21,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 36 transitions. [2023-11-21 22:10:21,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-21 22:10:21,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2023-11-21 22:10:21,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 36 transitions. [2023-11-21 22:10:21,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:21,782 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-11-21 22:10:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 36 transitions. [2023-11-21 22:10:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2023-11-21 22:10:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 29 states have internal predecessors, (35), 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 22:10:21,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-11-21 22:10:21,785 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-21 22:10:21,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:10:21,786 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-11-21 22:10:21,787 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-21 22:10:21,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 35 transitions. [2023-11-21 22:10:21,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-21 22:10:21,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:21,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:21,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1] [2023-11-21 22:10:21,789 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 2, 2, 1, 1, 1] [2023-11-21 22:10:21,789 INFO L748 eck$LassoCheckResult]: Stem: 936#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 937#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 938#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 934#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 930#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 931#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 935#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 955#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 954#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 953#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 947#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 950#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 946#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 948#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 943#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 942#L20 [2023-11-21 22:10:21,789 INFO L750 eck$LassoCheckResult]: Loop: 942#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 941#L24 assume 0 == main_#t~mem7#1;havoc main_#t~mem7#1;call write~int#0(1, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 932#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 933#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 928#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 929#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 957#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 956#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 939#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 940#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 952#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 951#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 949#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 944#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 945#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 942#L20 [2023-11-21 22:10:21,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:21,790 INFO L85 PathProgramCache]: Analyzing trace with hash -161041423, now seen corresponding path program 5 times [2023-11-21 22:10:21,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:21,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572263627] [2023-11-21 22:10:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:21,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:21,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash -97586480, now seen corresponding path program 1 times [2023-11-21 22:10:21,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:21,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440184205] [2023-11-21 22:10:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:21,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:21,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:21,857 INFO L85 PathProgramCache]: Analyzing trace with hash 569106656, now seen corresponding path program 1 times [2023-11-21 22:10:21,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:21,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307608726] [2023-11-21 22:10:21,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:21,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:21,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:25,007 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:10:25,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:10:25,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:10:25,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:10:25,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:10:25,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:25,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:10:25,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:10:25,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration7_Lasso [2023-11-21 22:10:25,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:10:25,008 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:10:25,011 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 22:10:25,014 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 22:10:25,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:10:25,018 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:10:25,952 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 22:10:25,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:10:25,957 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 22:10:25,960 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 22:10:25,962 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 22:10:26,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:10:26,449 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:10:26,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,458 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-21 22:10:26,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:26,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:26,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:26,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:26,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-11-21 22:10:26,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,513 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-21 22:10:26,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-21 22:10:26,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:26,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:26,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:26,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:26,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,571 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-21 22:10:26,573 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 22:10:26,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:26,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,628 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-21 22:10:26,630 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 22:10:26,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:26,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,664 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-21 22:10:26,665 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 22:10:26,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:26,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,699 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-21 22:10:26,700 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 22:10:26,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:26,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,727 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2023-11-21 22:10:26,729 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 22:10:26,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:26,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,787 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-21 22:10:26,792 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 22:10:26,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:26,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,823 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-21 22:10:26,824 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 22:10:26,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:26,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-11-21 22:10:26,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,855 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-21 22:10:26,857 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 22:10:26,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:26,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:26,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:26,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:26,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:10:26,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:10:26,874 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:10:26,883 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-11-21 22:10:26,883 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-11-21 22:10:26,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:26,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:26,885 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:26,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-21 22:10:26,886 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:10:26,898 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-11-21 22:10:26,898 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:10:26,898 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int#0 ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2) = -2*v_rep(select (select #memory_int#0 ULTIMATE.start_main_~x2~0#1.base) ULTIMATE.start_main_~x2~0#1.offset)_2 + 1 Supporting invariants [] [2023-11-21 22:10:26,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:27,097 INFO L156 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2023-11-21 22:10:27,098 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#0[~x2~0!base][~x2~0!offset] could not be translated [2023-11-21 22:10:27,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:27,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:10:27,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:27,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:10:27,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:27,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-11-21 22:10:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 22:10:27,334 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-21 22:10:27,334 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 35 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:27,357 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 35 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 77 transitions. Complement of second has 7 states. [2023-11-21 22:10:27,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 22:10:27,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:27,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-21 22:10:27,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 15 letters. [2023-11-21 22:10:27,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:27,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 30 letters. Loop has 15 letters. [2023-11-21 22:10:27,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:27,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 30 letters. [2023-11-21 22:10:27,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:10:27,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 77 transitions. [2023-11-21 22:10:27,363 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2023-11-21 22:10:27,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 65 states and 77 transitions. [2023-11-21 22:10:27,364 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2023-11-21 22:10:27,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2023-11-21 22:10:27,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 77 transitions. [2023-11-21 22:10:27,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:27,365 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 77 transitions. [2023-11-21 22:10:27,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 77 transitions. [2023-11-21 22:10:27,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-21 22:10:27,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 64 states have internal predecessors, (77), 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 22:10:27,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2023-11-21 22:10:27,372 INFO L240 hiAutomatonCegarLoop]: Abstraction has 65 states and 77 transitions. [2023-11-21 22:10:27,372 INFO L428 stractBuchiCegarLoop]: Abstraction has 65 states and 77 transitions. [2023-11-21 22:10:27,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:27,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-21 22:10:27,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 77 transitions. [2023-11-21 22:10:27,374 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 21 [2023-11-21 22:10:27,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:27,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:27,375 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1, 1] [2023-11-21 22:10:27,375 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 2, 2, 1, 1, 1] [2023-11-21 22:10:27,375 INFO L748 eck$LassoCheckResult]: Stem: 1296#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1297#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1302#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1300#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1301#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1336#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1335#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1334#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1333#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1294#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1295#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1291#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1292#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1341#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1323#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1324#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1307#L24 assume !(0 == main_#t~mem7#1);havoc main_#t~mem7#1;call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(1, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1308#L24-2 [2023-11-21 22:10:27,376 INFO L750 eck$LassoCheckResult]: Loop: 1308#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1342#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1340#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1338#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1339#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1337#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1303#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1304#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1298#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1299#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1344#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1345#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1343#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1319#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1320#L24 assume 0 == main_#t~mem7#1;havoc main_#t~mem7#1;call write~int#0(1, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1308#L24-2 [2023-11-21 22:10:27,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash -141984138, now seen corresponding path program 1 times [2023-11-21 22:10:27,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:27,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266703174] [2023-11-21 22:10:27,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:27,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-21 22:10:27,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:27,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266703174] [2023-11-21 22:10:27,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266703174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:27,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:27,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:10:27,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47801152] [2023-11-21 22:10:27,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:27,478 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:10:27,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:27,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1365622390, now seen corresponding path program 2 times [2023-11-21 22:10:27,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:27,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461662124] [2023-11-21 22:10:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:27,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:27,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:27,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:28,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:28,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:10:28,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:10:28,303 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. cyclomatic complexity: 19 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 22:10:28,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:28,324 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2023-11-21 22:10:28,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 97 transitions. [2023-11-21 22:10:28,325 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-11-21 22:10:28,326 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 76 states and 88 transitions. [2023-11-21 22:10:28,326 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2023-11-21 22:10:28,326 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2023-11-21 22:10:28,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 88 transitions. [2023-11-21 22:10:28,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:28,327 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 88 transitions. [2023-11-21 22:10:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 88 transitions. [2023-11-21 22:10:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2023-11-21 22:10:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.162162162162162) internal successors, (86), 73 states have internal predecessors, (86), 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 22:10:28,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2023-11-21 22:10:28,333 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 86 transitions. [2023-11-21 22:10:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:10:28,334 INFO L428 stractBuchiCegarLoop]: Abstraction has 74 states and 86 transitions. [2023-11-21 22:10:28,334 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-21 22:10:28,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 86 transitions. [2023-11-21 22:10:28,335 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2023-11-21 22:10:28,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:28,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:28,336 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 3, 2, 1, 1, 1, 1, 1] [2023-11-21 22:10:28,336 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:10:28,337 INFO L748 eck$LassoCheckResult]: Stem: 1455#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1456#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1459#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1482#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1449#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1450#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1483#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1487#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1486#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1453#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1454#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1458#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1477#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1478#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1474#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1467#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1465#L24 assume 0 == main_#t~mem7#1;havoc main_#t~mem7#1;call write~int#0(1, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1466#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1473#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1495#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1489#L24-2 [2023-11-21 22:10:28,337 INFO L750 eck$LassoCheckResult]: Loop: 1489#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1493#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1488#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1489#L24-2 [2023-11-21 22:10:28,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:28,337 INFO L85 PathProgramCache]: Analyzing trace with hash 693278934, now seen corresponding path program 2 times [2023-11-21 22:10:28,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:28,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205758687] [2023-11-21 22:10:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:28,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:28,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2023-11-21 22:10:28,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:28,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546188660] [2023-11-21 22:10:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:28,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:28,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1024996556, now seen corresponding path program 3 times [2023-11-21 22:10:28,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:28,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583763638] [2023-11-21 22:10:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:28,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-21 22:10:28,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:28,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583763638] [2023-11-21 22:10:28,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583763638] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:10:28,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515360677] [2023-11-21 22:10:28,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:10:28,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:10:28,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:28,574 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:10:28,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-21 22:10:28,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-21 22:10:28,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:10:28,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:10:28,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:28,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:10:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-21 22:10:28,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:10:28,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515360677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:28,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:10:28,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2023-11-21 22:10:28,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763429316] [2023-11-21 22:10:28,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:28,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:28,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:10:28,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:28,804 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. cyclomatic complexity: 18 Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 22:10:28,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:28,829 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2023-11-21 22:10:28,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 80 transitions. [2023-11-21 22:10:28,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2023-11-21 22:10:28,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 74 states and 76 transitions. [2023-11-21 22:10:28,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2023-11-21 22:10:28,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2023-11-21 22:10:28,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 76 transitions. [2023-11-21 22:10:28,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:10:28,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 74 states and 76 transitions. [2023-11-21 22:10:28,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 76 transitions. [2023-11-21 22:10:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2023-11-21 22:10:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 67 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:10:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 70 transitions. [2023-11-21 22:10:28,840 INFO L240 hiAutomatonCegarLoop]: Abstraction has 68 states and 70 transitions. [2023-11-21 22:10:28,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:10:28,848 INFO L428 stractBuchiCegarLoop]: Abstraction has 68 states and 70 transitions. [2023-11-21 22:10:28,848 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-21 22:10:28,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 70 transitions. [2023-11-21 22:10:28,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2023-11-21 22:10:28,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:10:28,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:10:28,851 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 4, 4, 2, 2, 1, 1, 1, 1] [2023-11-21 22:10:28,851 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 4, 4, 2, 2, 1, 1] [2023-11-21 22:10:28,851 INFO L748 eck$LassoCheckResult]: Stem: 1686#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1687#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc0#1.base, main_#t~malloc0#1.offset, main_#t~malloc1#1.base, main_#t~malloc1#1.offset, main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~mem5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem4#1, main_~x0~0#1.base, main_~x0~0#1.offset, main_~x1~0#1.base, main_~x1~0#1.offset, main_~x2~0#1.base, main_~x2~0#1.offset, main_~x3~0#1.base, main_~x3~0#1.offset;call main_#t~malloc0#1.base, main_#t~malloc0#1.offset := #Ultimate.allocOnStack(4);main_~x0~0#1.base, main_~x0~0#1.offset := main_#t~malloc0#1.base, main_#t~malloc0#1.offset;call main_#t~malloc1#1.base, main_#t~malloc1#1.offset := #Ultimate.allocOnStack(4);main_~x1~0#1.base, main_~x1~0#1.offset := main_#t~malloc1#1.base, main_#t~malloc1#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x2~0#1.base, main_~x2~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~x3~0#1.base, main_~x3~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(0, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1689#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1712#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1711#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1710#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1709#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1708#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1707#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1684#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1685#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1680#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1681#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1704#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1698#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1696#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1694#L24 assume 0 == main_#t~mem7#1;havoc main_#t~mem7#1;call write~int#0(1, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1695#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1703#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1720#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1718#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1716#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1713#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1690#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1682#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1683#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1688#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1719#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1717#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1714#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1715#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1692#L24 assume !(0 == main_#t~mem7#1);havoc main_#t~mem7#1;call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(1, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1693#L24-2 [2023-11-21 22:10:28,851 INFO L750 eck$LassoCheckResult]: Loop: 1693#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1721#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1744#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1742#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1740#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1738#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1736#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1734#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1732#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1678#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1679#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1728#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1726#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1705#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1706#L24 assume 0 == main_#t~mem7#1;havoc main_#t~mem7#1;call write~int#0(1, main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1722#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1745#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1743#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1741#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1739#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1737#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1735#L20 assume 0 == main_#t~mem6#1;havoc main_#t~mem6#1;call write~int#1(1, main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1733#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1731#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1730#L16 assume 0 == main_#t~mem5#1;havoc main_#t~mem5#1;call write~int#2(1, main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1729#L24-2 call main_#t~mem4#1 := read~int#3(main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1727#L15-1 assume !!(0 == main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#2(main_~x0~0#1.base, main_~x0~0#1.offset, 4); 1725#L16 assume !(0 == main_#t~mem5#1);havoc main_#t~mem5#1;call write~int#2(0, main_~x0~0#1.base, main_~x0~0#1.offset, 4);call main_#t~mem6#1 := read~int#1(main_~x1~0#1.base, main_~x1~0#1.offset, 4); 1724#L20 assume !(0 == main_#t~mem6#1);havoc main_#t~mem6#1;call write~int#1(0, main_~x1~0#1.base, main_~x1~0#1.offset, 4);call main_#t~mem7#1 := read~int#0(main_~x2~0#1.base, main_~x2~0#1.offset, 4); 1723#L24 assume !(0 == main_#t~mem7#1);havoc main_#t~mem7#1;call write~int#0(0, main_~x2~0#1.base, main_~x2~0#1.offset, 4);call write~int#3(1, main_~x3~0#1.base, main_~x3~0#1.offset, 4); 1693#L24-2 [2023-11-21 22:10:28,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:28,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1450650533, now seen corresponding path program 1 times [2023-11-21 22:10:28,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:28,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773749619] [2023-11-21 22:10:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:28,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,887 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:28,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:28,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1011439773, now seen corresponding path program 1 times [2023-11-21 22:10:28,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:28,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10038802] [2023-11-21 22:10:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:28,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:28,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash 783342599, now seen corresponding path program 2 times [2023-11-21 22:10:28,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:28,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522781057] [2023-11-21 22:10:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:28,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 227 proven. 20 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:10:29,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:29,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522781057] [2023-11-21 22:10:29,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522781057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:10:29,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099375438] [2023-11-21 22:10:29,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:10:29,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:10:29,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:29,468 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:10:29,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-21 22:10:29,679 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:10:29,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:10:29,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:10:29,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:10:29,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:10:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 223 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-21 22:10:29,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:10:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 223 proven. 7 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-21 22:10:29,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099375438] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:10:29,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:10:29,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2023-11-21 22:10:29,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392388280] [2023-11-21 22:10:29,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:10:33,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:33,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:10:33,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:10:33,584 INFO L87 Difference]: Start difference. First operand 68 states and 70 transitions. cyclomatic complexity: 4 Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 22:10:33,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:33,654 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2023-11-21 22:10:33,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 40 transitions. [2023-11-21 22:10:33,654 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:10:33,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2023-11-21 22:10:33,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 22:10:33,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 22:10:33,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 22:10:33,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:10:33,655 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:10:33,656 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:10:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:10:33,656 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:10:33,657 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-21 22:10:33,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:10:33,657 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:10:33,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 22:10:33,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:10:33 BoogieIcfgContainer [2023-11-21 22:10:33,665 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:10:33,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:10:33,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:10:33,666 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:10:33,667 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:06" (3/4) ... [2023-11-21 22:10:33,669 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:10:33,670 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:10:33,671 INFO L158 Benchmark]: Toolchain (without parser) took 28231.97ms. Allocated memory was 163.6MB in the beginning and 302.0MB in the end (delta: 138.4MB). Free memory was 115.3MB in the beginning and 201.1MB in the end (delta: -85.8MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-11-21 22:10:33,671 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 163.6MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:10:33,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.40ms. Allocated memory is still 163.6MB. Free memory was 115.0MB in the beginning and 105.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:10:33,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.10ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 103.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:10:33,672 INFO L158 Benchmark]: Boogie Preprocessor took 39.55ms. Allocated memory is still 163.6MB. Free memory was 103.8MB in the beginning and 102.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:10:33,672 INFO L158 Benchmark]: RCFGBuilder took 432.26ms. Allocated memory is still 163.6MB. Free memory was 101.7MB in the beginning and 88.4MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:10:33,673 INFO L158 Benchmark]: BuchiAutomizer took 27482.99ms. Allocated memory was 163.6MB in the beginning and 302.0MB in the end (delta: 138.4MB). Free memory was 88.4MB in the beginning and 201.1MB in the end (delta: -112.7MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-11-21 22:10:33,673 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 302.0MB. Free memory is still 201.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:10:33,675 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 163.6MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.40ms. Allocated memory is still 163.6MB. Free memory was 115.0MB in the beginning and 105.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.10ms. Allocated memory is still 163.6MB. Free memory was 105.2MB in the beginning and 103.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.55ms. Allocated memory is still 163.6MB. Free memory was 103.8MB in the beginning and 102.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.26ms. Allocated memory is still 163.6MB. Free memory was 101.7MB in the beginning and 88.4MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 27482.99ms. Allocated memory was 163.6MB in the beginning and 302.0MB in the end (delta: 138.4MB). Free memory was 88.4MB in the beginning and 201.1MB in the end (delta: -112.7MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 302.0MB. Free memory is still 201.1MB. 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 #memory_int#2[~x0~0!base][~x0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~x0~0!base][~x0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#0[~x2~0!base][~x2~0!offset] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (6 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function null and consists of 5 locations. One deterministic module has affine ranking function null and consists of 3 locations. One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function null and consists of 4 locations. 6 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 27.4s and 11 iterations. TraceHistogramMax:8. Analysis of lassos took 26.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 19 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 22/22 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 212 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 93 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU4 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital273 mio100 ax100 hnf100 lsp94 ukn73 mio100 lsp24 div100 bol100 ite100 ukn100 eq160 hnf90 smp100 dnf101 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms 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 22:10:33,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-21 22:10:33,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-21 22:10:34,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:34,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cea1e1-7530-4232-a1cd-f9ce6f9d8ce6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE