./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/Parts.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme --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 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:57:17,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:57:17,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-26 11:57:17,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:57:17,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:57:17,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:57:17,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:57:17,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:57:17,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:57:17,892 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:57:17,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:57:17,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:57:17,895 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:57:17,898 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 11:57:17,898 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 11:57:17,899 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 11:57:17,899 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 11:57:17,899 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 11:57:17,900 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 11:57:17,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:57:17,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 11:57:17,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:57:17,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:57:17,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 11:57:17,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 11:57:17,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 11:57:17,904 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:57:17,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:57:17,905 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 11:57:17,905 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:57:17,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:57:17,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:57:17,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:57:17,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:57:17,908 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 11:57:17,909 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_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2023-11-26 11:57:18,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:57:18,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:57:18,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:57:18,294 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:57:18,295 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:57:18,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/termination-numeric/Parts.c [2023-11-26 11:57:22,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:57:22,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:57:22,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/sv-benchmarks/c/termination-numeric/Parts.c [2023-11-26 11:57:22,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/data/b94346cf3/3983d0c479f44a90812dd87f4e74c281/FLAGfa229bb0e [2023-11-26 11:57:22,328 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/data/b94346cf3/3983d0c479f44a90812dd87f4e74c281 [2023-11-26 11:57:22,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:57:22,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:57:22,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:22,347 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:57:22,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:57:22,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,359 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 26.11 11:57:22, skipping insertion in model container [2023-11-26 11:57:22,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,388 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:57:22,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:22,628 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:57:22,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:57:22,670 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:57:22,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22 WrapperNode [2023-11-26 11:57:22,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:57:22,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:22,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:57:22,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:57:22,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,716 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2023-11-26 11:57:22,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:57:22,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:57:22,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:57:22,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:57:22,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,743 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-26 11:57:22,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:57:22,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:57:22,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:57:22,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:57:22,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (1/1) ... [2023-11-26 11:57:22,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:22,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:22,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:22,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 11:57:22,884 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2023-11-26 11:57:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2023-11-26 11:57:22,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:57:22,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:57:22,972 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:57:22,979 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:57:23,141 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:57:23,155 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:57:23,155 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:57:23,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:23 BoogieIcfgContainer [2023-11-26 11:57:23,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:57:23,159 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 11:57:23,160 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 11:57:23,165 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 11:57:23,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:57:23,167 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 11:57:22" (1/3) ... [2023-11-26 11:57:23,168 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc32005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:57:23, skipping insertion in model container [2023-11-26 11:57:23,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:57:23,169 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:57:22" (2/3) ... [2023-11-26 11:57:23,170 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dc32005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 11:57:23, skipping insertion in model container [2023-11-26 11:57:23,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 11:57:23,170 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:57:23" (3/3) ... [2023-11-26 11:57:23,172 INFO L332 chiAutomizerObserver]: Analyzing ICFG Parts.c [2023-11-26 11:57:23,245 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 11:57:23,245 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 11:57:23,245 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 11:57:23,247 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 11:57:23,247 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 11:57:23,248 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 11:57:23,248 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 11:57:23,248 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 11:57:23,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:57:23,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-11-26 11:57:23,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:23,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:23,289 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:57:23,290 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 11:57:23,290 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 11:57:23,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:57:23,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-11-26 11:57:23,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:23,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:23,296 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:57:23,297 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 11:57:23,308 INFO L748 eck$LassoCheckResult]: Stem: 25#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 24#L28true assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 5#L31true assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 16#L34-3true [2023-11-26 11:57:23,308 INFO L750 eck$LassoCheckResult]: Loop: 16#L34-3true assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 8#L35-3true assume !true; 18#L35-4true havoc main_~q~0#1; 7#L34-2true main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 16#L34-3true [2023-11-26 11:57:23,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 1 times [2023-11-26 11:57:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:23,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440596312] [2023-11-26 11:57:23,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:23,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:23,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:23,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:23,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:23,515 INFO L85 PathProgramCache]: Analyzing trace with hash 2138065, now seen corresponding path program 1 times [2023-11-26 11:57:23,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:23,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108332352] [2023-11-26 11:57:23,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:23,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:23,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:23,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:23,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108332352] [2023-11-26 11:57:23,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108332352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:23,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:23,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:57:23,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864663625] [2023-11-26 11:57:23,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:23,618 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 11:57:23,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:23,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:57:23,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:57:23,680 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:23,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:23,696 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2023-11-26 11:57:23,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 35 transitions. [2023-11-26 11:57:23,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-11-26 11:57:23,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 22 states and 29 transitions. [2023-11-26 11:57:23,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2023-11-26 11:57:23,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-26 11:57:23,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2023-11-26 11:57:23,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:23,733 INFO L218 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2023-11-26 11:57:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2023-11-26 11:57:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-26 11:57:23,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:57:23,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2023-11-26 11:57:23,780 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2023-11-26 11:57:23,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:57:23,788 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2023-11-26 11:57:23,788 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 11:57:23,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2023-11-26 11:57:23,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-11-26 11:57:23,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:23,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:23,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:57:23,794 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-26 11:57:23,795 INFO L748 eck$LassoCheckResult]: Stem: 80#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 73#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 74#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 71#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 72#L34-3 [2023-11-26 11:57:23,796 INFO L750 eck$LassoCheckResult]: Loop: 72#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 75#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 69#L35-4 havoc main_~q~0#1; 70#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 72#L34-3 [2023-11-26 11:57:23,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 2 times [2023-11-26 11:57:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:23,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449329647] [2023-11-26 11:57:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:23,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:23,825 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:23,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:23,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:23,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2130377, now seen corresponding path program 1 times [2023-11-26 11:57:23,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:23,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254310417] [2023-11-26 11:57:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:23,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:23,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:23,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:23,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:23,881 INFO L85 PathProgramCache]: Analyzing trace with hash -821894416, now seen corresponding path program 1 times [2023-11-26 11:57:23,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:23,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353826069] [2023-11-26 11:57:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:23,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:23,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353826069] [2023-11-26 11:57:23,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353826069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:23,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:23,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:57:23,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82114060] [2023-11-26 11:57:23,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:24,071 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:24,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:24,072 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:24,072 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:24,072 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:24,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:24,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:24,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:24,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration2_Loop [2023-11-26 11:57:24,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:24,073 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:24,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:24,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:24,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:24,169 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:24,170 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:24,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:24,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:24,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:24,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:24,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:24,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 11:57:24,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-26 11:57:24,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:24,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:24,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:24,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 11:57:24,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:24,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:24,322 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:24,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:24,326 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:24,326 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:24,326 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:24,327 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:24,327 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:24,327 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:24,327 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:24,327 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:24,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration2_Loop [2023-11-26 11:57:24,327 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:24,327 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:24,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:24,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:24,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:24,426 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:24,432 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:24,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:24,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:24,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:24,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 11:57:24,447 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 [2023-11-26 11:57:24,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:24,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:24,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:24,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:24,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:24,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:24,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:24,477 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:24,486 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:24,486 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 11:57:24,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:24,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:24,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:24,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 11:57:24,545 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:24,545 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:24,546 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:24,547 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = -1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2023-11-26 11:57:24,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:24,560 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:24,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:57:24,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:24,663 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:24,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:24,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:24,790 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 [2023-11-26 11:57:24,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:24,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 42 transitions. Complement of second has 9 states. [2023-11-26 11:57:24,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-11-26 11:57:24,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-26 11:57:24,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:24,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-26 11:57:24,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:24,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-26 11:57:24,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:24,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2023-11-26 11:57:24,940 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2023-11-26 11:57:24,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 39 transitions. [2023-11-26 11:57:24,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-11-26 11:57:24,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-26 11:57:24,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 39 transitions. [2023-11-26 11:57:24,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:24,945 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 39 transitions. [2023-11-26 11:57:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 39 transitions. [2023-11-26 11:57:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-11-26 11:57:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 22 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:57:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 37 transitions. [2023-11-26 11:57:24,951 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 37 transitions. [2023-11-26 11:57:24,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:57:24,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:57:24,953 INFO L87 Difference]: Start difference. First operand 28 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:25,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:25,004 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2023-11-26 11:57:25,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2023-11-26 11:57:25,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2023-11-26 11:57:25,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 32 transitions. [2023-11-26 11:57:25,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2023-11-26 11:57:25,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-11-26 11:57:25,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2023-11-26 11:57:25,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:25,018 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-11-26 11:57:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2023-11-26 11:57:25,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2023-11-26 11:57:25,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 17 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:57:25,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2023-11-26 11:57:25,027 INFO L240 hiAutomatonCegarLoop]: Abstraction has 23 states and 30 transitions. [2023-11-26 11:57:25,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:57:25,028 INFO L428 stractBuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2023-11-26 11:57:25,029 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-26 11:57:25,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2023-11-26 11:57:25,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2023-11-26 11:57:25,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:25,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:25,031 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-26 11:57:25,032 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:25,032 INFO L748 eck$LassoCheckResult]: Stem: 244#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 237#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 238#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 235#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 236#L34-3 [2023-11-26 11:57:25,032 INFO L750 eck$LassoCheckResult]: Loop: 236#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 239#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 225#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 232#$Ultimate##0 ~p := #in~p;~q := #in~q; 243#L20 assume ~p <= 0;#res := 1; 242#partsFINAL assume true; 224#partsEXIT >#72#return; 230#L36-1 havoc main_#t~ret8#1; 245#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 246#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 233#L35-4 havoc main_~q~0#1; 234#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 236#L34-3 [2023-11-26 11:57:25,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 3 times [2023-11-26 11:57:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:25,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580044931] [2023-11-26 11:57:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,040 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:25,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:25,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1637259946, now seen corresponding path program 1 times [2023-11-26 11:57:25,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:25,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167350607] [2023-11-26 11:57:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:25,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,066 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,098 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:25,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash -272126083, now seen corresponding path program 1 times [2023-11-26 11:57:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:25,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768689679] [2023-11-26 11:57:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:25,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:25,335 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:25,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:25,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:25,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:25,336 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:25,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:25,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:25,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration3_Loop [2023-11-26 11:57:25,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:25,337 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:25,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,414 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:25,414 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:25,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:25,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:25,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:25,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:25,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 11:57:25,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:25,457 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:25,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:25,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:25,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:25,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:25,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:25,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 11:57:25,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:25,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:25,517 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:25,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:25,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:25,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 11:57:25,562 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:25,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-26 11:57:25,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:25,593 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:25,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:25,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:25,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:25,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:25,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:25,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:25,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration3_Loop [2023-11-26 11:57:25,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:25,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:25,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,621 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:25,687 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:25,687 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:25,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:25,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:25,705 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 [2023-11-26 11:57:25,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-26 11:57:25,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:25,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:25,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:25,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:25,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:25,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:25,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:25,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:25,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:25,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:25,738 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:25,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-26 11:57:25,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:57:25,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:25,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:25,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:25,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:25,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:25,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:25,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:25,783 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:25,786 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:25,787 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:57:25,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:25,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:25,792 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:25,805 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:25,805 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:25,805 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:25,805 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = -2*ULTIMATE.start_main_~p~0#1 + 1 Supporting invariants [] [2023-11-26 11:57:25,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-26 11:57:25,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:25,816 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:25,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:25,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:57:25,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:25,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:25,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:26,050 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-26 11:57:26,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:26,378 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 9. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 147 states and 216 transitions. Complement of second has 28 states. [2023-11-26 11:57:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 61 transitions. [2023-11-26 11:57:26,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 61 transitions. Stem has 4 letters. Loop has 12 letters. [2023-11-26 11:57:26,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:26,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 61 transitions. Stem has 16 letters. Loop has 12 letters. [2023-11-26 11:57:26,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:26,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 61 transitions. Stem has 4 letters. Loop has 24 letters. [2023-11-26 11:57:26,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:26,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 216 transitions. [2023-11-26 11:57:26,392 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2023-11-26 11:57:26,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 145 states and 214 transitions. [2023-11-26 11:57:26,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2023-11-26 11:57:26,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2023-11-26 11:57:26,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 214 transitions. [2023-11-26 11:57:26,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:26,400 INFO L218 hiAutomatonCegarLoop]: Abstraction has 145 states and 214 transitions. [2023-11-26 11:57:26,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 214 transitions. [2023-11-26 11:57:26,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 136. [2023-11-26 11:57:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 91 states have internal predecessors, (125), 28 states have call successors, (28), 8 states have call predecessors, (28), 12 states have return successors, (48), 36 states have call predecessors, (48), 28 states have call successors, (48) [2023-11-26 11:57:26,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 201 transitions. [2023-11-26 11:57:26,424 INFO L240 hiAutomatonCegarLoop]: Abstraction has 136 states and 201 transitions. [2023-11-26 11:57:26,424 INFO L428 stractBuchiCegarLoop]: Abstraction has 136 states and 201 transitions. [2023-11-26 11:57:26,424 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-26 11:57:26,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 201 transitions. [2023-11-26 11:57:26,429 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 19 [2023-11-26 11:57:26,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:26,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:26,430 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 11:57:26,430 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:26,431 INFO L748 eck$LassoCheckResult]: Stem: 550#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 528#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 529#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 526#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 527#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 535#L35-3 [2023-11-26 11:57:26,431 INFO L750 eck$LassoCheckResult]: Loop: 535#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 536#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 565#$Ultimate##0 ~p := #in~p;~q := #in~q; 586#L20 assume !(~p <= 0); 569#L21 assume ~q <= 0;#res := 0; 567#partsFINAL assume true; 564#partsEXIT >#72#return; 562#L36-1 havoc main_#t~ret8#1; 561#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 560#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 522#L35-4 havoc main_~q~0#1; 523#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 533#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 535#L35-3 [2023-11-26 11:57:26,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:26,431 INFO L85 PathProgramCache]: Analyzing trace with hash 46827647, now seen corresponding path program 1 times [2023-11-26 11:57:26,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:26,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391465151] [2023-11-26 11:57:26,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:26,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:26,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:26,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:26,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 843900794, now seen corresponding path program 1 times [2023-11-26 11:57:26,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:26,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794768503] [2023-11-26 11:57:26,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:26,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:57:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:26,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:26,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794768503] [2023-11-26 11:57:26,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794768503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:26,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:26,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:57:26,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833077485] [2023-11-26 11:57:26,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:26,714 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 11:57:26,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:26,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:57:26,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:57:26,715 INFO L87 Difference]: Start difference. First operand 136 states and 201 transitions. cyclomatic complexity: 70 Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:27,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:27,144 INFO L93 Difference]: Finished difference Result 257 states and 426 transitions. [2023-11-26 11:57:27,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 257 states and 426 transitions. [2023-11-26 11:57:27,172 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2023-11-26 11:57:27,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 257 states to 248 states and 417 transitions. [2023-11-26 11:57:27,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2023-11-26 11:57:27,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2023-11-26 11:57:27,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 417 transitions. [2023-11-26 11:57:27,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:27,203 INFO L218 hiAutomatonCegarLoop]: Abstraction has 248 states and 417 transitions. [2023-11-26 11:57:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 417 transitions. [2023-11-26 11:57:27,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 217. [2023-11-26 11:57:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 147 states have (on average 1.251700680272109) internal successors, (184), 147 states have internal predecessors, (184), 40 states have call successors, (40), 12 states have call predecessors, (40), 30 states have return successors, (146), 57 states have call predecessors, (146), 40 states have call successors, (146) [2023-11-26 11:57:27,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 370 transitions. [2023-11-26 11:57:27,263 INFO L240 hiAutomatonCegarLoop]: Abstraction has 217 states and 370 transitions. [2023-11-26 11:57:27,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:57:27,264 INFO L428 stractBuchiCegarLoop]: Abstraction has 217 states and 370 transitions. [2023-11-26 11:57:27,264 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-26 11:57:27,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 217 states and 370 transitions. [2023-11-26 11:57:27,269 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2023-11-26 11:57:27,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:27,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:27,270 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-26 11:57:27,271 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:27,271 INFO L748 eck$LassoCheckResult]: Stem: 970#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 931#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 932#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 929#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 930#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 952#L35-3 [2023-11-26 11:57:27,271 INFO L750 eck$LassoCheckResult]: Loop: 952#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 953#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 987#$Ultimate##0 ~p := #in~p;~q := #in~q; 1030#L20 assume !(~p <= 0); 1025#L21 assume ~q <= 0;#res := 0; 1026#partsFINAL assume true; 1061#partsEXIT >#72#return; 1060#L36-1 havoc main_#t~ret8#1; 971#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 952#L35-3 [2023-11-26 11:57:27,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:27,272 INFO L85 PathProgramCache]: Analyzing trace with hash 46827647, now seen corresponding path program 2 times [2023-11-26 11:57:27,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:27,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586716751] [2023-11-26 11:57:27,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:27,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:27,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:27,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:27,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:27,283 INFO L85 PathProgramCache]: Analyzing trace with hash 59543106, now seen corresponding path program 1 times [2023-11-26 11:57:27,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:27,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894223655] [2023-11-26 11:57:27,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:27,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:27,291 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:27,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:27,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:27,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1002392700, now seen corresponding path program 1 times [2023-11-26 11:57:27,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:27,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691373687] [2023-11-26 11:57:27,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:27,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:27,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-26 11:57:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:57:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:27,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691373687] [2023-11-26 11:57:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691373687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:27,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:27,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:27,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519096333] [2023-11-26 11:57:27,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:27,627 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:27,627 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:27,627 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:27,628 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:27,628 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:27,628 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:27,628 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:27,628 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:27,628 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration5_Loop [2023-11-26 11:57:27,629 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:27,629 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:27,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,650 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,702 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:27,702 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:27,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:27,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:27,704 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:27,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-26 11:57:27,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:27,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:27,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:27,735 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:27,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:27,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:27,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:27,747 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:27,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-26 11:57:27,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:27,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:27,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:27,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:27,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:27,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:27,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-26 11:57:27,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:27,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:27,858 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:27,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:27,863 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:27,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:27,864 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:27,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:27,864 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:27,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:27,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:27,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:27,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration5_Loop [2023-11-26 11:57:27,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:27,864 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:27,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:27,929 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:27,929 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:27,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:27,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:27,931 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:27,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-26 11:57:27,940 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 [2023-11-26 11:57:27,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:27,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:27,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:27,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:27,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:27,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:27,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:27,971 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:27,982 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:27,983 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:57:27,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:27,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:27,984 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:27,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-26 11:57:27,990 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:27,990 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:27,990 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:27,990 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = -2*ULTIMATE.start_main_~q~0#1 + 1 Supporting invariants [] [2023-11-26 11:57:28,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:28,001 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:28,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:28,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:57:28,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:28,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:28,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:28,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:28,185 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-11-26 11:57:28,186 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 217 states and 370 transitions. cyclomatic complexity: 158 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:28,446 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 217 states and 370 transitions. cyclomatic complexity: 158. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 884 states and 1624 transitions. Complement of second has 25 states. [2023-11-26 11:57:28,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:28,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2023-11-26 11:57:28,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 5 letters. Loop has 9 letters. [2023-11-26 11:57:28,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:28,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 14 letters. Loop has 9 letters. [2023-11-26 11:57:28,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:28,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 38 transitions. Stem has 5 letters. Loop has 18 letters. [2023-11-26 11:57:28,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:28,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 884 states and 1624 transitions. [2023-11-26 11:57:28,492 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 59 [2023-11-26 11:57:28,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 884 states to 830 states and 1523 transitions. [2023-11-26 11:57:28,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2023-11-26 11:57:28,530 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 247 [2023-11-26 11:57:28,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 830 states and 1523 transitions. [2023-11-26 11:57:28,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:28,546 INFO L218 hiAutomatonCegarLoop]: Abstraction has 830 states and 1523 transitions. [2023-11-26 11:57:28,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states and 1523 transitions. [2023-11-26 11:57:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 761. [2023-11-26 11:57:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 493 states have (on average 1.2373225152129816) internal successors, (610), 494 states have internal predecessors, (610), 154 states have call successors, (154), 43 states have call predecessors, (154), 114 states have return successors, (650), 223 states have call predecessors, (650), 151 states have call successors, (650) [2023-11-26 11:57:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1414 transitions. [2023-11-26 11:57:28,681 INFO L240 hiAutomatonCegarLoop]: Abstraction has 761 states and 1414 transitions. [2023-11-26 11:57:28,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:57:28,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:57:28,683 INFO L87 Difference]: Start difference. First operand 761 states and 1414 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:28,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:28,791 INFO L93 Difference]: Finished difference Result 653 states and 998 transitions. [2023-11-26 11:57:28,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 653 states and 998 transitions. [2023-11-26 11:57:28,806 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 56 [2023-11-26 11:57:28,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 653 states to 316 states and 459 transitions. [2023-11-26 11:57:28,815 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2023-11-26 11:57:28,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2023-11-26 11:57:28,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 459 transitions. [2023-11-26 11:57:28,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:28,820 INFO L218 hiAutomatonCegarLoop]: Abstraction has 316 states and 459 transitions. [2023-11-26 11:57:28,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 459 transitions. [2023-11-26 11:57:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 301. [2023-11-26 11:57:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 200 states have (on average 1.235) internal successors, (247), 203 states have internal predecessors, (247), 69 states have call successors, (69), 27 states have call predecessors, (69), 32 states have return successors, (128), 70 states have call predecessors, (128), 61 states have call successors, (128) [2023-11-26 11:57:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 444 transitions. [2023-11-26 11:57:28,838 INFO L240 hiAutomatonCegarLoop]: Abstraction has 301 states and 444 transitions. [2023-11-26 11:57:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:28,841 INFO L428 stractBuchiCegarLoop]: Abstraction has 301 states and 444 transitions. [2023-11-26 11:57:28,841 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-26 11:57:28,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 301 states and 444 transitions. [2023-11-26 11:57:28,845 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 56 [2023-11-26 11:57:28,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:28,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:28,847 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:28,847 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:28,847 INFO L748 eck$LassoCheckResult]: Stem: 3581#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3553#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3554#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3548#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 3549#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 3593#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 3677#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 3804#$Ultimate##0 ~p := #in~p;~q := #in~q; 3803#L20 assume ~p <= 0;#res := 1; 3687#partsFINAL assume true; 3676#partsEXIT >#72#return; 3588#L36-1 [2023-11-26 11:57:28,847 INFO L750 eck$LassoCheckResult]: Loop: 3588#L36-1 havoc main_#t~ret8#1; 3582#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 3566#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 3540#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 3550#$Ultimate##0 ~p := #in~p;~q := #in~q; 3688#L20 assume ~p <= 0;#res := 1; 3689#partsFINAL assume true; 3805#partsEXIT >#72#return; 3588#L36-1 [2023-11-26 11:57:28,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:28,848 INFO L85 PathProgramCache]: Analyzing trace with hash 622347504, now seen corresponding path program 1 times [2023-11-26 11:57:28,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:28,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289758450] [2023-11-26 11:57:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:28,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:28,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:28,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:28,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:28,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1415064404, now seen corresponding path program 1 times [2023-11-26 11:57:28,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:28,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173834583] [2023-11-26 11:57:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:28,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:28,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:28,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:28,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:28,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2060456259, now seen corresponding path program 1 times [2023-11-26 11:57:28,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:28,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193203436] [2023-11-26 11:57:28,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:28,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:28,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:28,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:29,017 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:29,017 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:29,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:29,018 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:29,018 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:29,018 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,018 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:29,018 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:29,019 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration6_Loop [2023-11-26 11:57:29,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:29,019 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:29,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,082 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:29,083 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:29,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,084 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-26 11:57:29,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:29,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:29,147 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:29,147 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret8#1=1} Honda state: {ULTIMATE.start_main_#t~ret8#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:29,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,158 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-26 11:57:29,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:29,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:29,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:29,211 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:29,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,225 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:29,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:29,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-26 11:57:29,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:29,254 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~p~0#1=0} Honda state: {ULTIMATE.start_main_~p~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:29,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-26 11:57:29,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,261 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-26 11:57:29,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:29,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:29,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,317 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-26 11:57:29,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:29,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:29,775 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:29,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,780 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:29,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:29,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:29,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:29,780 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:29,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:29,780 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:29,780 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration6_Loop [2023-11-26 11:57:29,780 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:29,780 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:29,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,799 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:29,841 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:29,841 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:29,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,843 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:57:29,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-26 11:57:29,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:29,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:29,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:29,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:29,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:29,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:29,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:29,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:29,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,883 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,887 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 [2023-11-26 11:57:29,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-26 11:57:29,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:29,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:29,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:29,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:29,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:29,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:29,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:29,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:29,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-26 11:57:29,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,908 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-26 11:57:29,912 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 [2023-11-26 11:57:29,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:29,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:29,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:29,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:29,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:29,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:29,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:29,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:29,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:29,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:29,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:29,943 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:29,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-26 11:57:29,946 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 [2023-11-26 11:57:29,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:29,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:29,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:29,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:29,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:29,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:29,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:29,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:30,004 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:30,004 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:57:30,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:30,007 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:30,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-26 11:57:30,017 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:30,017 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:30,017 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:30,017 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~q~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-26 11:57:30,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:30,022 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:30,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:30,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:57:30,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:30,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:30,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:30,172 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:30,172 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 301 states and 444 transitions. cyclomatic complexity: 151 Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:57:30,277 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 301 states and 444 transitions. cyclomatic complexity: 151. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 442 states and 656 transitions. Complement of second has 13 states. [2023-11-26 11:57:30,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:57:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 47 transitions. [2023-11-26 11:57:30,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 11 letters. Loop has 8 letters. [2023-11-26 11:57:30,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:30,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 19 letters. Loop has 8 letters. [2023-11-26 11:57:30,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:30,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 47 transitions. Stem has 11 letters. Loop has 16 letters. [2023-11-26 11:57:30,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:30,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 442 states and 656 transitions. [2023-11-26 11:57:30,294 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 75 [2023-11-26 11:57:30,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 442 states to 358 states and 524 transitions. [2023-11-26 11:57:30,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2023-11-26 11:57:30,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 227 [2023-11-26 11:57:30,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 358 states and 524 transitions. [2023-11-26 11:57:30,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:30,305 INFO L218 hiAutomatonCegarLoop]: Abstraction has 358 states and 524 transitions. [2023-11-26 11:57:30,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states and 524 transitions. [2023-11-26 11:57:30,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-26 11:57:30,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 237 states have (on average 1.2151898734177216) internal successors, (288), 237 states have internal predecessors, (288), 81 states have call successors, (83), 34 states have call predecessors, (83), 39 states have return successors, (152), 85 states have call predecessors, (152), 71 states have call successors, (152) [2023-11-26 11:57:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 523 transitions. [2023-11-26 11:57:30,321 INFO L240 hiAutomatonCegarLoop]: Abstraction has 357 states and 523 transitions. [2023-11-26 11:57:30,321 INFO L428 stractBuchiCegarLoop]: Abstraction has 357 states and 523 transitions. [2023-11-26 11:57:30,321 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-26 11:57:30,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 357 states and 523 transitions. [2023-11-26 11:57:30,325 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 75 [2023-11-26 11:57:30,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:30,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:30,326 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:30,326 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 11:57:30,326 INFO L748 eck$LassoCheckResult]: Stem: 4426#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4379#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4380#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4377#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 4378#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 4397#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 4381#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 4382#$Ultimate##0 ~p := #in~p;~q := #in~q; 4533#L20 assume !(~p <= 0); 4534#L21 assume !(~q <= 0); 4648#L22 assume ~q > ~p; 4420#L22-1 call #t~ret0 := parts(~p, ~p);< 4665#$Ultimate##0 [2023-11-26 11:57:30,326 INFO L750 eck$LassoCheckResult]: Loop: 4665#$Ultimate##0 ~p := #in~p;~q := #in~q; 4677#L20 assume !(~p <= 0); 4654#L21 assume !(~q <= 0); 4653#L22 assume ~q > ~p; 4416#L22-1 call #t~ret0 := parts(~p, ~p);< 4665#$Ultimate##0 [2023-11-26 11:57:30,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2112921795, now seen corresponding path program 1 times [2023-11-26 11:57:30,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:30,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560847054] [2023-11-26 11:57:30,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:30,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:30,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:30,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560847054] [2023-11-26 11:57:30,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560847054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:30,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:30,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:30,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473568029] [2023-11-26 11:57:30,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:30,396 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:57:30,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash 28756409, now seen corresponding path program 1 times [2023-11-26 11:57:30,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:30,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486881215] [2023-11-26 11:57:30,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:30,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:30,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:30,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:30,475 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:30,475 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:30,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:30,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:30,475 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:30,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:30,476 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:30,476 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration7_Loop [2023-11-26 11:57:30,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:30,476 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:30,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,541 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:30,541 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:30,542 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:30,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:30,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:30,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-26 11:57:30,579 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:30,579 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~q=0} Honda state: {parts_~q=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:30,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:30,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:30,585 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:30,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:30,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:30,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-26 11:57:30,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:30,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:30,633 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:30,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:30,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:30,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-26 11:57:30,863 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:30,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:30,873 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:30,873 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:30,873 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:30,873 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:30,873 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:30,873 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:30,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:30,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration7_Loop [2023-11-26 11:57:30,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:30,873 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:30,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:30,942 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:30,942 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:30,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:30,944 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:30,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-26 11:57:30,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:30,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:30,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:30,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:30,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:30,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-26 11:57:30,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:30,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:30,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:30,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:30,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:30,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:30,996 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:31,001 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 [2023-11-26 11:57:31,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:31,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:31,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:31,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:31,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:31,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-26 11:57:31,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:31,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:31,031 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:31,045 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:31,045 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 11:57:31,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:31,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:31,048 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:31,050 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:31,050 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:31,050 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:31,050 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_#in~q) = 1*parts_#in~q Supporting invariants [] [2023-11-26 11:57:31,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-26 11:57:31,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:31,059 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:31,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:31,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:31,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:31,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:31,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:31,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:31,182 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-11-26 11:57:31,182 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 357 states and 523 transitions. cyclomatic complexity: 175 Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 357 states and 523 transitions. cyclomatic complexity: 175. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1103 states and 2001 transitions. Complement of second has 41 states. [2023-11-26 11:57:31,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 42 transitions. [2023-11-26 11:57:31,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 12 letters. Loop has 5 letters. [2023-11-26 11:57:31,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:31,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 17 letters. Loop has 5 letters. [2023-11-26 11:57:31,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:31,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 12 letters. Loop has 10 letters. [2023-11-26 11:57:31,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:31,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1103 states and 2001 transitions. [2023-11-26 11:57:31,334 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 220 [2023-11-26 11:57:31,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1103 states to 1022 states and 1857 transitions. [2023-11-26 11:57:31,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 552 [2023-11-26 11:57:31,364 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 560 [2023-11-26 11:57:31,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1022 states and 1857 transitions. [2023-11-26 11:57:31,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:31,364 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1022 states and 1857 transitions. [2023-11-26 11:57:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states and 1857 transitions. [2023-11-26 11:57:31,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:31,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:31,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 917. [2023-11-26 11:57:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 595 states have (on average 1.2369747899159664) internal successors, (736), 627 states have internal predecessors, (736), 228 states have call successors, (230), 98 states have call predecessors, (230), 94 states have return successors, (613), 191 states have call predecessors, (613), 203 states have call successors, (613) [2023-11-26 11:57:31,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1579 transitions. [2023-11-26 11:57:31,452 INFO L240 hiAutomatonCegarLoop]: Abstraction has 917 states and 1579 transitions. [2023-11-26 11:57:31,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:31,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:57:31,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:57:31,453 INFO L87 Difference]: Start difference. First operand 917 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:31,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:31,506 INFO L93 Difference]: Finished difference Result 862 states and 1457 transitions. [2023-11-26 11:57:31,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 862 states and 1457 transitions. [2023-11-26 11:57:31,525 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 148 [2023-11-26 11:57:31,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 862 states to 859 states and 1454 transitions. [2023-11-26 11:57:31,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 456 [2023-11-26 11:57:31,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 456 [2023-11-26 11:57:31,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 859 states and 1454 transitions. [2023-11-26 11:57:31,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:31,555 INFO L218 hiAutomatonCegarLoop]: Abstraction has 859 states and 1454 transitions. [2023-11-26 11:57:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states and 1454 transitions. [2023-11-26 11:57:31,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 818. [2023-11-26 11:57:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 536 states have (on average 1.2257462686567164) internal successors, (657), 578 states have internal predecessors, (657), 186 states have call successors, (188), 84 states have call predecessors, (188), 96 states have return successors, (532), 155 states have call predecessors, (532), 169 states have call successors, (532) [2023-11-26 11:57:31,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1377 transitions. [2023-11-26 11:57:31,594 INFO L240 hiAutomatonCegarLoop]: Abstraction has 818 states and 1377 transitions. [2023-11-26 11:57:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:31,596 INFO L428 stractBuchiCegarLoop]: Abstraction has 818 states and 1377 transitions. [2023-11-26 11:57:31,596 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-26 11:57:31,596 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 818 states and 1377 transitions. [2023-11-26 11:57:31,605 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 144 [2023-11-26 11:57:31,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:31,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:31,608 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:31,608 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:31,609 INFO L748 eck$LassoCheckResult]: Stem: 7782#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 7743#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 7744#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 7741#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 7742#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 7757#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 7747#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 7748#$Ultimate##0 ~p := #in~p;~q := #in~q; 8444#L20 assume ~p <= 0;#res := 1; 8442#partsFINAL assume true; 8437#partsEXIT >#72#return; 8438#L36-1 havoc main_#t~ret8#1; 8313#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 8027#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 8026#L35-4 havoc main_~q~0#1; 8025#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8021#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 8019#L35-3 [2023-11-26 11:57:31,609 INFO L750 eck$LassoCheckResult]: Loop: 8019#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 8015#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 8017#$Ultimate##0 ~p := #in~p;~q := #in~q; 8023#L20 assume !(~p <= 0); 8020#L21 assume ~q <= 0;#res := 0; 8018#partsFINAL assume true; 8014#partsEXIT >#72#return; 8012#L36-1 havoc main_#t~ret8#1; 7970#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 7808#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 7800#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 7806#$Ultimate##0 ~p := #in~p;~q := #in~q; 7935#L20 assume !(~p <= 0); 7933#L21 assume !(~q <= 0); 7932#L22 assume !(~q > ~p); 7833#L23 call #t~ret1 := parts(~p - ~q, ~q);< 7892#$Ultimate##0 ~p := #in~p;~q := #in~q; 7908#L20 assume ~p <= 0;#res := 1; 7902#partsFINAL assume true; 7891#partsEXIT >#68#return; 7825#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 7881#$Ultimate##0 ~p := #in~p;~q := #in~q; 7929#L20 assume !(~p <= 0); 7909#L21 assume ~q <= 0;#res := 0; 7924#partsFINAL assume true; 8045#partsEXIT >#70#return; 7809#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 7807#partsFINAL assume true; 7805#partsEXIT >#72#return; 7803#L36-1 havoc main_#t~ret8#1; 7804#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 7799#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 7737#L35-4 havoc main_~q~0#1; 7738#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 8022#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 8019#L35-3 [2023-11-26 11:57:31,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:31,609 INFO L85 PathProgramCache]: Analyzing trace with hash 154026058, now seen corresponding path program 2 times [2023-11-26 11:57:31,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:31,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318669762] [2023-11-26 11:57:31,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:31,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:31,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:57:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:31,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:31,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318669762] [2023-11-26 11:57:31,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318669762] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:57:31,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615799058] [2023-11-26 11:57:31,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:57:31,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:31,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:31,703 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:31,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-26 11:57:31,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:57:31,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:57:31,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:31,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:31,855 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:57:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615799058] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:31,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:31,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-11-26 11:57:31,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518404139] [2023-11-26 11:57:31,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:31,918 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:57:31,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2047650597, now seen corresponding path program 1 times [2023-11-26 11:57:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:31,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480898169] [2023-11-26 11:57:31,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:31,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:32,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:57:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:57:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-26 11:57:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:32,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:57:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:32,118 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:57:32,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:32,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480898169] [2023-11-26 11:57:32,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480898169] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:57:32,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332375309] [2023-11-26 11:57:32,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:32,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:32,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:32,121 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:32,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-26 11:57:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:32,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:57:32,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:32,411 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:57:32,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:57:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:57:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332375309] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:32,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-11-26 11:57:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431921487] [2023-11-26 11:57:32,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:32,683 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 11:57:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:32,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:57:32,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:57:32,684 INFO L87 Difference]: Start difference. First operand 818 states and 1377 transitions. cyclomatic complexity: 579 Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 11 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:57:32,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:32,776 INFO L93 Difference]: Finished difference Result 898 states and 1491 transitions. [2023-11-26 11:57:32,777 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 898 states and 1491 transitions. [2023-11-26 11:57:32,795 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 160 [2023-11-26 11:57:32,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 898 states to 890 states and 1482 transitions. [2023-11-26 11:57:32,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 462 [2023-11-26 11:57:32,818 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 462 [2023-11-26 11:57:32,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 890 states and 1482 transitions. [2023-11-26 11:57:32,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:32,818 INFO L218 hiAutomatonCegarLoop]: Abstraction has 890 states and 1482 transitions. [2023-11-26 11:57:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states and 1482 transitions. [2023-11-26 11:57:32,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 817. [2023-11-26 11:57:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 535 states have (on average 1.2242990654205608) internal successors, (655), 578 states have internal predecessors, (655), 186 states have call successors, (188), 84 states have call predecessors, (188), 96 states have return successors, (532), 154 states have call predecessors, (532), 169 states have call successors, (532) [2023-11-26 11:57:32,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1375 transitions. [2023-11-26 11:57:32,870 INFO L240 hiAutomatonCegarLoop]: Abstraction has 817 states and 1375 transitions. [2023-11-26 11:57:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:57:32,871 INFO L428 stractBuchiCegarLoop]: Abstraction has 817 states and 1375 transitions. [2023-11-26 11:57:32,871 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-26 11:57:32,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 817 states and 1375 transitions. [2023-11-26 11:57:32,881 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 144 [2023-11-26 11:57:32,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:32,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:32,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:32,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:32,885 INFO L748 eck$LassoCheckResult]: Stem: 9867#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 9830#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 9831#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 9828#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 9829#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 10177#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 10172#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 10174#$Ultimate##0 ~p := #in~p;~q := #in~q; 10178#L20 assume ~p <= 0;#res := 1; 10175#partsFINAL assume true; 10171#partsEXIT >#72#return; 10143#L36-1 havoc main_#t~ret8#1; 10139#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 10137#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 10123#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 10125#$Ultimate##0 ~p := #in~p;~q := #in~q; 10127#L20 assume ~p <= 0;#res := 1; 10126#partsFINAL assume true; 10122#partsEXIT >#72#return; 10120#L36-1 havoc main_#t~ret8#1; 10118#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 10112#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 10113#L35-4 havoc main_~q~0#1; 10156#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 10157#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 10404#L35-3 [2023-11-26 11:57:32,886 INFO L750 eck$LassoCheckResult]: Loop: 10404#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 9832#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 9833#$Ultimate##0 ~p := #in~p;~q := #in~q; 9856#L20 assume !(~p <= 0); 9884#L21 assume ~q <= 0;#res := 0; 10620#partsFINAL assume true; 10619#partsEXIT >#72#return; 9880#L36-1 havoc main_#t~ret8#1; 9881#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 10376#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 9862#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 10323#$Ultimate##0 ~p := #in~p;~q := #in~q; 10321#L20 assume !(~p <= 0); 10319#L21 assume !(~q <= 0); 10318#L22 assume !(~q > ~p); 10238#L23 call #t~ret1 := parts(~p - ~q, ~q);< 10278#$Ultimate##0 ~p := #in~p;~q := #in~q; 10308#L20 assume ~p <= 0;#res := 1; 10283#partsFINAL assume true; 10277#partsEXIT >#68#return; 10226#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 10271#$Ultimate##0 ~p := #in~p;~q := #in~q; 10305#L20 assume !(~p <= 0); 10303#L21 assume ~q <= 0;#res := 0; 10293#partsFINAL assume true; 10388#partsEXIT >#70#return; 10201#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 10202#partsFINAL assume true; 10197#partsEXIT >#72#return; 10182#L36-1 havoc main_#t~ret8#1; 9891#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 9892#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 9824#L35-4 havoc main_~q~0#1; 9825#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9839#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 10404#L35-3 [2023-11-26 11:57:32,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:32,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1753071011, now seen corresponding path program 3 times [2023-11-26 11:57:32,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:32,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207907333] [2023-11-26 11:57:32,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:32,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:32,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:32,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:32,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2047650597, now seen corresponding path program 2 times [2023-11-26 11:57:32,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:32,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607333012] [2023-11-26 11:57:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:32,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:57:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:33,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:57:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-26 11:57:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:57:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:57:33,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:33,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607333012] [2023-11-26 11:57:33,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607333012] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:57:33,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817177584] [2023-11-26 11:57:33,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:57:33,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:33,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:33,192 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:33,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-26 11:57:33,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:57:33,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:57:33,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:57:33,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:57:33,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:57:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:57:33,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817177584] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:33,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:33,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-11-26 11:57:33,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249193986] [2023-11-26 11:57:33,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:33,706 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 11:57:33,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:33,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-26 11:57:33,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:57:33,708 INFO L87 Difference]: Start difference. First operand 817 states and 1375 transitions. cyclomatic complexity: 578 Second operand has 20 states, 19 states have (on average 2.0) internal successors, (38), 20 states have internal predecessors, (38), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-26 11:57:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:34,278 INFO L93 Difference]: Finished difference Result 1121 states and 1856 transitions. [2023-11-26 11:57:34,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1121 states and 1856 transitions. [2023-11-26 11:57:34,301 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 214 [2023-11-26 11:57:34,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1121 states to 1051 states and 1768 transitions. [2023-11-26 11:57:34,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 550 [2023-11-26 11:57:34,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 550 [2023-11-26 11:57:34,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1051 states and 1768 transitions. [2023-11-26 11:57:34,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:34,371 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1051 states and 1768 transitions. [2023-11-26 11:57:34,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states and 1768 transitions. [2023-11-26 11:57:34,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 808. [2023-11-26 11:57:34,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 542 states have (on average 1.1974169741697418) internal successors, (649), 565 states have internal predecessors, (649), 168 states have call successors, (170), 84 states have call predecessors, (170), 98 states have return successors, (503), 158 states have call predecessors, (503), 161 states have call successors, (503) [2023-11-26 11:57:34,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1322 transitions. [2023-11-26 11:57:34,434 INFO L240 hiAutomatonCegarLoop]: Abstraction has 808 states and 1322 transitions. [2023-11-26 11:57:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 11:57:34,436 INFO L428 stractBuchiCegarLoop]: Abstraction has 808 states and 1322 transitions. [2023-11-26 11:57:34,436 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-26 11:57:34,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 808 states and 1322 transitions. [2023-11-26 11:57:34,449 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 116 [2023-11-26 11:57:34,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:34,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:34,454 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:34,454 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 7, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-26 11:57:34,455 INFO L748 eck$LassoCheckResult]: Stem: 12090#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 12042#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 12043#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 12040#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 12041#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 12337#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 12349#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 12350#$Ultimate##0 ~p := #in~p;~q := #in~q; 12355#L20 assume ~p <= 0;#res := 1; 12353#partsFINAL assume true; 12354#partsEXIT >#72#return; 12339#L36-1 havoc main_#t~ret8#1; 12340#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 12403#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 12348#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 12401#$Ultimate##0 ~p := #in~p;~q := #in~q; 12404#L20 assume ~p <= 0;#res := 1; 12402#partsFINAL assume true; 12400#partsEXIT >#72#return; 12399#L36-1 havoc main_#t~ret8#1; 12398#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 12331#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 12332#L35-4 havoc main_~q~0#1; 12438#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 12439#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 12106#L35-3 [2023-11-26 11:57:34,458 INFO L750 eck$LassoCheckResult]: Loop: 12106#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 12077#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 12076#$Ultimate##0 ~p := #in~p;~q := #in~q; 12078#L20 assume !(~p <= 0); 12104#L21 assume ~q <= 0;#res := 0; 12812#partsFINAL assume true; 12810#partsEXIT >#72#return; 12803#L36-1 havoc main_#t~ret8#1; 12802#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 12800#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 12492#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 12672#$Ultimate##0 ~p := #in~p;~q := #in~q; 12670#L20 assume !(~p <= 0); 12668#L21 assume !(~q <= 0); 12666#L22 assume !(~q > ~p); 12523#L23 call #t~ret1 := parts(~p - ~q, ~q);< 12554#$Ultimate##0 ~p := #in~p;~q := #in~q; 12568#L20 assume ~p <= 0;#res := 1; 12563#partsFINAL assume true; 12553#partsEXIT >#68#return; 12514#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 12543#$Ultimate##0 ~p := #in~p;~q := #in~q; 12594#L20 assume !(~p <= 0); 12569#L21 assume ~q <= 0;#res := 0; 12593#partsFINAL assume true; 12769#partsEXIT >#70#return; 12588#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 12799#partsFINAL assume true; 12797#partsEXIT >#72#return; 12798#L36-1 havoc main_#t~ret8#1; 12801#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 12795#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 12491#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 12672#$Ultimate##0 ~p := #in~p;~q := #in~q; 12670#L20 assume !(~p <= 0); 12668#L21 assume !(~q <= 0); 12666#L22 assume !(~q > ~p); 12523#L23 call #t~ret1 := parts(~p - ~q, ~q);< 12554#$Ultimate##0 ~p := #in~p;~q := #in~q; 12568#L20 assume ~p <= 0;#res := 1; 12563#partsFINAL assume true; 12553#partsEXIT >#68#return; 12514#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 12543#$Ultimate##0 ~p := #in~p;~q := #in~q; 12594#L20 assume !(~p <= 0); 12569#L21 assume ~q <= 0;#res := 0; 12593#partsFINAL assume true; 12769#partsEXIT >#70#return; 12588#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 12799#partsFINAL assume true; 12797#partsEXIT >#72#return; 12796#L36-1 havoc main_#t~ret8#1; 12111#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 12112#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 12794#L35-4 havoc main_~q~0#1; 12061#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 12062#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 12106#L35-3 [2023-11-26 11:57:34,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:34,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1753071011, now seen corresponding path program 4 times [2023-11-26 11:57:34,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:34,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753888896] [2023-11-26 11:57:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:34,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:34,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:34,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:34,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:34,479 INFO L85 PathProgramCache]: Analyzing trace with hash 874845052, now seen corresponding path program 3 times [2023-11-26 11:57:34,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:34,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565933836] [2023-11-26 11:57:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:34,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:57:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:57:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-26 11:57:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:57:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:57:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-26 11:57:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:57:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 48 proven. 17 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 11:57:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:34,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565933836] [2023-11-26 11:57:34,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565933836] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:57:34,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495473140] [2023-11-26 11:57:34,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:57:34,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:34,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:34,771 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:34,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-26 11:57:34,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-26 11:57:34,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:57:34,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 11:57:34,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-26 11:57:35,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:57:35,723 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 46 proven. 5 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-26 11:57:35,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495473140] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:35,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:35,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 25 [2023-11-26 11:57:35,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685422434] [2023-11-26 11:57:35,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:35,725 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-26 11:57:35,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-26 11:57:35,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:57:35,727 INFO L87 Difference]: Start difference. First operand 808 states and 1322 transitions. cyclomatic complexity: 534 Second operand has 25 states, 25 states have (on average 2.48) internal successors, (62), 25 states have internal predecessors, (62), 6 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (15), 13 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-26 11:57:36,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:36,951 INFO L93 Difference]: Finished difference Result 1316 states and 2210 transitions. [2023-11-26 11:57:36,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1316 states and 2210 transitions. [2023-11-26 11:57:36,976 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 198 [2023-11-26 11:57:37,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1316 states to 1276 states and 2149 transitions. [2023-11-26 11:57:37,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 629 [2023-11-26 11:57:37,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 629 [2023-11-26 11:57:37,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1276 states and 2149 transitions. [2023-11-26 11:57:37,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:37,010 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1276 states and 2149 transitions. [2023-11-26 11:57:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states and 2149 transitions. [2023-11-26 11:57:37,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1018. [2023-11-26 11:57:37,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 690 states have (on average 1.1797101449275362) internal successors, (814), 731 states have internal predecessors, (814), 185 states have call successors, (187), 95 states have call predecessors, (187), 143 states have return successors, (783), 191 states have call predecessors, (783), 178 states have call successors, (783) [2023-11-26 11:57:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1784 transitions. [2023-11-26 11:57:37,078 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1018 states and 1784 transitions. [2023-11-26 11:57:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-26 11:57:37,080 INFO L428 stractBuchiCegarLoop]: Abstraction has 1018 states and 1784 transitions. [2023-11-26 11:57:37,081 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-26 11:57:37,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1018 states and 1784 transitions. [2023-11-26 11:57:37,093 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 138 [2023-11-26 11:57:37,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:37,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:37,095 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:37,096 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 11:57:37,096 INFO L748 eck$LassoCheckResult]: Stem: 14682#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 14642#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 14643#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 14636#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 14637#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 14698#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 15104#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 15105#$Ultimate##0 ~p := #in~p;~q := #in~q; 15109#L20 assume ~p <= 0;#res := 1; 15108#partsFINAL assume true; 15103#partsEXIT >#72#return; 15100#L36-1 havoc main_#t~ret8#1; 15099#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 15098#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 14645#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 15093#$Ultimate##0 ~p := #in~p;~q := #in~q; 15092#L20 assume !(~p <= 0); 15091#L21 assume !(~q <= 0); 15090#L22 assume ~q > ~p; 14678#L22-1 call #t~ret0 := parts(~p, ~p);< 14679#$Ultimate##0 ~p := #in~p;~q := #in~q; 15142#L20 assume !(~p <= 0); 15177#L21 assume !(~q <= 0); 15175#L22 assume !(~q > ~p); 15073#L23 call #t~ret1 := parts(~p - ~q, ~q);< 15172#$Ultimate##0 [2023-11-26 11:57:37,096 INFO L750 eck$LassoCheckResult]: Loop: 15172#$Ultimate##0 ~p := #in~p;~q := #in~q; 15181#L20 assume !(~p <= 0); 15182#L21 assume !(~q <= 0); 15180#L22 assume !(~q > ~p); 15069#L23 call #t~ret1 := parts(~p - ~q, ~q);< 15172#$Ultimate##0 [2023-11-26 11:57:37,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:37,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1702210391, now seen corresponding path program 1 times [2023-11-26 11:57:37,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:37,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641343244] [2023-11-26 11:57:37,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:37,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:57:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:57:37,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:37,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641343244] [2023-11-26 11:57:37,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641343244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:37,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:37,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:37,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361501966] [2023-11-26 11:57:37,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:37,177 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:57:37,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:37,178 INFO L85 PathProgramCache]: Analyzing trace with hash 28756504, now seen corresponding path program 1 times [2023-11-26 11:57:37,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:37,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872534177] [2023-11-26 11:57:37,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:37,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:37,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:37,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:37,270 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:37,270 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:37,270 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:37,270 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:37,271 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:37,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:37,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:37,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration11_Loop [2023-11-26 11:57:37,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:37,272 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:37,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,351 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:37,351 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:37,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,359 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:37,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-26 11:57:37,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:37,403 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~p=0} Honda state: {parts_~p=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:37,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:37,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,410 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:37,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-26 11:57:37,451 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:37,451 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~q=0} Honda state: {parts_~q=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:37,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:37,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,458 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:37,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-26 11:57:37,503 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:37,503 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret1=0} Honda state: {parts_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:37,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:37,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,510 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:37,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-26 11:57:37,541 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:37,541 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret2=0} Honda state: {parts_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:37,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:37,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,548 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:37,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-26 11:57:37,575 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:37,575 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#res=0} Honda state: {parts_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:37,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:37,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,585 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:37,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-26 11:57:37,604 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:37,605 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret0=0} Honda state: {parts_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:37,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-26 11:57:37,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,610 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:37,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-26 11:57:37,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-26 11:57:37,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:37,645 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:37,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-26 11:57:37,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:37,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:37,924 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:37,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:37,932 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:37,932 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:37,932 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:37,932 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:37,932 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:37,932 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:37,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:37,932 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:37,932 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration11_Loop [2023-11-26 11:57:37,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:37,932 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:37,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,956 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:37,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:38,025 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:38,025 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:38,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,027 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-26 11:57:38,030 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 [2023-11-26 11:57:38,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:38,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:38,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:38,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:38,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:38,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:38,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:38,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:38,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:38,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,052 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-26 11:57:38,056 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 [2023-11-26 11:57:38,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:38,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:38,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:38,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:38,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:38,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:38,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:38,073 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:38,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-26 11:57:38,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,077 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-26 11:57:38,080 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 [2023-11-26 11:57:38,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:38,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:38,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:38,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:38,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:38,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:38,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:38,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:38,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:38,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,129 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,135 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 [2023-11-26 11:57:38,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-26 11:57:38,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:38,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:38,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:38,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:38,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:38,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:38,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:38,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:38,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:38,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,174 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,179 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 [2023-11-26 11:57:38,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-26 11:57:38,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:38,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:38,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:38,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:38,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:38,197 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:38,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:38,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:38,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:38,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,213 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,222 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 [2023-11-26 11:57:38,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-26 11:57:38,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:38,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:38,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:38,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:38,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:38,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:38,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:38,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:38,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:38,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,266 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,271 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 [2023-11-26 11:57:38,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-26 11:57:38,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:38,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:38,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:38,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:38,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:38,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:38,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:38,308 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:38,315 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:38,315 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 11:57:38,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:38,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:38,322 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:38,324 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:38,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:38,324 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:38,324 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_#in~p) = 1*parts_#in~p Supporting invariants [] [2023-11-26 11:57:38,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-11-26 11:57:38,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:38,330 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:38,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:38,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:57:38,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:38,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:38,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:38,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:38,600 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:38,600 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1018 states and 1784 transitions. cyclomatic complexity: 789 Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:38,769 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1018 states and 1784 transitions. cyclomatic complexity: 789. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 1521 states and 2668 transitions. Complement of second has 20 states. [2023-11-26 11:57:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:38,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 33 transitions. [2023-11-26 11:57:38,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 25 letters. Loop has 5 letters. [2023-11-26 11:57:38,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:38,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 30 letters. Loop has 5 letters. [2023-11-26 11:57:38,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:38,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 25 letters. Loop has 10 letters. [2023-11-26 11:57:38,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:38,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1521 states and 2668 transitions. [2023-11-26 11:57:38,800 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 146 [2023-11-26 11:57:38,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1521 states to 1359 states and 2437 transitions. [2023-11-26 11:57:38,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 584 [2023-11-26 11:57:38,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 593 [2023-11-26 11:57:38,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1359 states and 2437 transitions. [2023-11-26 11:57:38,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:38,871 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1359 states and 2437 transitions. [2023-11-26 11:57:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states and 2437 transitions. [2023-11-26 11:57:38,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1316. [2023-11-26 11:57:38,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 902 states have (on average 1.2084257206208426) internal successors, (1090), 985 states have internal predecessors, (1090), 241 states have call successors, (243), 133 states have call predecessors, (243), 173 states have return successors, (1005), 197 states have call predecessors, (1005), 233 states have call successors, (1005) [2023-11-26 11:57:38,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 2338 transitions. [2023-11-26 11:57:38,952 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1316 states and 2338 transitions. [2023-11-26 11:57:38,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:38,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:57:38,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:57:38,954 INFO L87 Difference]: Start difference. First operand 1316 states and 2338 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:57:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:39,003 INFO L93 Difference]: Finished difference Result 1096 states and 1936 transitions. [2023-11-26 11:57:39,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1096 states and 1936 transitions. [2023-11-26 11:57:39,022 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 101 [2023-11-26 11:57:39,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1096 states to 1079 states and 1918 transitions. [2023-11-26 11:57:39,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 433 [2023-11-26 11:57:39,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 433 [2023-11-26 11:57:39,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1079 states and 1918 transitions. [2023-11-26 11:57:39,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:39,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1079 states and 1918 transitions. [2023-11-26 11:57:39,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states and 1918 transitions. [2023-11-26 11:57:39,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1071. [2023-11-26 11:57:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 734 states have (on average 1.2029972752043596) internal successors, (883), 803 states have internal predecessors, (883), 190 states have call successors, (191), 101 states have call predecessors, (191), 147 states have return successors, (836), 166 states have call predecessors, (836), 190 states have call successors, (836) [2023-11-26 11:57:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1910 transitions. [2023-11-26 11:57:39,112 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1071 states and 1910 transitions. [2023-11-26 11:57:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:39,114 INFO L428 stractBuchiCegarLoop]: Abstraction has 1071 states and 1910 transitions. [2023-11-26 11:57:39,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2023-11-26 11:57:39,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1071 states and 1910 transitions. [2023-11-26 11:57:39,125 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 101 [2023-11-26 11:57:39,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:39,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:39,128 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:39,129 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:39,129 INFO L748 eck$LassoCheckResult]: Stem: 19789#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 19737#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 19738#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 19735#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 19736#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 19753#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 19740#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 19741#$Ultimate##0 ~p := #in~p;~q := #in~q; 20641#L20 assume ~p <= 0;#res := 1; 20639#partsFINAL assume true; 20637#partsEXIT >#72#return; 20634#L36-1 havoc main_#t~ret8#1; 20626#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 20625#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 20621#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 20622#$Ultimate##0 ~p := #in~p;~q := #in~q; 20729#L20 assume ~p <= 0;#res := 1; 20727#partsFINAL assume true; 20620#partsEXIT >#72#return; 20618#L36-1 havoc main_#t~ret8#1; 20617#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 20615#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 19733#L35-4 havoc main_~q~0#1; 19734#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 19962#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 19957#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 19951#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 19954#$Ultimate##0 ~p := #in~p;~q := #in~q; 19960#L20 assume ~p <= 0;#res := 1; 19956#partsFINAL assume true; 19950#partsEXIT >#72#return; 19948#L36-1 [2023-11-26 11:57:39,129 INFO L750 eck$LassoCheckResult]: Loop: 19948#L36-1 havoc main_#t~ret8#1; 19946#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 19945#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 19716#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 19941#$Ultimate##0 ~p := #in~p;~q := #in~q; 19938#L20 assume ~p <= 0;#res := 1; 19936#partsFINAL assume true; 19952#partsEXIT >#72#return; 19948#L36-1 [2023-11-26 11:57:39,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1426628686, now seen corresponding path program 5 times [2023-11-26 11:57:39,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:39,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547731388] [2023-11-26 11:57:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:39,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:57:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:57:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:57:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:57:39,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:39,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547731388] [2023-11-26 11:57:39,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547731388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:39,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:39,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:57:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244577878] [2023-11-26 11:57:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:39,221 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:57:39,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1415064404, now seen corresponding path program 2 times [2023-11-26 11:57:39,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:39,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970616018] [2023-11-26 11:57:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:39,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:39,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:39,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:39,349 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:39,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:39,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:39,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:39,350 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:39,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:39,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:39,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:39,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration12_Loop [2023-11-26 11:57:39,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:39,350 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:39,353 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:39,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:39,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:39,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:39,421 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:39,421 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:39,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:39,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:39,424 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:39,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:39,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:39,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-11-26 11:57:39,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:39,455 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret8#1=1} Honda state: {ULTIMATE.start_main_#t~ret8#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:39,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:39,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:39,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:39,462 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:39,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:39,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:39,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-11-26 11:57:39,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:39,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:39,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:39,503 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:39,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:39,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:39,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-11-26 11:57:39,955 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:39,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-11-26 11:57:39,958 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:39,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:39,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:39,959 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:39,959 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:39,959 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:39,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:39,959 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:39,959 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration12_Loop [2023-11-26 11:57:39,959 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:39,959 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:39,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:39,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:39,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:39,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:40,016 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:40,016 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:40,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:40,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:40,018 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:40,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2023-11-26 11:57:40,021 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 [2023-11-26 11:57:40,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:40,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:40,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:40,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:40,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:40,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:40,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:40,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:40,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2023-11-26 11:57:40,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:40,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:40,040 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:40,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2023-11-26 11:57:40,043 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 [2023-11-26 11:57:40,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:40,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:40,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:40,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:40,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:40,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:40,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:40,058 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:40,062 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:40,062 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 11:57:40,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:40,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:40,063 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:40,071 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:40,072 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:40,072 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:40,072 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2023-11-26 11:57:40,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2023-11-26 11:57:40,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:40,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:40,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:40,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:40,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:40,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:40,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:40,343 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:40,343 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1071 states and 1910 transitions. cyclomatic complexity: 868 Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:40,413 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1071 states and 1910 transitions. cyclomatic complexity: 868. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 1088 states and 1928 transitions. Complement of second has 10 states. [2023-11-26 11:57:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2023-11-26 11:57:40,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 31 letters. Loop has 8 letters. [2023-11-26 11:57:40,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:40,417 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:57:40,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:40,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:40,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:40,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2023-11-26 11:57:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:40,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:40,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:40,708 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:40,708 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1071 states and 1910 transitions. cyclomatic complexity: 868 Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:40,801 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1071 states and 1910 transitions. cyclomatic complexity: 868. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 1086 states and 1925 transitions. Complement of second has 12 states. [2023-11-26 11:57:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2023-11-26 11:57:40,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 31 letters. Loop has 8 letters. [2023-11-26 11:57:40,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:40,803 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:57:40,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:40,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:40,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:41,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:41,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:41,057 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:41,057 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1071 states and 1910 transitions. cyclomatic complexity: 868 Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:41,220 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1071 states and 1910 transitions. cyclomatic complexity: 868. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 2050 states and 3720 transitions. Complement of second has 13 states. [2023-11-26 11:57:41,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2023-11-26 11:57:41,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 31 letters. Loop has 8 letters. [2023-11-26 11:57:41,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:41,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 39 letters. Loop has 8 letters. [2023-11-26 11:57:41,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:41,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 31 letters. Loop has 16 letters. [2023-11-26 11:57:41,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:41,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2050 states and 3720 transitions. [2023-11-26 11:57:41,260 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 69 [2023-11-26 11:57:41,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2050 states to 1600 states and 2764 transitions. [2023-11-26 11:57:41,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 282 [2023-11-26 11:57:41,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2023-11-26 11:57:41,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1600 states and 2764 transitions. [2023-11-26 11:57:41,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:41,300 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1600 states and 2764 transitions. [2023-11-26 11:57:41,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states and 2764 transitions. [2023-11-26 11:57:41,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1526. [2023-11-26 11:57:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1041 states have (on average 1.201729106628242) internal successors, (1251), 1140 states have internal predecessors, (1251), 291 states have call successors, (311), 162 states have call predecessors, (311), 194 states have return successors, (1096), 223 states have call predecessors, (1096), 274 states have call successors, (1096) [2023-11-26 11:57:41,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2658 transitions. [2023-11-26 11:57:41,380 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1526 states and 2658 transitions. [2023-11-26 11:57:41,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:41,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:57:41,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:57:41,381 INFO L87 Difference]: Start difference. First operand 1526 states and 2658 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:57:41,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:41,466 INFO L93 Difference]: Finished difference Result 881 states and 1463 transitions. [2023-11-26 11:57:41,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 881 states and 1463 transitions. [2023-11-26 11:57:41,480 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 66 [2023-11-26 11:57:41,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 881 states to 498 states and 837 transitions. [2023-11-26 11:57:41,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2023-11-26 11:57:41,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 181 [2023-11-26 11:57:41,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 498 states and 837 transitions. [2023-11-26 11:57:41,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:41,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 498 states and 837 transitions. [2023-11-26 11:57:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states and 837 transitions. [2023-11-26 11:57:41,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 480. [2023-11-26 11:57:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 335 states have (on average 1.191044776119403) internal successors, (399), 355 states have internal predecessors, (399), 87 states have call successors, (94), 57 states have call predecessors, (94), 58 states have return successors, (321), 67 states have call predecessors, (321), 81 states have call successors, (321) [2023-11-26 11:57:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 814 transitions. [2023-11-26 11:57:41,519 INFO L240 hiAutomatonCegarLoop]: Abstraction has 480 states and 814 transitions. [2023-11-26 11:57:41,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:57:41,520 INFO L428 stractBuchiCegarLoop]: Abstraction has 480 states and 814 transitions. [2023-11-26 11:57:41,520 INFO L335 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2023-11-26 11:57:41,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 480 states and 814 transitions. [2023-11-26 11:57:41,525 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 66 [2023-11-26 11:57:41,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:41,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:41,527 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:41,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:41,528 INFO L748 eck$LassoCheckResult]: Stem: 27910#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 27878#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 27879#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 27872#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 27873#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 27986#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 27982#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 27983#$Ultimate##0 ~p := #in~p;~q := #in~q; 27988#L20 assume ~p <= 0;#res := 1; 27985#partsFINAL assume true; 27981#partsEXIT >#72#return; 27979#L36-1 havoc main_#t~ret8#1; 27978#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 27977#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 27946#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 27955#$Ultimate##0 ~p := #in~p;~q := #in~q; 27952#L20 assume ~p <= 0;#res := 1; 27950#partsFINAL assume true; 27945#partsEXIT >#72#return; 27944#L36-1 havoc main_#t~ret8#1; 27937#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 27938#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 27870#L35-4 havoc main_~q~0#1; 27871#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 27883#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 27884#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 27874#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 27875#$Ultimate##0 ~p := #in~p;~q := #in~q; 28064#L20 assume !(~p <= 0); 27998#L21 assume ~q <= 0;#res := 0; 27951#partsFINAL assume true; 27949#partsEXIT >#72#return; 27941#L36-1 havoc main_#t~ret8#1; 27939#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 27885#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 27860#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 27877#$Ultimate##0 ~p := #in~p;~q := #in~q; 28243#L20 assume !(~p <= 0); 28242#L21 assume !(~q <= 0); 28239#L22 assume !(~q > ~p); 27898#L23 call #t~ret1 := parts(~p - ~q, ~q);< 28236#$Ultimate##0 ~p := #in~p;~q := #in~q; 28237#L20 assume ~p <= 0;#res := 1; 28314#partsFINAL assume true; 28313#partsEXIT >#68#return; 27849#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 27993#$Ultimate##0 [2023-11-26 11:57:41,528 INFO L750 eck$LassoCheckResult]: Loop: 27993#$Ultimate##0 ~p := #in~p;~q := #in~q; 28221#L20 assume !(~p <= 0); 28222#L21 assume !(~q <= 0); 28006#L22 assume !(~q > ~p); 27899#L23 call #t~ret1 := parts(~p - ~q, ~q);< 27881#$Ultimate##0 ~p := #in~p;~q := #in~q; 28299#L20 assume ~p <= 0;#res := 1; 28298#partsFINAL assume true; 28282#partsEXIT >#68#return; 27848#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 27993#$Ultimate##0 [2023-11-26 11:57:41,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:41,529 INFO L85 PathProgramCache]: Analyzing trace with hash 955053493, now seen corresponding path program 1 times [2023-11-26 11:57:41,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:41,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899719344] [2023-11-26 11:57:41,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:41,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:41,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:41,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:41,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:41,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2079157784, now seen corresponding path program 1 times [2023-11-26 11:57:41,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:41,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599041193] [2023-11-26 11:57:41,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:41,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:41,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:41,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:41,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash 230281932, now seen corresponding path program 2 times [2023-11-26 11:57:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:41,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090822648] [2023-11-26 11:57:41,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:41,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:57:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:41,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:57:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:41,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:57:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-26 11:57:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-26 11:57:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 36 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-26 11:57:41,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:41,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090822648] [2023-11-26 11:57:41,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090822648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:57:41,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087594] [2023-11-26 11:57:41,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:57:41,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:41,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:41,743 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:41,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-26 11:57:41,823 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:57:41,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:57:41,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:57:41,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-26 11:57:41,865 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:57:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 36 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-26 11:57:41,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087594] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:41,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:41,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2023-11-26 11:57:41,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907758569] [2023-11-26 11:57:41,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:42,170 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:42,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:42,171 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:42,171 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:42,171 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:42,171 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,171 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:42,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:42,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration13_Loop [2023-11-26 11:57:42,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:42,171 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:42,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,181 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,255 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:42,256 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:42,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,257 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:42,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:42,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2023-11-26 11:57:42,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:42,289 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret1=0} Honda state: {parts_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:42,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,295 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:42,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:42,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2023-11-26 11:57:42,335 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:42,335 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~p=0} Honda state: {parts_~p=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:42,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,342 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:42,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:42,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2023-11-26 11:57:42,383 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:42,383 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret2=0} Honda state: {parts_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:42,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,390 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:42,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:42,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2023-11-26 11:57:42,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:42,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret0=0} Honda state: {parts_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:42,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,442 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:42,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:42,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2023-11-26 11:57:42,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,489 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:42,495 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:42,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2023-11-26 11:57:42,543 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:57:42,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,548 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:42,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:42,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:42,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:42,549 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:42,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:42,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:42,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration13_Loop [2023-11-26 11:57:42,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:42,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:42,550 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,572 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:42,629 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:42,630 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:42,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,632 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,642 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 [2023-11-26 11:57:42,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2023-11-26 11:57:42,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:42,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:42,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:42,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:42,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:42,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:42,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:42,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:42,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,689 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,696 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 [2023-11-26 11:57:42,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2023-11-26 11:57:42,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:42,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:42,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:42,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:42,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:42,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:42,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:42,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:42,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,742 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,747 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 [2023-11-26 11:57:42,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2023-11-26 11:57:42,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:42,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:42,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:42,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:42,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:42,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:42,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:42,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:42,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,789 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,794 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 [2023-11-26 11:57:42,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2023-11-26 11:57:42,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:42,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:42,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:42,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:42,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:42,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:42,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:42,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:57:42,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,841 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,846 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 [2023-11-26 11:57:42,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2023-11-26 11:57:42,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:42,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:42,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:42,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:42,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:42,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:42,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:42,887 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:42,892 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:42,892 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 11:57:42,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:42,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:42,899 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:42,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:42,901 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:42,901 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:42,901 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_#in~q) = 1*parts_#in~q Supporting invariants [] [2023-11-26 11:57:42,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2023-11-26 11:57:42,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:42,907 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:42,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:42,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-26 11:57:42,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:43,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:57:43,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:43,278 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:43,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 480 states and 814 transitions. cyclomatic complexity: 354 Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:43,626 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 480 states and 814 transitions. cyclomatic complexity: 354. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 1847 states and 3470 transitions. Complement of second has 37 states. [2023-11-26 11:57:43,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:43,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:57:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 71 transitions. [2023-11-26 11:57:43,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 71 transitions. Stem has 46 letters. Loop has 10 letters. [2023-11-26 11:57:43,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:43,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 71 transitions. Stem has 56 letters. Loop has 10 letters. [2023-11-26 11:57:43,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:43,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 71 transitions. Stem has 46 letters. Loop has 20 letters. [2023-11-26 11:57:43,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:43,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1847 states and 3470 transitions. [2023-11-26 11:57:43,658 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 111 [2023-11-26 11:57:43,700 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1847 states to 1457 states and 2792 transitions. [2023-11-26 11:57:43,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 377 [2023-11-26 11:57:43,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 387 [2023-11-26 11:57:43,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1457 states and 2792 transitions. [2023-11-26 11:57:43,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:43,703 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1457 states and 2792 transitions. [2023-11-26 11:57:43,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states and 2792 transitions. [2023-11-26 11:57:43,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1209. [2023-11-26 11:57:43,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 827 states have (on average 1.2321644498186215) internal successors, (1019), 900 states have internal predecessors, (1019), 249 states have call successors, (256), 146 states have call predecessors, (256), 133 states have return successors, (862), 162 states have call predecessors, (862), 229 states have call successors, (862) [2023-11-26 11:57:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 2137 transitions. [2023-11-26 11:57:43,776 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1209 states and 2137 transitions. [2023-11-26 11:57:43,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:43,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:57:43,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:57:43,777 INFO L87 Difference]: Start difference. First operand 1209 states and 2137 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 5 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-26 11:57:43,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:43,944 INFO L93 Difference]: Finished difference Result 1411 states and 2395 transitions. [2023-11-26 11:57:43,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1411 states and 2395 transitions. [2023-11-26 11:57:43,961 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 125 [2023-11-26 11:57:43,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2023-11-26 11:57:43,989 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1411 states to 1366 states and 2337 transitions. [2023-11-26 11:57:43,990 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2023-11-26 11:57:43,990 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2023-11-26 11:57:43,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1366 states and 2337 transitions. [2023-11-26 11:57:43,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:43,992 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1366 states and 2337 transitions. [2023-11-26 11:57:43,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states and 2337 transitions. [2023-11-26 11:57:44,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1318. [2023-11-26 11:57:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 897 states have (on average 1.2274247491638797) internal successors, (1101), 980 states have internal predecessors, (1101), 272 states have call successors, (281), 158 states have call predecessors, (281), 149 states have return successors, (899), 179 states have call predecessors, (899), 247 states have call successors, (899) [2023-11-26 11:57:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 2281 transitions. [2023-11-26 11:57:44,064 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1318 states and 2281 transitions. [2023-11-26 11:57:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:57:44,065 INFO L428 stractBuchiCegarLoop]: Abstraction has 1318 states and 2281 transitions. [2023-11-26 11:57:44,066 INFO L335 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2023-11-26 11:57:44,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1318 states and 2281 transitions. [2023-11-26 11:57:44,075 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 119 [2023-11-26 11:57:44,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:44,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:44,078 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:44,079 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 11:57:44,079 INFO L748 eck$LassoCheckResult]: Stem: 33517#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 33435#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 33436#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 33429#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 33430#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 33548#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 33433#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 33434#$Ultimate##0 ~p := #in~p;~q := #in~q; 34710#L20 assume ~p <= 0;#res := 1; 34709#partsFINAL assume true; 34708#partsEXIT >#72#return; 33398#L36-1 havoc main_#t~ret8#1; 33543#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 33582#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 33397#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 33571#$Ultimate##0 ~p := #in~p;~q := #in~q; 33561#L20 assume ~p <= 0;#res := 1; 33560#partsFINAL assume true; 33557#partsEXIT >#72#return; 33549#L36-1 havoc main_#t~ret8#1; 33535#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 33536#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 33427#L35-4 havoc main_~q~0#1; 33428#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 33666#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 33660#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 33552#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 33556#$Ultimate##0 ~p := #in~p;~q := #in~q; 33555#L20 assume !(~p <= 0); 33554#L21 assume ~q <= 0;#res := 0; 33551#partsFINAL assume true; 33553#partsEXIT >#72#return; 33657#L36-1 havoc main_#t~ret8#1; 33639#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 33637#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 33459#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 33616#$Ultimate##0 ~p := #in~p;~q := #in~q; 34096#L20 assume !(~p <= 0); 34094#L21 assume !(~q <= 0); 34091#L22 assume ~q > ~p; 33456#L22-1 call #t~ret0 := parts(~p, ~p);< 33458#$Ultimate##0 ~p := #in~p;~q := #in~q; 34045#L20 assume !(~p <= 0); 34043#L21 assume !(~q <= 0); 34040#L22 assume !(~q > ~p); 33493#L23 call #t~ret1 := parts(~p - ~q, ~q);< 34037#$Ultimate##0 ~p := #in~p;~q := #in~q; 34042#L20 assume ~p <= 0;#res := 1; 34039#partsFINAL assume true; 34036#partsEXIT >#68#return; 33438#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 34033#$Ultimate##0 ~p := #in~p;~q := #in~q; 34034#L20 assume !(~p <= 0); 34143#L21 assume !(~q <= 0); 33444#L22 [2023-11-26 11:57:44,081 INFO L750 eck$LassoCheckResult]: Loop: 33444#L22 assume !(~q > ~p); 33437#L23 call #t~ret1 := parts(~p - ~q, ~q);< 33440#$Ultimate##0 ~p := #in~p;~q := #in~q; 34167#L20 assume !(~p <= 0); 34154#L21 assume !(~q <= 0); 33444#L22 [2023-11-26 11:57:44,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:44,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1447040849, now seen corresponding path program 1 times [2023-11-26 11:57:44,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:44,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703184997] [2023-11-26 11:57:44,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:44,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:44,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:57:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:57:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:57:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 11:57:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-26 11:57:44,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:44,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703184997] [2023-11-26 11:57:44,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703184997] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:57:44,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374271345] [2023-11-26 11:57:44,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:44,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:44,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:44,227 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:44,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-26 11:57:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:44,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:57:44,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-26 11:57:44,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:57:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-26 11:57:44,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374271345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:44,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:44,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2023-11-26 11:57:44,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596519136] [2023-11-26 11:57:44,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:44,395 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:57:44,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash 43554574, now seen corresponding path program 2 times [2023-11-26 11:57:44,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:44,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257772322] [2023-11-26 11:57:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:44,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:44,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:44,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:44,519 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:44,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:44,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:44,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:44,519 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:44,519 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:44,519 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:44,519 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:44,520 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration14_Loop [2023-11-26 11:57:44,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:44,520 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:44,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:44,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:44,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:44,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:44,543 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:44,600 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:44,600 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:44,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:44,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:44,604 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:44,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:44,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:44,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-11-26 11:57:44,630 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:44,630 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret1=0} Honda state: {parts_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:44,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:44,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:44,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:44,636 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:44,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:44,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:44,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2023-11-26 11:57:44,662 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:44,662 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret2=0} Honda state: {parts_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:44,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:44,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:44,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:44,668 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:44,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:44,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:44,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2023-11-26 11:57:44,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:44,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret0=0} Honda state: {parts_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:44,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:44,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:44,709 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:44,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:44,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:44,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2023-11-26 11:57:44,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:44,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:44,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:44,757 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:44,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:44,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:44,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2023-11-26 11:57:56,811 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2023-11-26 11:57:56,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2023-11-26 11:57:56,817 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:56,817 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:56,817 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:56,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:56,817 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:57:56,817 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:56,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:56,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:56,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration14_Loop [2023-11-26 11:57:56,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:56,818 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:56,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:56,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:56,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:56,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:56,840 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:56,894 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:56,894 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:57:56,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:56,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:56,911 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:56,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2023-11-26 11:57:56,913 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 [2023-11-26 11:57:56,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:57:56,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:57:56,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:57:56,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:57:56,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:57:56,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:57:56,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:57:56,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:57:56,957 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:57:56,957 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 11:57:56,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:56,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:56,975 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:56,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2023-11-26 11:57:56,995 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:57:56,995 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:57:56,995 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:57:56,996 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_~p) = 1*parts_~p Supporting invariants [] [2023-11-26 11:57:57,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:57,007 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:57:57,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:57,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:57:57,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:57,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:57:57,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:57,367 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:57,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1318 states and 2281 transitions. cyclomatic complexity: 1012 Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:57:57,523 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1318 states and 2281 transitions. cyclomatic complexity: 1012. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Result 1374 states and 2344 transitions. Complement of second has 15 states. [2023-11-26 11:57:57,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:57:57,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 28 transitions. [2023-11-26 11:57:57,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 54 letters. Loop has 5 letters. [2023-11-26 11:57:57,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:57,525 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:57:57,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:57,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:57,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:57:57,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:57,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:57:57,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:57,865 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:57,865 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1318 states and 2281 transitions. cyclomatic complexity: 1012 Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:57:57,981 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1318 states and 2281 transitions. cyclomatic complexity: 1012. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Result 1374 states and 2344 transitions. Complement of second has 15 states. [2023-11-26 11:57:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:57:57,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 28 transitions. [2023-11-26 11:57:57,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 54 letters. Loop has 5 letters. [2023-11-26 11:57:57,985 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:57,985 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:57:57,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:58,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:57:58,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:58,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:57:58,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:58,284 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-26 11:57:58,285 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1318 states and 2281 transitions. cyclomatic complexity: 1012 Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:57:58,421 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1318 states and 2281 transitions. cyclomatic complexity: 1012. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Result 2039 states and 3513 transitions. Complement of second has 20 states. [2023-11-26 11:57:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 11:57:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:57:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 39 transitions. [2023-11-26 11:57:58,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 54 letters. Loop has 5 letters. [2023-11-26 11:57:58,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:58,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 59 letters. Loop has 5 letters. [2023-11-26 11:57:58,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:58,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 54 letters. Loop has 10 letters. [2023-11-26 11:57:58,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:57:58,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2039 states and 3513 transitions. [2023-11-26 11:57:58,453 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 132 [2023-11-26 11:57:58,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2039 states to 1624 states and 3044 transitions. [2023-11-26 11:57:58,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 295 [2023-11-26 11:57:58,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 344 [2023-11-26 11:57:58,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1624 states and 3044 transitions. [2023-11-26 11:57:58,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:58,497 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1624 states and 3044 transitions. [2023-11-26 11:57:58,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states and 3044 transitions. [2023-11-26 11:57:58,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1363. [2023-11-26 11:57:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 919 states have (on average 1.2644178454842219) internal successors, (1162), 1005 states have internal predecessors, (1162), 303 states have call successors, (312), 179 states have call predecessors, (312), 141 states have return successors, (783), 178 states have call predecessors, (783), 280 states have call successors, (783) [2023-11-26 11:57:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 2257 transitions. [2023-11-26 11:57:58,574 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1363 states and 2257 transitions. [2023-11-26 11:57:58,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:58,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:57:58,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:57:58,575 INFO L87 Difference]: Start difference. First operand 1363 states and 2257 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 states have internal predecessors, (34), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 11:57:58,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:57:58,702 INFO L93 Difference]: Finished difference Result 1403 states and 2333 transitions. [2023-11-26 11:57:58,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1403 states and 2333 transitions. [2023-11-26 11:57:58,718 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 115 [2023-11-26 11:57:58,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1403 states to 1385 states and 2313 transitions. [2023-11-26 11:57:58,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 327 [2023-11-26 11:57:58,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 327 [2023-11-26 11:57:58,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1385 states and 2313 transitions. [2023-11-26 11:57:58,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:57:58,749 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1385 states and 2313 transitions. [2023-11-26 11:57:58,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states and 2313 transitions. [2023-11-26 11:57:58,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1343. [2023-11-26 11:57:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 904 states have (on average 1.2599557522123894) internal successors, (1139), 993 states have internal predecessors, (1139), 294 states have call successors, (301), 175 states have call predecessors, (301), 145 states have return successors, (814), 174 states have call predecessors, (814), 275 states have call successors, (814) [2023-11-26 11:57:58,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 2254 transitions. [2023-11-26 11:57:58,870 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1343 states and 2254 transitions. [2023-11-26 11:57:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:57:58,871 INFO L428 stractBuchiCegarLoop]: Abstraction has 1343 states and 2254 transitions. [2023-11-26 11:57:58,871 INFO L335 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2023-11-26 11:57:58,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1343 states and 2254 transitions. [2023-11-26 11:57:58,879 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 109 [2023-11-26 11:57:58,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:57:58,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:57:58,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:58,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:58,885 INFO L748 eck$LassoCheckResult]: Stem: 43314#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 43278#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 43279#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 43272#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 43273#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 43343#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43435#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43436#$Ultimate##0 ~p := #in~p;~q := #in~q; 43438#L20 assume ~p <= 0;#res := 1; 43437#partsFINAL assume true; 43434#partsEXIT >#72#return; 43428#L36-1 havoc main_#t~ret8#1; 43417#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 43414#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43363#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43379#$Ultimate##0 ~p := #in~p;~q := #in~q; 43365#L20 assume ~p <= 0;#res := 1; 43362#partsFINAL assume true; 43364#partsEXIT >#72#return; 43344#L36-1 havoc main_#t~ret8#1; 43315#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 43316#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 43270#L35-4 havoc main_~q~0#1; 43271#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 43289#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 43345#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43274#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43275#$Ultimate##0 ~p := #in~p;~q := #in~q; 43778#L20 assume !(~p <= 0); 43776#L21 assume ~q <= 0;#res := 0; 43774#partsFINAL assume true; 43346#partsEXIT >#72#return; 43347#L36-1 havoc main_#t~ret8#1; 43590#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 43588#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43584#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43586#$Ultimate##0 ~p := #in~p;~q := #in~q; 43636#L20 assume !(~p <= 0); 43633#L21 assume !(~q <= 0); 43631#L22 assume !(~q > ~p); 43629#L23 call #t~ret1 := parts(~p - ~q, ~q);< 43630#$Ultimate##0 ~p := #in~p;~q := #in~q; 43637#L20 assume ~p <= 0;#res := 1; 43635#partsFINAL assume true; 43628#partsEXIT >#68#return; 43624#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 43627#$Ultimate##0 ~p := #in~p;~q := #in~q; 43657#L20 assume !(~p <= 0); 43655#L21 assume ~q <= 0;#res := 0; 43638#partsFINAL assume true; 43623#partsEXIT >#70#return; 43622#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 43620#partsFINAL assume true; 43583#partsEXIT >#72#return; 43579#L36-1 havoc main_#t~ret8#1; 43415#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 43416#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43356#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43361#$Ultimate##0 ~p := #in~p;~q := #in~q; 43386#L20 assume !(~p <= 0); 43452#L21 assume !(~q <= 0); 43380#L22 assume ~q > ~p; 43284#L22-1 call #t~ret0 := parts(~p, ~p);< 43378#$Ultimate##0 ~p := #in~p;~q := #in~q; 43603#L20 assume !(~p <= 0); 44142#L21 assume !(~q <= 0); 43290#L22 assume !(~q > ~p); 43235#L23 [2023-11-26 11:57:58,886 INFO L750 eck$LassoCheckResult]: Loop: 43235#L23 call #t~ret1 := parts(~p - ~q, ~q);< 43286#$Ultimate##0 ~p := #in~p;~q := #in~q; 43301#L20 assume ~p <= 0;#res := 1; 44034#partsFINAL assume true; 43234#partsEXIT >#68#return; 43236#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 43487#$Ultimate##0 ~p := #in~p;~q := #in~q; 43766#L20 assume !(~p <= 0); 43763#L21 assume !(~q <= 0); 43764#L22 assume !(~q > ~p); 43235#L23 [2023-11-26 11:57:58,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:58,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2130766981, now seen corresponding path program 1 times [2023-11-26 11:57:58,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:58,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400899698] [2023-11-26 11:57:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:58,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:58,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:57:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:58,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:57:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:57:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:58,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 11:57:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-26 11:57:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:59,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:57:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:59,010 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 43 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-26 11:57:59,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:59,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400899698] [2023-11-26 11:57:59,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400899698] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:57:59,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021930346] [2023-11-26 11:57:59,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:59,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:57:59,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:59,012 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:57:59,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-26 11:57:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:59,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:57:59,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:57:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 43 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-26 11:57:59,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:57:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 43 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-26 11:57:59,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021930346] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:59,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:59,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2023-11-26 11:57:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139185793] [2023-11-26 11:57:59,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:59,294 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:57:59,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:59,294 INFO L85 PathProgramCache]: Analyzing trace with hash -339284200, now seen corresponding path program 2 times [2023-11-26 11:57:59,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:59,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774344825] [2023-11-26 11:57:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:59,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:59,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:57:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:57:59,302 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:57:59,496 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:57:59,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:57:59,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:57:59,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:57:59,496 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:57:59,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:59,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:57:59,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:57:59,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration15_Loop [2023-11-26 11:57:59,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:57:59,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:57:59,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:59,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:59,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:59,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:59,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:57:59,578 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:57:59,578 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:57:59,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:59,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:59,579 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:59,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2023-11-26 11:57:59,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:59,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:59,595 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:59,595 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret2=0} Honda state: {parts_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:59,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2023-11-26 11:57:59,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:59,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:59,599 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:59,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2023-11-26 11:57:59,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:59,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:59,614 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:59,614 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret1=0} Honda state: {parts_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:59,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2023-11-26 11:57:59,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:59,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:59,618 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:59,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2023-11-26 11:57:59,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:59,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:59,632 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:59,632 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#res=0} Honda state: {parts_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:59,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:59,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:59,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:59,636 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:59,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2023-11-26 11:57:59,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:59,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:59,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:57:59,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret0=0} Honda state: {parts_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:57:59,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:59,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:59,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:59,656 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:59,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2023-11-26 11:57:59,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:57:59,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:57:59,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2023-11-26 11:57:59,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:57:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:57:59,683 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:57:59,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2023-11-26 11:57:59,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:57:59,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:04,646 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 11:58:04,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:04,652 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:58:04,652 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:58:04,652 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:58:04,652 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:58:04,652 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 11:58:04,652 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:04,652 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:58:04,652 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:58:04,652 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration15_Loop [2023-11-26 11:58:04,652 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:58:04,653 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:58:04,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:04,656 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:04,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:04,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:04,685 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:04,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:58:04,744 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 11:58:04,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:04,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:04,745 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:04,768 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 [2023-11-26 11:58:04,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2023-11-26 11:58:04,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:58:04,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:58:04,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:58:04,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:58:04,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:58:04,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:58:04,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:58:04,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:58:04,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2023-11-26 11:58:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:04,795 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:04,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2023-11-26 11:58:04,799 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 [2023-11-26 11:58:04,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:58:04,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:58:04,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:58:04,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:58:04,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:58:04,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:58:04,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:58:04,812 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 11:58:04,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2023-11-26 11:58:04,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:04,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:04,816 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:04,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2023-11-26 11:58:04,820 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 [2023-11-26 11:58:04,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 11:58:04,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 11:58:04,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 11:58:04,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 11:58:04,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 11:58:04,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 11:58:04,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 11:58:04,861 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 11:58:04,876 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 11:58:04,877 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-26 11:58:04,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:04,882 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:04,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2023-11-26 11:58:04,883 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 11:58:04,883 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 11:58:04,883 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 11:58:04,883 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_~q) = 1*parts_~q Supporting invariants [] [2023-11-26 11:58:04,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2023-11-26 11:58:04,887 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 11:58:04,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:04,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:58:04,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:58:05,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:05,367 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-26 11:58:05,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1343 states and 2254 transitions. cyclomatic complexity: 956 Second operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 11:58:05,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:05,599 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1343 states and 2254 transitions. cyclomatic complexity: 956. Second operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 3991 states and 6834 transitions. Complement of second has 23 states. [2023-11-26 11:58:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 11:58:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 11:58:05,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 56 transitions. [2023-11-26 11:58:05,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 56 transitions. Stem has 67 letters. Loop has 10 letters. [2023-11-26 11:58:05,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:05,602 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:58:05,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:05,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:58:05,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:58:06,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:06,073 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-26 11:58:06,073 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1343 states and 2254 transitions. cyclomatic complexity: 956 Second operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 11:58:06,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1343 states and 2254 transitions. cyclomatic complexity: 956. Second operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 3903 states and 6749 transitions. Complement of second has 25 states. [2023-11-26 11:58:06,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-26 11:58:06,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 11:58:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 56 transitions. [2023-11-26 11:58:06,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 56 transitions. Stem has 67 letters. Loop has 10 letters. [2023-11-26 11:58:06,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:06,289 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-26 11:58:06,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:58:06,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:06,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:58:06,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:06,808 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2023-11-26 11:58:06,808 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1343 states and 2254 transitions. cyclomatic complexity: 956 Second operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 11:58:07,133 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1343 states and 2254 transitions. cyclomatic complexity: 956. Second operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Result 9284 states and 15031 transitions. Complement of second has 127 states. [2023-11-26 11:58:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2023-11-26 11:58:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 11:58:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 64 transitions. [2023-11-26 11:58:07,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 64 transitions. Stem has 67 letters. Loop has 10 letters. [2023-11-26 11:58:07,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:07,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 64 transitions. Stem has 77 letters. Loop has 10 letters. [2023-11-26 11:58:07,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:07,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 64 transitions. Stem has 67 letters. Loop has 20 letters. [2023-11-26 11:58:07,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 11:58:07,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9284 states and 15031 transitions. [2023-11-26 11:58:07,237 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 172 [2023-11-26 11:58:07,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9284 states to 4779 states and 7904 transitions. [2023-11-26 11:58:07,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2023-11-26 11:58:07,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 412 [2023-11-26 11:58:07,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4779 states and 7904 transitions. [2023-11-26 11:58:07,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:58:07,328 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4779 states and 7904 transitions. [2023-11-26 11:58:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states and 7904 transitions. [2023-11-26 11:58:07,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 3926. [2023-11-26 11:58:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3926 states, 2381 states have (on average 1.2293154136917261) internal successors, (2927), 2797 states have internal predecessors, (2927), 1137 states have call successors, (1220), 518 states have call predecessors, (1220), 408 states have return successors, (2103), 610 states have call predecessors, (2103), 1092 states have call successors, (2103) [2023-11-26 11:58:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3926 states to 3926 states and 6250 transitions. [2023-11-26 11:58:07,497 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3926 states and 6250 transitions. [2023-11-26 11:58:07,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:07,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:58:07,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:58:07,498 INFO L87 Difference]: Start difference. First operand 3926 states and 6250 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-26 11:58:07,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:07,631 INFO L93 Difference]: Finished difference Result 3997 states and 6361 transitions. [2023-11-26 11:58:07,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3997 states and 6361 transitions. [2023-11-26 11:58:07,667 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 149 [2023-11-26 11:58:07,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3997 states to 3976 states and 6337 transitions. [2023-11-26 11:58:07,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 313 [2023-11-26 11:58:07,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 313 [2023-11-26 11:58:07,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3976 states and 6337 transitions. [2023-11-26 11:58:07,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-26 11:58:07,780 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3976 states and 6337 transitions. [2023-11-26 11:58:07,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states and 6337 transitions. [2023-11-26 11:58:07,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3930. [2023-11-26 11:58:07,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3930 states, 2384 states have (on average 1.229026845637584) internal successors, (2930), 2800 states have internal predecessors, (2930), 1138 states have call successors, (1221), 518 states have call predecessors, (1221), 408 states have return successors, (2104), 611 states have call predecessors, (2104), 1093 states have call successors, (2104) [2023-11-26 11:58:07,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 6255 transitions. [2023-11-26 11:58:07,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3930 states and 6255 transitions. [2023-11-26 11:58:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:58:07,988 INFO L428 stractBuchiCegarLoop]: Abstraction has 3930 states and 6255 transitions. [2023-11-26 11:58:07,988 INFO L335 stractBuchiCegarLoop]: ======== Iteration 16 ============ [2023-11-26 11:58:07,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3930 states and 6255 transitions. [2023-11-26 11:58:08,004 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 129 [2023-11-26 11:58:08,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 11:58:08,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 11:58:08,006 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 6, 6, 6, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:08,006 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-26 11:58:08,006 INFO L748 eck$LassoCheckResult]: Stem: 71127#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 71081#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 71082#L28 assume !(main_~x~0#1 < 0);havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 71079#L31 assume !(main_~y~0#1 < 0);havoc main_#t~nondet5#1;main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 71080#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 71144#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 73267#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 73268#$Ultimate##0 ~p := #in~p;~q := #in~q; 73270#L20 assume ~p <= 0;#res := 1; 73269#partsFINAL assume true; 73266#partsEXIT >#72#return; 73182#L36-1 havoc main_#t~ret8#1; 71129#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 71096#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 71085#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 71086#$Ultimate##0 ~p := #in~p;~q := #in~q; 74508#L20 assume ~p <= 0;#res := 1; 74507#partsFINAL assume true; 74506#partsEXIT >#72#return; 74481#L36-1 havoc main_#t~ret8#1; 71214#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 71181#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 71157#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 71170#$Ultimate##0 ~p := #in~p;~q := #in~q; 71167#L20 assume ~p <= 0;#res := 1; 71168#partsFINAL assume true; 71156#partsEXIT >#72#return; 71147#L36-1 havoc main_#t~ret8#1; 71128#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 71095#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 71077#L35-4 havoc main_~q~0#1; 71078#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 71094#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 71146#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 71151#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 71276#$Ultimate##0 ~p := #in~p;~q := #in~q; 71321#L20 assume !(~p <= 0); 71320#L21 assume ~q <= 0;#res := 0; 71150#partsFINAL assume true; 71152#partsEXIT >#72#return; 71140#L36-1 havoc main_#t~ret8#1; 71141#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 71273#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 71254#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 71255#$Ultimate##0 ~p := #in~p;~q := #in~q; 72847#L20 assume !(~p <= 0); 72840#L21 assume ~q <= 0;#res := 0; 72841#partsFINAL assume true; 74899#partsEXIT >#72#return; 71142#L36-1 havoc main_#t~ret8#1; 71143#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 71263#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 71252#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 71256#$Ultimate##0 ~p := #in~p;~q := #in~q; 73731#L20 assume !(~p <= 0); 73710#L21 assume !(~q <= 0); 73709#L22 assume !(~q > ~p); 73704#L23 call #t~ret1 := parts(~p - ~q, ~q);< 73706#$Ultimate##0 ~p := #in~p;~q := #in~q; 73719#L20 assume ~p <= 0;#res := 1; 73715#partsFINAL assume true; 73703#partsEXIT >#68#return; 73325#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 73649#$Ultimate##0 ~p := #in~p;~q := #in~q; 73650#L20 assume !(~p <= 0); 74711#L21 assume !(~q <= 0); 74702#L22 assume ~q > ~p; 71098#L22-1 call #t~ret0 := parts(~p, ~p);< 71106#$Ultimate##0 ~p := #in~p;~q := #in~q; 71108#L20 assume !(~p <= 0); 71104#L21 assume !(~q <= 0); 71097#L22 assume !(~q > ~p); 71100#L23 [2023-11-26 11:58:08,007 INFO L750 eck$LassoCheckResult]: Loop: 71100#L23 call #t~ret1 := parts(~p - ~q, ~q);< 74714#$Ultimate##0 ~p := #in~p;~q := #in~q; 74701#L20 assume ~p <= 0;#res := 1; 74697#partsFINAL assume true; 74698#partsEXIT >#68#return; 74678#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 74686#$Ultimate##0 ~p := #in~p;~q := #in~q; 74682#L20 assume !(~p <= 0); 74683#L21 assume !(~q <= 0); 74677#L22 assume !(~q > ~p); 71101#L23 call #t~ret1 := parts(~p - ~q, ~q);< 74696#$Ultimate##0 ~p := #in~p;~q := #in~q; 74668#L20 assume !(~p <= 0); 74669#L21 assume !(~q <= 0); 74665#L22 assume !(~q > ~p); 71100#L23 [2023-11-26 11:58:08,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:08,007 INFO L85 PathProgramCache]: Analyzing trace with hash 601327333, now seen corresponding path program 2 times [2023-11-26 11:58:08,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:08,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65704624] [2023-11-26 11:58:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:58:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:58:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 11:58:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 11:58:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 11:58:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-26 11:58:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 94 proven. 5 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-26 11:58:08,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:08,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65704624] [2023-11-26 11:58:08,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65704624] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:58:08,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946667437] [2023-11-26 11:58:08,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:58:08,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:58:08,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,096 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-26 11:58:08,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:58:08,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:58:08,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:58:08,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:08,194 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-26 11:58:08,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:08,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946667437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:08,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:58:08,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2023-11-26 11:58:08,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713309566] [2023-11-26 11:58:08,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:08,196 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-26 11:58:08,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2099579211, now seen corresponding path program 3 times [2023-11-26 11:58:08,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:08,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010462536] [2023-11-26 11:58:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:08,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:08,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:58:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:08,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:58:08,507 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 11:58:08,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 11:58:08,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 11:58:08,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 11:58:08,507 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 11:58:08,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:08,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 11:58:08,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 11:58:08,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration16_Loop [2023-11-26 11:58:08,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 11:58:08,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 11:58:08,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:08,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:08,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:08,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:08,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 11:58:08,592 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 11:58:08,592 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 11:58:08,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:08,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,594 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:58:08,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:08,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2023-11-26 11:58:08,627 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:58:08,627 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret2=0} Honda state: {parts_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:58:08,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,632 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,636 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:58:08,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:08,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2023-11-26 11:58:08,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:58:08,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret1=0} Honda state: {parts_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:58:08,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:08,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,669 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:58:08,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:08,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2023-11-26 11:58:08,689 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:58:08,690 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#res=0} Honda state: {parts_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:58:08,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:08,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,694 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2023-11-26 11:58:08,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:58:08,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:08,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 11:58:08,709 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret0=0} Honda state: {parts_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 11:58:08,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:08,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,714 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2023-11-26 11:58:08,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 11:58:08,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 11:58:08,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2023-11-26 11:58:08,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 11:58:08,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:08,746 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:08,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6f2d8a-0094-4303-85d6-dc3d582e05da/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2023-11-26 11:58:08,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 11:58:08,749 INFO L160 nArgumentSynthesizer]: Using integer mode.