./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce7adad8a0888347d25c990302f1d2465b94eb9b4e09c5836441e334d4180501 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:24,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:24,747 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:16:24,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:24,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:24,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:24,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:24,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:24,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:16:24,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:16:24,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:24,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:24,801 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:24,801 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:16:24,804 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:16:24,804 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:16:24,805 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:16:24,805 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:16:24,805 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:16:24,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:24,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:16:24,809 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:24,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:24,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:24,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:24,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:16:24,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:16:24,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:16:24,815 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:24,815 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:24,815 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:24,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:24,817 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:16:24,817 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:24,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:24,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:24,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:24,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:24,820 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:16:24,820 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_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7adad8a0888347d25c990302f1d2465b94eb9b4e09c5836441e334d4180501 [2024-10-31 22:16:25,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:25,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:25,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:25,248 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:25,248 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:25,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i Unable to find full path for "g++" [2024-10-31 22:16:27,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:27,570 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:27,570 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/sv-benchmarks/c/termination-nla/knuth-nosqrt-both-t.i [2024-10-31 22:16:27,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/data/a6fdb5a3d/dba7665746e14fd1a37f7e2a8322eae3/FLAGc71b60abf [2024-10-31 22:16:27,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/data/a6fdb5a3d/dba7665746e14fd1a37f7e2a8322eae3 [2024-10-31 22:16:27,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:27,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:27,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:27,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:27,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:27,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1daad549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27, skipping insertion in model container [2024-10-31 22:16:27,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:27,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:27,877 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:27,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:27,920 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:27,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27 WrapperNode [2024-10-31 22:16:27,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:27,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:27,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:27,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:27,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,958 INFO L138 Inliner]: procedures = 5, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-10-31 22:16:27,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:27,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:27,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:27,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:27,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,981 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:16:27,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:27,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:27,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:27,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:27,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:27,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (1/1) ... [2024-10-31 22:16:28,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:16:28,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:28,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:28,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:28,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:28,131 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:28,133 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:28,341 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-31 22:16:28,341 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:28,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:28,356 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:16:28,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:28 BoogieIcfgContainer [2024-10-31 22:16:28,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:28,359 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:16:28,359 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:16:28,363 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:16:28,364 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:28,364 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:16:27" (1/3) ... [2024-10-31 22:16:28,365 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f135606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:28, skipping insertion in model container [2024-10-31 22:16:28,366 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:28,366 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:27" (2/3) ... [2024-10-31 22:16:28,366 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f135606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:16:28, skipping insertion in model container [2024-10-31 22:16:28,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:16:28,367 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:28" (3/3) ... [2024-10-31 22:16:28,369 INFO L332 chiAutomizerObserver]: Analyzing ICFG knuth-nosqrt-both-t.i [2024-10-31 22:16:28,430 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:16:28,430 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:16:28,430 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:16:28,430 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:16:28,431 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:16:28,431 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:16:28,431 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:16:28,431 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:16:28,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:28,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:16:28,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:28,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:28,463 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:16:28,463 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:28,464 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:16:28,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:28,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:16:28,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:16:28,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:16:28,466 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 22:16:28,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:16:28,473 INFO L745 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_~s~0#1, main_~a~0#1, main_~r~0#1, main_~k~0#1, main_~q~0#1, main_~d~0#1, main_~n~0#1, main_~t~0#1;havoc main_~s~0#1;havoc main_~a~0#1;havoc main_~r~0#1;havoc main_~k~0#1;havoc main_~q~0#1;havoc main_~d~0#1;havoc main_~n~0#1;havoc main_~t~0#1;havoc main_#t~nondet1#1;main_~s~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~a~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 3#L15true assume !(main_~s~0#1 % 4294967296 >= 8192); 7#L18true assume !(main_~a~0#1 % 4294967296 <= 2);main_~n~0#1 := main_~s~0#1 * main_~s~0#1;main_~d~0#1 := main_~a~0#1;main_~r~0#1 := main_~n~0#1 % 4294967296 % (main_~d~0#1 % 4294967296);main_~t~0#1 := 0;main_~k~0#1 := main_~n~0#1 % 4294967296 % ((main_~d~0#1 - 2) % 4294967296);main_~q~0#1 := 4 * (main_~n~0#1 % 4294967296 / ((main_~d~0#1 - 2) % 4294967296) - main_~n~0#1 % 4294967296 / (main_~d~0#1 % 4294967296)); 9#L40-2true [2024-10-31 22:16:28,474 INFO L747 eck$LassoCheckResult]: Loop: 9#L40-2true assume !false; 10#L28true assume !!((main_~s~0#1 + main_~d~0#1 * main_~k~0#1 - main_~d~0#1 * main_~t~0#1 - main_~a~0#1 * main_~k~0#1 + main_~a~0#1 * main_~t~0#1) % 4294967296 >= main_~d~0#1 % 4294967296 && 0 != main_~r~0#1 % 4294967296); 4#L29true assume (2 * main_~r~0#1 + main_~q~0#1) % 4294967296 < main_~k~0#1 % 4294967296;main_~t~0#1 := main_~r~0#1;main_~r~0#1 := 2 + (2 * main_~r~0#1 - main_~k~0#1 + main_~q~0#1 + main_~d~0#1);main_~k~0#1 := main_~t~0#1;main_~q~0#1 := 4 + main_~q~0#1;main_~d~0#1 := 2 + main_~d~0#1; 9#L40-2true [2024-10-31 22:16:28,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-31 22:16:28,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:28,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704212429] [2024-10-31 22:16:28,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:28,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:16:28,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250159320] [2024-10-31 22:16:28,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:28,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:28,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:28,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:28,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:16:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:28,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:28,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:28,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:28,887 INFO L85 PathProgramCache]: Analyzing trace with hash 50807, now seen corresponding path program 1 times [2024-10-31 22:16:28,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:28,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682886879] [2024-10-31 22:16:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:28,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:16:28,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739448382] [2024-10-31 22:16:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:28,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:28,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:28,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:28,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:16:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:28,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:16:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:16:28,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:16:28,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1806911792, now seen corresponding path program 1 times [2024-10-31 22:16:28,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:28,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178943941] [2024-10-31 22:16:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:28,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:16:29,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911552923] [2024-10-31 22:16:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:29,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:29,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:29,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:29,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde76250-e8b0-445e-9c0c-910cd3041375/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process