./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_15-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_15-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB --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 ad13fcacd201ae20f6800b42387b8ec1153fb1bf63cee7a12ec23f4a302be7c7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:07:13,564 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:07:13,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 20:07:13,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:07:13,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:07:13,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:07:13,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:07:13,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:07:13,713 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:07:13,713 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:07:13,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:07:13,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:07:13,715 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:07:13,716 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:07:13,716 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:07:13,716 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:07:13,716 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:07:13,716 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:07:13,716 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:07:13,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:07:13,717 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:07:13,717 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:07:13,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:07:13,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:07:13,718 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:07:13,718 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:07:13,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:07:13,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:07:13,719 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:07:13,719 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:07:13,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:07:13,719 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:07:13,720 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:07:13,720 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:07:13,721 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:07:13,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:07:13,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:07:13,721 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:07:13,721 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:07:13,721 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ad13fcacd201ae20f6800b42387b8ec1153fb1bf63cee7a12ec23f4a302be7c7 [2024-11-27 20:07:14,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:07:14,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:07:14,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:07:14,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:07:14,072 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:07:14,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/locks/test_locks_15-2.c [2024-11-27 20:07:17,105 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/data/0dd730f0c/6928fe796f0b4c0494cbb387299d0e42/FLAG74927f93f [2024-11-27 20:07:17,369 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:07:17,370 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/sv-benchmarks/c/locks/test_locks_15-2.c [2024-11-27 20:07:17,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/data/0dd730f0c/6928fe796f0b4c0494cbb387299d0e42/FLAG74927f93f [2024-11-27 20:07:17,438 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/data/0dd730f0c/6928fe796f0b4c0494cbb387299d0e42 [2024-11-27 20:07:17,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:07:17,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:07:17,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:17,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:07:17,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:07:17,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ff11ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17, skipping insertion in model container [2024-11-27 20:07:17,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:07:17,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:17,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:07:17,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:17,749 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:07:17,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17 WrapperNode [2024-11-27 20:07:17,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:17,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:17,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:07:17,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:07:17,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,805 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 192 [2024-11-27 20:07:17,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:17,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:07:17,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:07:17,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:07:17,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,847 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:07:17,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,857 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:07:17,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:07:17,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:07:17,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:07:17,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (1/1) ... [2024-11-27 20:07:17,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:07:17,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:17,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:07:17,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:07:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:07:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:07:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:07:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:07:18,031 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:07:18,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:07:18,405 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-27 20:07:18,405 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:07:18,423 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:07:18,423 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:07:18,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:18 BoogieIcfgContainer [2024-11-27 20:07:18,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:07:18,424 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:07:18,426 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:07:18,432 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:07:18,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:07:18,433 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:07:17" (1/3) ... [2024-11-27 20:07:18,434 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ebe6206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:07:18, skipping insertion in model container [2024-11-27 20:07:18,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:07:18,435 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:17" (2/3) ... [2024-11-27 20:07:18,435 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ebe6206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:07:18, skipping insertion in model container [2024-11-27 20:07:18,435 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:07:18,435 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:18" (3/3) ... [2024-11-27 20:07:18,437 INFO L363 chiAutomizerObserver]: Analyzing ICFG test_locks_15-2.c [2024-11-27 20:07:18,497 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:07:18,497 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:07:18,497 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:07:18,498 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:07:18,498 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:07:18,498 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:07:18,498 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:07:18,499 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:07:18,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 54 states have internal predecessors, (102), 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) [2024-11-27 20:07:18,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2024-11-27 20:07:18,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:18,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:18,533 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:18,533 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:18,534 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:07:18,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 55 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 54 states have internal predecessors, (102), 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) [2024-11-27 20:07:18,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2024-11-27 20:07:18,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:18,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:18,540 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:18,540 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:18,549 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:18,550 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1;" "assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1;" "assume !(0 != main_~p3~0#1);" "assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1;" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:18,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 20:07:18,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:18,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720300504] [2024-11-27 20:07:18,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:18,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:18,639 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:18,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:18,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:18,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2064553094, now seen corresponding path program 1 times [2024-11-27 20:07:18,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:18,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928175670] [2024-11-27 20:07:18,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:18,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:18,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928175670] [2024-11-27 20:07:18,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928175670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:18,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862896623] [2024-11-27 20:07:18,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:18,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:18,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:18,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:18,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:07:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:18,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:18,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:19,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:19,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862896623] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:19,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:19,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:19,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103516604] [2024-11-27 20:07:19,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:19,131 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:19,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:19,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:19,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:19,164 INFO L87 Difference]: Start difference. First operand has 55 states, 54 states have (on average 1.8888888888888888) internal successors, (102), 54 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:19,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:19,224 INFO L93 Difference]: Finished difference Result 103 states and 189 transitions. [2024-11-27 20:07:19,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 189 transitions. [2024-11-27 20:07:19,231 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2024-11-27 20:07:19,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 95 states and 153 transitions. [2024-11-27 20:07:19,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2024-11-27 20:07:19,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2024-11-27 20:07:19,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 153 transitions. [2024-11-27 20:07:19,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:19,249 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 153 transitions. [2024-11-27 20:07:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 153 transitions. [2024-11-27 20:07:19,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-27 20:07:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.6105263157894736) internal successors, (153), 94 states have internal predecessors, (153), 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) [2024-11-27 20:07:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 153 transitions. [2024-11-27 20:07:19,284 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 153 transitions. [2024-11-27 20:07:19,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:19,289 INFO L425 stractBuchiCegarLoop]: Abstraction has 95 states and 153 transitions. [2024-11-27 20:07:19,289 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:07:19,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 153 transitions. [2024-11-27 20:07:19,291 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2024-11-27 20:07:19,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:19,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:19,292 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:19,292 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:19,292 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:19,292 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1;" "assume !(0 != main_~p3~0#1);" "assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1;" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:19,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-27 20:07:19,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:19,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654391829] [2024-11-27 20:07:19,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:19,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:19,300 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:19,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:19,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:19,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2087185348, now seen corresponding path program 1 times [2024-11-27 20:07:19,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:19,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796406841] [2024-11-27 20:07:19,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:19,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:19,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:19,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796406841] [2024-11-27 20:07:19,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796406841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:19,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594463956] [2024-11-27 20:07:19,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:19,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:19,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:19,392 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:19,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:07:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:19,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:19,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:19,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:19,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594463956] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:19,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:19,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:19,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610510168] [2024-11-27 20:07:19,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:19,603 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:19,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:19,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:19,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:19,605 INFO L87 Difference]: Start difference. First operand 95 states and 153 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:19,646 INFO L93 Difference]: Finished difference Result 186 states and 298 transitions. [2024-11-27 20:07:19,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 298 transitions. [2024-11-27 20:07:19,653 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 184 [2024-11-27 20:07:19,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 186 states and 298 transitions. [2024-11-27 20:07:19,657 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 186 [2024-11-27 20:07:19,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 186 [2024-11-27 20:07:19,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 298 transitions. [2024-11-27 20:07:19,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:19,659 INFO L218 hiAutomatonCegarLoop]: Abstraction has 186 states and 298 transitions. [2024-11-27 20:07:19,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states and 298 transitions. [2024-11-27 20:07:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-11-27 20:07:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 186 states have (on average 1.6021505376344085) internal successors, (298), 185 states have internal predecessors, (298), 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) [2024-11-27 20:07:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 298 transitions. [2024-11-27 20:07:19,674 INFO L240 hiAutomatonCegarLoop]: Abstraction has 186 states and 298 transitions. [2024-11-27 20:07:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:19,675 INFO L425 stractBuchiCegarLoop]: Abstraction has 186 states and 298 transitions. [2024-11-27 20:07:19,675 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:07:19,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 298 transitions. [2024-11-27 20:07:19,677 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 184 [2024-11-27 20:07:19,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:19,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:19,678 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:19,678 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:19,679 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:19,679 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1;" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:19,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:19,680 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-27 20:07:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:19,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927938614] [2024-11-27 20:07:19,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:19,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:19,686 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:19,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:19,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -821578554, now seen corresponding path program 1 times [2024-11-27 20:07:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:19,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53240944] [2024-11-27 20:07:19,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:19,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:19,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:19,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53240944] [2024-11-27 20:07:19,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53240944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:19,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019254870] [2024-11-27 20:07:19,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:19,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:19,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:19,803 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:19,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:07:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:19,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:19,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:19,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:19,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019254870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:19,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:19,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:19,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911773071] [2024-11-27 20:07:19,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:19,994 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:19,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:19,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:19,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:19,995 INFO L87 Difference]: Start difference. First operand 186 states and 298 transitions. cyclomatic complexity: 116 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:20,031 INFO L93 Difference]: Finished difference Result 366 states and 582 transitions. [2024-11-27 20:07:20,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366 states and 582 transitions. [2024-11-27 20:07:20,037 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 364 [2024-11-27 20:07:20,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366 states to 366 states and 582 transitions. [2024-11-27 20:07:20,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 366 [2024-11-27 20:07:20,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 366 [2024-11-27 20:07:20,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 366 states and 582 transitions. [2024-11-27 20:07:20,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:20,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 366 states and 582 transitions. [2024-11-27 20:07:20,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states and 582 transitions. [2024-11-27 20:07:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2024-11-27 20:07:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 366 states have (on average 1.5901639344262295) internal successors, (582), 365 states have internal predecessors, (582), 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) [2024-11-27 20:07:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 582 transitions. [2024-11-27 20:07:20,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 366 states and 582 transitions. [2024-11-27 20:07:20,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:20,081 INFO L425 stractBuchiCegarLoop]: Abstraction has 366 states and 582 transitions. [2024-11-27 20:07:20,081 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 20:07:20,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 582 transitions. [2024-11-27 20:07:20,085 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 364 [2024-11-27 20:07:20,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:20,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:20,086 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:20,086 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:20,086 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:20,086 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1;" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:20,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:20,087 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-27 20:07:20,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:20,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377419829] [2024-11-27 20:07:20,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:20,094 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:20,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:20,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1101649480, now seen corresponding path program 1 times [2024-11-27 20:07:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:20,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778730909] [2024-11-27 20:07:20,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:20,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778730909] [2024-11-27 20:07:20,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778730909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414747215] [2024-11-27 20:07:20,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:20,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:20,175 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:20,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:07:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:20,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:20,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:20,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:20,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414747215] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:20,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:20,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:20,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594426133] [2024-11-27 20:07:20,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:20,342 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:20,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:20,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:20,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:20,342 INFO L87 Difference]: Start difference. First operand 366 states and 582 transitions. cyclomatic complexity: 224 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:20,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:20,370 INFO L93 Difference]: Finished difference Result 722 states and 1138 transitions. [2024-11-27 20:07:20,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 722 states and 1138 transitions. [2024-11-27 20:07:20,379 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 720 [2024-11-27 20:07:20,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 722 states to 722 states and 1138 transitions. [2024-11-27 20:07:20,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 722 [2024-11-27 20:07:20,389 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 722 [2024-11-27 20:07:20,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 722 states and 1138 transitions. [2024-11-27 20:07:20,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:20,399 INFO L218 hiAutomatonCegarLoop]: Abstraction has 722 states and 1138 transitions. [2024-11-27 20:07:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states and 1138 transitions. [2024-11-27 20:07:20,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2024-11-27 20:07:20,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 722 states have (on average 1.5761772853185596) internal successors, (1138), 721 states have internal predecessors, (1138), 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) [2024-11-27 20:07:20,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1138 transitions. [2024-11-27 20:07:20,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 722 states and 1138 transitions. [2024-11-27 20:07:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:20,462 INFO L425 stractBuchiCegarLoop]: Abstraction has 722 states and 1138 transitions. [2024-11-27 20:07:20,462 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 20:07:20,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 722 states and 1138 transitions. [2024-11-27 20:07:20,466 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 720 [2024-11-27 20:07:20,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:20,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:20,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:20,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:20,467 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:20,467 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume 0 != main_~p6~0#1;main_~lk6~0#1 := 1;" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:20,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:20,468 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-11-27 20:07:20,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:20,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144871877] [2024-11-27 20:07:20,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:20,473 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:20,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:20,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:20,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1163689094, now seen corresponding path program 1 times [2024-11-27 20:07:20,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:20,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961142651] [2024-11-27 20:07:20,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:20,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:20,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961142651] [2024-11-27 20:07:20,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961142651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:20,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698410801] [2024-11-27 20:07:20,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:20,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:20,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:20,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:07:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:20,575 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:20,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:20,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:20,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698410801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:20,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:20,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:20,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437326208] [2024-11-27 20:07:20,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:20,666 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:20,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:20,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:20,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:20,667 INFO L87 Difference]: Start difference. First operand 722 states and 1138 transitions. cyclomatic complexity: 432 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:20,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:20,696 INFO L93 Difference]: Finished difference Result 1426 states and 2226 transitions. [2024-11-27 20:07:20,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1426 states and 2226 transitions. [2024-11-27 20:07:20,711 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1424 [2024-11-27 20:07:20,719 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1426 states to 1426 states and 2226 transitions. [2024-11-27 20:07:20,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1426 [2024-11-27 20:07:20,723 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1426 [2024-11-27 20:07:20,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1426 states and 2226 transitions. [2024-11-27 20:07:20,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:20,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1426 states and 2226 transitions. [2024-11-27 20:07:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states and 2226 transitions. [2024-11-27 20:07:20,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2024-11-27 20:07:20,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1426 states have (on average 1.5610098176718092) internal successors, (2226), 1425 states have internal predecessors, (2226), 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) [2024-11-27 20:07:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2226 transitions. [2024-11-27 20:07:20,764 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1426 states and 2226 transitions. [2024-11-27 20:07:20,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:20,768 INFO L425 stractBuchiCegarLoop]: Abstraction has 1426 states and 2226 transitions. [2024-11-27 20:07:20,768 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-27 20:07:20,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1426 states and 2226 transitions. [2024-11-27 20:07:20,777 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1424 [2024-11-27 20:07:20,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:20,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:20,779 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:20,779 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:20,779 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:20,779 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume 0 != main_~p7~0#1;main_~lk7~0#1 := 1;" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:20,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:20,781 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2024-11-27 20:07:20,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:20,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065446763] [2024-11-27 20:07:20,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:20,790 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:20,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:20,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1304237704, now seen corresponding path program 1 times [2024-11-27 20:07:20,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:20,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64506738] [2024-11-27 20:07:20,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:20,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:20,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64506738] [2024-11-27 20:07:20,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64506738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:20,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698037708] [2024-11-27 20:07:20,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:20,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:20,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:20,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:20,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:07:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:20,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:20,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:20,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:21,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698037708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:21,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:21,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:21,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557372870] [2024-11-27 20:07:21,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:21,015 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:21,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:21,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:21,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:21,015 INFO L87 Difference]: Start difference. First operand 1426 states and 2226 transitions. cyclomatic complexity: 832 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:21,051 INFO L93 Difference]: Finished difference Result 2818 states and 4354 transitions. [2024-11-27 20:07:21,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2818 states and 4354 transitions. [2024-11-27 20:07:21,081 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2816 [2024-11-27 20:07:21,099 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2818 states to 2818 states and 4354 transitions. [2024-11-27 20:07:21,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2818 [2024-11-27 20:07:21,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2818 [2024-11-27 20:07:21,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2818 states and 4354 transitions. [2024-11-27 20:07:21,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:21,107 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2818 states and 4354 transitions. [2024-11-27 20:07:21,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states and 4354 transitions. [2024-11-27 20:07:21,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2818. [2024-11-27 20:07:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2818 states have (on average 1.5450674237047552) internal successors, (4354), 2817 states have internal predecessors, (4354), 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) [2024-11-27 20:07:21,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 4354 transitions. [2024-11-27 20:07:21,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2818 states and 4354 transitions. [2024-11-27 20:07:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:21,200 INFO L425 stractBuchiCegarLoop]: Abstraction has 2818 states and 4354 transitions. [2024-11-27 20:07:21,200 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-27 20:07:21,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2818 states and 4354 transitions. [2024-11-27 20:07:21,218 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2816 [2024-11-27 20:07:21,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:21,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:21,218 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:21,219 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:21,219 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:21,219 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume 0 != main_~p8~0#1;main_~lk8~0#1 := 1;" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:21,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:21,219 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2024-11-27 20:07:21,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:21,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367191928] [2024-11-27 20:07:21,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:21,227 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:21,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:21,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:21,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1170224198, now seen corresponding path program 1 times [2024-11-27 20:07:21,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:21,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819667581] [2024-11-27 20:07:21,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:21,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:21,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819667581] [2024-11-27 20:07:21,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819667581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:21,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707660360] [2024-11-27 20:07:21,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:21,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:21,303 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:21,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:07:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:21,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:21,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:21,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:21,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707660360] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:21,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:21,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:21,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774984327] [2024-11-27 20:07:21,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:21,428 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:21,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:21,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:21,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:21,429 INFO L87 Difference]: Start difference. First operand 2818 states and 4354 transitions. cyclomatic complexity: 1600 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:21,478 INFO L93 Difference]: Finished difference Result 5570 states and 8514 transitions. [2024-11-27 20:07:21,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5570 states and 8514 transitions. [2024-11-27 20:07:21,528 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5568 [2024-11-27 20:07:21,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5570 states to 5570 states and 8514 transitions. [2024-11-27 20:07:21,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5570 [2024-11-27 20:07:21,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5570 [2024-11-27 20:07:21,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5570 states and 8514 transitions. [2024-11-27 20:07:21,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:21,576 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5570 states and 8514 transitions. [2024-11-27 20:07:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5570 states and 8514 transitions. [2024-11-27 20:07:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5570 to 5570. [2024-11-27 20:07:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5570 states, 5570 states have (on average 1.5285457809694794) internal successors, (8514), 5569 states have internal predecessors, (8514), 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) [2024-11-27 20:07:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5570 states to 5570 states and 8514 transitions. [2024-11-27 20:07:21,747 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5570 states and 8514 transitions. [2024-11-27 20:07:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:21,750 INFO L425 stractBuchiCegarLoop]: Abstraction has 5570 states and 8514 transitions. [2024-11-27 20:07:21,750 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-27 20:07:21,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5570 states and 8514 transitions. [2024-11-27 20:07:21,786 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5568 [2024-11-27 20:07:21,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:21,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:21,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:21,789 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:21,789 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:21,789 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume 0 != main_~p9~0#1;main_~lk9~0#1 := 1;" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:21,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:21,790 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 8 times [2024-11-27 20:07:21,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:21,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241902946] [2024-11-27 20:07:21,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:21,799 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:21,805 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:21,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:21,805 INFO L85 PathProgramCache]: Analyzing trace with hash -635214136, now seen corresponding path program 1 times [2024-11-27 20:07:21,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:21,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039660495] [2024-11-27 20:07:21,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:21,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:21,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039660495] [2024-11-27 20:07:21,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039660495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:21,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875502741] [2024-11-27 20:07:21,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:21,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:21,856 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:21,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:07:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:21,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:21,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:21,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:22,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875502741] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:22,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:22,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:22,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384519491] [2024-11-27 20:07:22,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:22,014 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:22,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:22,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:22,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:22,016 INFO L87 Difference]: Start difference. First operand 5570 states and 8514 transitions. cyclomatic complexity: 3072 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:22,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:22,102 INFO L93 Difference]: Finished difference Result 11010 states and 16642 transitions. [2024-11-27 20:07:22,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11010 states and 16642 transitions. [2024-11-27 20:07:22,190 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 11008 [2024-11-27 20:07:22,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11010 states to 11010 states and 16642 transitions. [2024-11-27 20:07:22,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11010 [2024-11-27 20:07:22,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11010 [2024-11-27 20:07:22,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11010 states and 16642 transitions. [2024-11-27 20:07:22,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:22,293 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11010 states and 16642 transitions. [2024-11-27 20:07:22,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states and 16642 transitions. [2024-11-27 20:07:22,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 11010. [2024-11-27 20:07:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11010 states, 11010 states have (on average 1.5115349682107175) internal successors, (16642), 11009 states have internal predecessors, (16642), 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) [2024-11-27 20:07:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11010 states to 11010 states and 16642 transitions. [2024-11-27 20:07:22,595 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11010 states and 16642 transitions. [2024-11-27 20:07:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:22,597 INFO L425 stractBuchiCegarLoop]: Abstraction has 11010 states and 16642 transitions. [2024-11-27 20:07:22,598 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-27 20:07:22,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11010 states and 16642 transitions. [2024-11-27 20:07:22,645 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 11008 [2024-11-27 20:07:22,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:22,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:22,646 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:22,646 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:22,646 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:22,646 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume 0 != main_~p10~0#1;main_~lk10~0#1 := 1;" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:22,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:22,647 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 9 times [2024-11-27 20:07:22,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:22,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511795762] [2024-11-27 20:07:22,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:22,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:22,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:22,654 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:22,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:22,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:22,666 INFO L85 PathProgramCache]: Analyzing trace with hash -416359418, now seen corresponding path program 1 times [2024-11-27 20:07:22,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:22,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754776714] [2024-11-27 20:07:22,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:22,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:22,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:22,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754776714] [2024-11-27 20:07:22,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754776714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:22,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947754185] [2024-11-27 20:07:22,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:22,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:22,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:22,721 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:22,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:07:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:22,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:22,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:22,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:22,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947754185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:22,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:22,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:22,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889566014] [2024-11-27 20:07:22,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:22,866 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:22,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:22,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:22,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:22,868 INFO L87 Difference]: Start difference. First operand 11010 states and 16642 transitions. cyclomatic complexity: 5888 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:22,961 INFO L93 Difference]: Finished difference Result 21762 states and 32514 transitions. [2024-11-27 20:07:22,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21762 states and 32514 transitions. [2024-11-27 20:07:23,154 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 21760 [2024-11-27 20:07:23,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21762 states to 21762 states and 32514 transitions. [2024-11-27 20:07:23,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21762 [2024-11-27 20:07:23,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21762 [2024-11-27 20:07:23,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21762 states and 32514 transitions. [2024-11-27 20:07:23,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:23,297 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21762 states and 32514 transitions. [2024-11-27 20:07:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21762 states and 32514 transitions. [2024-11-27 20:07:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21762 to 21762. [2024-11-27 20:07:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21762 states, 21762 states have (on average 1.4940722360077199) internal successors, (32514), 21761 states have internal predecessors, (32514), 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) [2024-11-27 20:07:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21762 states to 21762 states and 32514 transitions. [2024-11-27 20:07:23,696 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21762 states and 32514 transitions. [2024-11-27 20:07:23,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:23,697 INFO L425 stractBuchiCegarLoop]: Abstraction has 21762 states and 32514 transitions. [2024-11-27 20:07:23,697 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-27 20:07:23,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21762 states and 32514 transitions. [2024-11-27 20:07:23,763 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 21760 [2024-11-27 20:07:23,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:23,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:23,764 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:23,764 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:23,764 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:23,764 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume 0 != main_~p12~0#1;main_~lk12~0#1 := 1;" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:23,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:23,765 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 10 times [2024-11-27 20:07:23,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:23,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182309365] [2024-11-27 20:07:23,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:23,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:23,769 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:23,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:23,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:23,773 INFO L85 PathProgramCache]: Analyzing trace with hash 6342408, now seen corresponding path program 1 times [2024-11-27 20:07:23,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:23,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355026937] [2024-11-27 20:07:23,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:23,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:23,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:23,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355026937] [2024-11-27 20:07:23,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355026937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:23,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646361655] [2024-11-27 20:07:23,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:23,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:23,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:23,807 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:23,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:07:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:23,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:23,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:23,898 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:23,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646361655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:23,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:23,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:23,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901738325] [2024-11-27 20:07:23,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:23,928 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:23,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:23,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:23,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:23,929 INFO L87 Difference]: Start difference. First operand 21762 states and 32514 transitions. cyclomatic complexity: 11264 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:24,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:24,142 INFO L93 Difference]: Finished difference Result 43010 states and 63490 transitions. [2024-11-27 20:07:24,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43010 states and 63490 transitions. [2024-11-27 20:07:24,488 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 43008 [2024-11-27 20:07:24,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43010 states to 43010 states and 63490 transitions. [2024-11-27 20:07:24,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43010 [2024-11-27 20:07:24,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43010 [2024-11-27 20:07:24,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43010 states and 63490 transitions. [2024-11-27 20:07:24,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:24,771 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43010 states and 63490 transitions. [2024-11-27 20:07:24,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43010 states and 63490 transitions. [2024-11-27 20:07:25,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43010 to 43010. [2024-11-27 20:07:25,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43010 states, 43010 states have (on average 1.4761683329458266) internal successors, (63490), 43009 states have internal predecessors, (63490), 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) [2024-11-27 20:07:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43010 states to 43010 states and 63490 transitions. [2024-11-27 20:07:25,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43010 states and 63490 transitions. [2024-11-27 20:07:25,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:25,865 INFO L425 stractBuchiCegarLoop]: Abstraction has 43010 states and 63490 transitions. [2024-11-27 20:07:25,865 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-27 20:07:25,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43010 states and 63490 transitions. [2024-11-27 20:07:25,984 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 43008 [2024-11-27 20:07:25,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:25,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:25,985 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:25,985 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:25,985 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:25,985 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume 0 != main_~p13~0#1;main_~lk13~0#1 := 1;" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:25,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:25,986 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 11 times [2024-11-27 20:07:25,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:25,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544977681] [2024-11-27 20:07:25,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:25,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:25,990 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:25,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:25,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:25,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1682601334, now seen corresponding path program 1 times [2024-11-27 20:07:25,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:25,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139734346] [2024-11-27 20:07:25,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:25,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:26,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139734346] [2024-11-27 20:07:26,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139734346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:26,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900522633] [2024-11-27 20:07:26,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:26,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:26,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:26,045 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:26,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:07:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:26,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:26,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:26,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:26,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900522633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:26,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:26,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:26,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985957102] [2024-11-27 20:07:26,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:26,168 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:26,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:26,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:26,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:26,168 INFO L87 Difference]: Start difference. First operand 43010 states and 63490 transitions. cyclomatic complexity: 21504 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:26,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:26,433 INFO L93 Difference]: Finished difference Result 84994 states and 123906 transitions. [2024-11-27 20:07:26,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84994 states and 123906 transitions. [2024-11-27 20:07:26,921 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 84992 [2024-11-27 20:07:27,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84994 states to 84994 states and 123906 transitions. [2024-11-27 20:07:27,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84994 [2024-11-27 20:07:27,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84994 [2024-11-27 20:07:27,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84994 states and 123906 transitions. [2024-11-27 20:07:27,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:27,404 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84994 states and 123906 transitions. [2024-11-27 20:07:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84994 states and 123906 transitions. [2024-11-27 20:07:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84994 to 84994. [2024-11-27 20:07:28,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84994 states, 84994 states have (on average 1.4578205520389675) internal successors, (123906), 84993 states have internal predecessors, (123906), 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) [2024-11-27 20:07:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84994 states to 84994 states and 123906 transitions. [2024-11-27 20:07:28,844 INFO L240 hiAutomatonCegarLoop]: Abstraction has 84994 states and 123906 transitions. [2024-11-27 20:07:28,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:28,845 INFO L425 stractBuchiCegarLoop]: Abstraction has 84994 states and 123906 transitions. [2024-11-27 20:07:28,845 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-27 20:07:28,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84994 states and 123906 transitions. [2024-11-27 20:07:29,091 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 84992 [2024-11-27 20:07:29,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:29,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:29,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:29,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:29,092 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:29,092 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume 0 != main_~p14~0#1;main_~lk14~0#1 := 1;" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:29,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:29,093 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 12 times [2024-11-27 20:07:29,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:29,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982550747] [2024-11-27 20:07:29,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:29,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:29,097 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:29,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:29,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:29,102 INFO L85 PathProgramCache]: Analyzing trace with hash 618221256, now seen corresponding path program 1 times [2024-11-27 20:07:29,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:29,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222977546] [2024-11-27 20:07:29,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:29,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:29,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:29,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222977546] [2024-11-27 20:07:29,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222977546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:29,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914831316] [2024-11-27 20:07:29,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:29,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:29,140 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:29,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:07:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:29,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:29,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:29,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:29,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914831316] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:29,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:29,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 20:07:29,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111747220] [2024-11-27 20:07:29,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:29,257 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:29,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:29,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:29,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:29,258 INFO L87 Difference]: Start difference. First operand 84994 states and 123906 transitions. cyclomatic complexity: 40960 Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:30,083 INFO L93 Difference]: Finished difference Result 167938 states and 241666 transitions. [2024-11-27 20:07:30,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167938 states and 241666 transitions. [2024-11-27 20:07:30,592 INFO L131 ngComponentsAnalysis]: Automaton has 4096 accepting balls. 167936 [2024-11-27 20:07:31,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167938 states to 167938 states and 241666 transitions. [2024-11-27 20:07:31,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167938 [2024-11-27 20:07:31,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167938 [2024-11-27 20:07:31,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167938 states and 241666 transitions. [2024-11-27 20:07:31,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:31,624 INFO L218 hiAutomatonCegarLoop]: Abstraction has 167938 states and 241666 transitions. [2024-11-27 20:07:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167938 states and 241666 transitions. [2024-11-27 20:07:33,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167938 to 167938. [2024-11-27 20:07:33,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167938 states, 167938 states have (on average 1.4390191618335337) internal successors, (241666), 167937 states have internal predecessors, (241666), 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) [2024-11-27 20:07:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167938 states to 167938 states and 241666 transitions. [2024-11-27 20:07:33,911 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167938 states and 241666 transitions. [2024-11-27 20:07:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:33,912 INFO L425 stractBuchiCegarLoop]: Abstraction has 167938 states and 241666 transitions. [2024-11-27 20:07:33,912 INFO L332 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2024-11-27 20:07:33,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167938 states and 241666 transitions. [2024-11-27 20:07:34,808 INFO L131 ngComponentsAnalysis]: Automaton has 4096 accepting balls. 167936 [2024-11-27 20:07:34,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:34,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:34,810 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:34,810 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:34,810 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:34,810 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume 0 != main_~p15~0#1;main_~lk15~0#1 := 1;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:34,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 13 times [2024-11-27 20:07:34,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:34,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692904756] [2024-11-27 20:07:34,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:34,815 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:34,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:34,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash -970126646, now seen corresponding path program 1 times [2024-11-27 20:07:34,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:34,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952068173] [2024-11-27 20:07:34,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:34,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:34,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:07:34,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952068173] [2024-11-27 20:07:34,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952068173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:34,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138285996] [2024-11-27 20:07:34,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:34,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:34,859 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:34,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:07:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:34,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:07:34,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:34,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:34,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138285996] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:34,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:34,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-27 20:07:34,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674966467] [2024-11-27 20:07:34,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:34,972 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:07:34,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:07:34,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:34,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:34,973 INFO L87 Difference]: Start difference. First operand 167938 states and 241666 transitions. cyclomatic complexity: 77824 Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:07:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:36,179 INFO L93 Difference]: Finished difference Result 331778 states and 471042 transitions. [2024-11-27 20:07:36,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331778 states and 471042 transitions. [2024-11-27 20:07:37,668 INFO L131 ngComponentsAnalysis]: Automaton has 8192 accepting balls. 331776 [2024-11-27 20:07:38,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331778 states to 331778 states and 471042 transitions. [2024-11-27 20:07:38,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 331778 [2024-11-27 20:07:38,307 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 331778 [2024-11-27 20:07:38,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 331778 states and 471042 transitions. [2024-11-27 20:07:38,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:07:38,907 INFO L218 hiAutomatonCegarLoop]: Abstraction has 331778 states and 471042 transitions. [2024-11-27 20:07:38,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331778 states and 471042 transitions. [2024-11-27 20:07:41,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331778 to 331778. [2024-11-27 20:07:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331778 states, 331778 states have (on average 1.419750556094738) internal successors, (471042), 331777 states have internal predecessors, (471042), 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) [2024-11-27 20:07:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331778 states to 331778 states and 471042 transitions. [2024-11-27 20:07:43,417 INFO L240 hiAutomatonCegarLoop]: Abstraction has 331778 states and 471042 transitions. [2024-11-27 20:07:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:43,418 INFO L425 stractBuchiCegarLoop]: Abstraction has 331778 states and 471042 transitions. [2024-11-27 20:07:43,418 INFO L332 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2024-11-27 20:07:43,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331778 states and 471042 transitions. [2024-11-27 20:07:44,171 INFO L131 ngComponentsAnalysis]: Automaton has 8192 accepting balls. 331776 [2024-11-27 20:07:44,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:07:44,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:07:44,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 20:07:44,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:44,175 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~p8~0#1, main_~lk8~0#1, main_~p9~0#1, main_~lk9~0#1, main_~p10~0#1, main_~lk10~0#1, main_~p11~0#1, main_~lk11~0#1, main_~p12~0#1, main_~lk12~0#1, main_~p13~0#1, main_~lk13~0#1, main_~p14~0#1, main_~lk14~0#1, main_~p15~0#1, main_~lk15~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_#t~nondet11#1;main_~p8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_~lk8~0#1;havoc main_#t~nondet12#1;main_~p9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1;havoc main_~lk9~0#1;havoc main_#t~nondet13#1;main_~p10~0#1 := main_#t~nondet13#1;havoc main_#t~nondet13#1;havoc main_~lk10~0#1;havoc main_#t~nondet14#1;main_~p11~0#1 := main_#t~nondet14#1;havoc main_#t~nondet14#1;havoc main_~lk11~0#1;havoc main_#t~nondet15#1;main_~p12~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_~lk12~0#1;havoc main_#t~nondet16#1;main_~p13~0#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~lk13~0#1;havoc main_#t~nondet17#1;main_~p14~0#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_~lk14~0#1;havoc main_#t~nondet18#1;main_~p15~0#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~lk15~0#1;havoc main_~cond~0#1;" [2024-11-27 20:07:44,175 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet19#1;main_~cond~0#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;" "assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0;main_~lk6~0#1 := 0;main_~lk7~0#1 := 0;main_~lk8~0#1 := 0;main_~lk9~0#1 := 0;main_~lk10~0#1 := 0;main_~lk11~0#1 := 0;main_~lk12~0#1 := 0;main_~lk13~0#1 := 0;main_~lk14~0#1 := 0;main_~lk15~0#1 := 0;" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" "assume !(0 != main_~p1~0#1);" "assume !(0 != main_~p2~0#1);" "assume !(0 != main_~p3~0#1);" "assume !(0 != main_~p4~0#1);" "assume !(0 != main_~p5~0#1);" "assume !(0 != main_~p6~0#1);" "assume !(0 != main_~p7~0#1);" "assume !(0 != main_~p8~0#1);" "assume !(0 != main_~p9~0#1);" "assume !(0 != main_~p10~0#1);" "assume !(0 != main_~p11~0#1);" "assume !(0 != main_~p12~0#1);" "assume !(0 != main_~p13~0#1);" "assume !(0 != main_~p14~0#1);" "assume !(0 != main_~p15~0#1);" [2024-11-27 20:07:44,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:44,175 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 14 times [2024-11-27 20:07:44,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:44,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251456943] [2024-11-27 20:07:44,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:44,181 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:44,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:44,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:44,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1991195000, now seen corresponding path program 1 times [2024-11-27 20:07:44,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:44,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900388075] [2024-11-27 20:07:44,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:44,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:44,192 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:44,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:44,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1845576266, now seen corresponding path program 1 times [2024-11-27 20:07:44,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:07:44,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862153049] [2024-11-27 20:07:44,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:44,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:44,226 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:44,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:07:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:45,789 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:07:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:07:45,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:07:45 BoogieIcfgContainer [2024-11-27 20:07:45,850 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:07:45,850 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:07:45,851 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:07:45,851 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:07:45,852 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:18" (3/4) ... [2024-11-27 20:07:45,853 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 20:07:45,905 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:07:45,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:07:45,906 INFO L158 Benchmark]: Toolchain (without parser) took 28463.30ms. Allocated memory was 142.6MB in the beginning and 13.7GB in the end (delta: 13.6GB). Free memory was 119.7MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-11-27 20:07:45,907 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:07:45,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.15ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 107.8MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:07:45,907 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.17ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:07:45,909 INFO L158 Benchmark]: Boogie Preprocessor took 68.95ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:07:45,909 INFO L158 Benchmark]: RCFGBuilder took 544.32ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 87.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:07:45,910 INFO L158 Benchmark]: BuchiAutomizer took 27425.29ms. Allocated memory was 142.6MB in the beginning and 13.7GB in the end (delta: 13.6GB). Free memory was 87.7MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-11-27 20:07:45,910 INFO L158 Benchmark]: Witness Printer took 55.20ms. Allocated memory is still 13.7GB. Free memory was 11.1GB in the beginning and 11.1GB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:07:45,914 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.15ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 107.8MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.17ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 106.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.95ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 544.32ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 87.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 27425.29ms. Allocated memory was 142.6MB in the beginning and 13.7GB in the end (delta: 13.6GB). Free memory was 87.7MB in the beginning and 11.1GB in the end (delta: -11.0GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 55.20ms. Allocated memory is still 13.7GB. Free memory was 11.1GB in the beginning and 11.1GB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (13 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.13 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 331778 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 27.3s and 14 iterations. TraceHistogramMax:1. Analysis of lassos took 4.8s. Construction of modules took 0.1s. Büchi inclusion checks took 20.0s. Highest rank in rank-based complementation 0. Minimization of det autom 13. Minimization of nondet autom 0. Automata minimization 10.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 5.4s Buchi closure took 0.3s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 797 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 797 mSDsluCounter, 2495 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 966 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 1529 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI13 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 56]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; Loop: [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND FALSE !(p3 != 0) [L105] COND FALSE !(p4 != 0) [L109] COND FALSE !(p5 != 0) [L113] COND FALSE !(p6 != 0) [L117] COND FALSE !(p7 != 0) [L121] COND FALSE !(p8 != 0) [L125] COND FALSE !(p9 != 0) [L129] COND FALSE !(p10 != 0) [L133] COND FALSE !(p11 != 0) [L137] COND FALSE !(p12 != 0) [L141] COND FALSE !(p13 != 0) [L145] COND FALSE !(p14 != 0) [L149] COND FALSE !(p15 != 0) [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L165] COND FALSE !(p3 != 0) [L170] COND FALSE !(p4 != 0) [L175] COND FALSE !(p5 != 0) [L180] COND FALSE !(p6 != 0) [L185] COND FALSE !(p7 != 0) [L190] COND FALSE !(p8 != 0) [L195] COND FALSE !(p9 != 0) [L200] COND FALSE !(p10 != 0) [L205] COND FALSE !(p11 != 0) [L210] COND FALSE !(p12 != 0) [L215] COND FALSE !(p13 != 0) [L220] COND FALSE !(p14 != 0) [L225] COND FALSE !(p15 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 56]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; Loop: [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND FALSE !(p3 != 0) [L105] COND FALSE !(p4 != 0) [L109] COND FALSE !(p5 != 0) [L113] COND FALSE !(p6 != 0) [L117] COND FALSE !(p7 != 0) [L121] COND FALSE !(p8 != 0) [L125] COND FALSE !(p9 != 0) [L129] COND FALSE !(p10 != 0) [L133] COND FALSE !(p11 != 0) [L137] COND FALSE !(p12 != 0) [L141] COND FALSE !(p13 != 0) [L145] COND FALSE !(p14 != 0) [L149] COND FALSE !(p15 != 0) [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L165] COND FALSE !(p3 != 0) [L170] COND FALSE !(p4 != 0) [L175] COND FALSE !(p5 != 0) [L180] COND FALSE !(p6 != 0) [L185] COND FALSE !(p7 != 0) [L190] COND FALSE !(p8 != 0) [L195] COND FALSE !(p9 != 0) [L200] COND FALSE !(p10 != 0) [L205] COND FALSE !(p11 != 0) [L210] COND FALSE !(p12 != 0) [L215] COND FALSE !(p13 != 0) [L220] COND FALSE !(p14 != 0) [L225] COND FALSE !(p15 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 20:07:45,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:46,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:46,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:46,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:46,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:07:46,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:47,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:47,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:47,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:47,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:47,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:48,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:48,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:07:48,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca09ee1-ac89-407d-81ae-b10247e7684e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)