./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_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_15-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1 --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 [2024-12-02 13:17:23,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:17:23,814 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 13:17:23,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:17:23,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:17:23,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:17:23,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:17:23,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:17:23,842 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:17:23,842 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:17:23,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:17:23,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:17:23,842 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:17:23,843 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 13:17:23,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:17:23,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:17:23,844 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:17:23,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:17:23,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:17:23,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:17:23,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 13:17:23,845 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 13:17:23,845 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_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 13:17:24,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:17:24,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:17:24,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:17:24,106 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:17:24,106 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:17:24,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/locks/test_locks_15-2.c [2024-12-02 13:17:26,840 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/data/1ef76b408/b67097f4a018465bbbbacd14363420dc/FLAG24b5c9438 [2024-12-02 13:17:27,081 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:17:27,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/sv-benchmarks/c/locks/test_locks_15-2.c [2024-12-02 13:17:27,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/data/1ef76b408/b67097f4a018465bbbbacd14363420dc/FLAG24b5c9438 [2024-12-02 13:17:27,104 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/data/1ef76b408/b67097f4a018465bbbbacd14363420dc [2024-12-02 13:17:27,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:17:27,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:17:27,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:17:27,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:17:27,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:17:27,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9d5ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27, skipping insertion in model container [2024-12-02 13:17:27,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,136 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:17:27,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:17:27,323 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:17:27,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:17:27,364 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:17:27,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27 WrapperNode [2024-12-02 13:17:27,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:17:27,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:17:27,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:17:27,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:17:27,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,399 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 192 [2024-12-02 13:17:27,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:17:27,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:17:27,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:17:27,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:17:27,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,412 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,423 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]. [2024-12-02 13:17:27,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,427 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:17:27,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:17:27,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:17:27,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:17:27,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (1/1) ... [2024-12-02 13:17:27,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 13:17:27,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:27,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 13:17:27,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 13:17:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:17:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:17:27,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:17:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:17:27,560 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:17:27,562 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:17:27,810 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-12-02 13:17:27,810 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:17:27,821 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:17:27,821 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:17:27,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:17:27 BoogieIcfgContainer [2024-12-02 13:17:27,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:17:27,822 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 13:17:27,822 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 13:17:27,828 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 13:17:27,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:17:27,828 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:17:27" (1/3) ... [2024-12-02 13:17:27,829 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@394f197f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:17:27, skipping insertion in model container [2024-12-02 13:17:27,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:17:27,829 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:17:27" (2/3) ... [2024-12-02 13:17:27,830 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@394f197f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:17:27, skipping insertion in model container [2024-12-02 13:17:27,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 13:17:27,830 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:17:27" (3/3) ... [2024-12-02 13:17:27,831 INFO L363 chiAutomizerObserver]: Analyzing ICFG test_locks_15-2.c [2024-12-02 13:17:27,882 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 13:17:27,882 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 13:17:27,883 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 13:17:27,883 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 13:17:27,883 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 13:17:27,883 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 13:17:27,883 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 13:17:27,883 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 13:17:27,888 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) [2024-12-02 13:17:27,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2024-12-02 13:17:27,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:27,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:27,907 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:27,907 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] [2024-12-02 13:17:27,908 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 13:17:27,908 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) [2024-12-02 13:17:27,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2024-12-02 13:17:27,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:27,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:27,911 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:27,911 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] [2024-12-02 13:17:27,916 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;" [2024-12-02 13:17:27,917 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);" [2024-12-02 13:17:27,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-12-02 13:17:27,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:27,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667456814] [2024-12-02 13:17:27,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:27,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:27,989 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:28,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:28,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2064553094, now seen corresponding path program 1 times [2024-12-02 13:17:28,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:28,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618975896] [2024-12-02 13:17:28,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:28,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618975896] [2024-12-02 13:17:28,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618975896] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:28,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927429228] [2024-12-02 13:17:28,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:28,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:28,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:28,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:17:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:28,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:28,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:28,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927429228] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:28,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:28,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630905871] [2024-12-02 13:17:28,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:28,288 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:28,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:28,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:28,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:28,312 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) [2024-12-02 13:17:28,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:28,352 INFO L93 Difference]: Finished difference Result 103 states and 189 transitions. [2024-12-02 13:17:28,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 189 transitions. [2024-12-02 13:17:28,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2024-12-02 13:17:28,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 95 states and 153 transitions. [2024-12-02 13:17:28,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2024-12-02 13:17:28,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2024-12-02 13:17:28,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 153 transitions. [2024-12-02 13:17:28,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:28,376 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 153 transitions. [2024-12-02 13:17:28,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 153 transitions. [2024-12-02 13:17:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-12-02 13:17:28,400 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) [2024-12-02 13:17:28,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 153 transitions. [2024-12-02 13:17:28,402 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 153 transitions. [2024-12-02 13:17:28,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:28,406 INFO L425 stractBuchiCegarLoop]: Abstraction has 95 states and 153 transitions. [2024-12-02 13:17:28,406 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 13:17:28,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 153 transitions. [2024-12-02 13:17:28,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 93 [2024-12-02 13:17:28,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:28,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:28,408 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:28,408 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] [2024-12-02 13:17:28,408 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;" [2024-12-02 13:17:28,408 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);" [2024-12-02 13:17:28,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:28,409 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-12-02 13:17:28,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:28,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658736181] [2024-12-02 13:17:28,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:28,417 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:28,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:28,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:28,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2087185348, now seen corresponding path program 1 times [2024-12-02 13:17:28,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:28,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572537399] [2024-12-02 13:17:28,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:28,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572537399] [2024-12-02 13:17:28,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572537399] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:28,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322177671] [2024-12-02 13:17:28,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:28,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:28,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:28,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:17:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:28,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:28,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:28,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322177671] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:28,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:28,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443003836] [2024-12-02 13:17:28,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:28,618 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:28,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:28,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:28,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:28,619 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) [2024-12-02 13:17:28,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:28,646 INFO L93 Difference]: Finished difference Result 186 states and 298 transitions. [2024-12-02 13:17:28,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 298 transitions. [2024-12-02 13:17:28,649 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 184 [2024-12-02 13:17:28,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 186 states and 298 transitions. [2024-12-02 13:17:28,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 186 [2024-12-02 13:17:28,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 186 [2024-12-02 13:17:28,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 186 states and 298 transitions. [2024-12-02 13:17:28,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:28,652 INFO L218 hiAutomatonCegarLoop]: Abstraction has 186 states and 298 transitions. [2024-12-02 13:17:28,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states and 298 transitions. [2024-12-02 13:17:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2024-12-02 13:17:28,661 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) [2024-12-02 13:17:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 298 transitions. [2024-12-02 13:17:28,662 INFO L240 hiAutomatonCegarLoop]: Abstraction has 186 states and 298 transitions. [2024-12-02 13:17:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:28,663 INFO L425 stractBuchiCegarLoop]: Abstraction has 186 states and 298 transitions. [2024-12-02 13:17:28,663 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 13:17:28,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 186 states and 298 transitions. [2024-12-02 13:17:28,665 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 184 [2024-12-02 13:17:28,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:28,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:28,666 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:28,666 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] [2024-12-02 13:17:28,666 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;" [2024-12-02 13:17:28,666 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);" [2024-12-02 13:17:28,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:28,666 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-12-02 13:17:28,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:28,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859186967] [2024-12-02 13:17:28,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:28,673 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:28,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:28,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:28,679 INFO L85 PathProgramCache]: Analyzing trace with hash -821578554, now seen corresponding path program 1 times [2024-12-02 13:17:28,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:28,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018592232] [2024-12-02 13:17:28,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:28,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018592232] [2024-12-02 13:17:28,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018592232] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:28,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885605810] [2024-12-02 13:17:28,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:28,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:28,727 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:28,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:17:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:28,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:28,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:28,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885605810] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:28,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:28,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:28,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899355700] [2024-12-02 13:17:28,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:28,835 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:28,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:28,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:28,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:28,835 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) [2024-12-02 13:17:28,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:28,857 INFO L93 Difference]: Finished difference Result 366 states and 582 transitions. [2024-12-02 13:17:28,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 366 states and 582 transitions. [2024-12-02 13:17:28,860 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 364 [2024-12-02 13:17:28,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 366 states to 366 states and 582 transitions. [2024-12-02 13:17:28,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 366 [2024-12-02 13:17:28,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 366 [2024-12-02 13:17:28,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 366 states and 582 transitions. [2024-12-02 13:17:28,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:28,866 INFO L218 hiAutomatonCegarLoop]: Abstraction has 366 states and 582 transitions. [2024-12-02 13:17:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states and 582 transitions. [2024-12-02 13:17:28,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2024-12-02 13:17:28,880 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) [2024-12-02 13:17:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 582 transitions. [2024-12-02 13:17:28,883 INFO L240 hiAutomatonCegarLoop]: Abstraction has 366 states and 582 transitions. [2024-12-02 13:17:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:28,885 INFO L425 stractBuchiCegarLoop]: Abstraction has 366 states and 582 transitions. [2024-12-02 13:17:28,885 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 13:17:28,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 582 transitions. [2024-12-02 13:17:28,888 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 364 [2024-12-02 13:17:28,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:28,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:28,889 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:28,889 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] [2024-12-02 13:17:28,889 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;" [2024-12-02 13:17:28,889 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);" [2024-12-02 13:17:28,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:28,889 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-12-02 13:17:28,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:28,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708295338] [2024-12-02 13:17:28,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:28,894 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:28,899 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:28,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:28,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1101649480, now seen corresponding path program 1 times [2024-12-02 13:17:28,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:28,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825378887] [2024-12-02 13:17:28,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:28,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825378887] [2024-12-02 13:17:28,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825378887] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:28,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429955721] [2024-12-02 13:17:28,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:28,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:28,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:28,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:28,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:17:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:28,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:28,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:29,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:29,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429955721] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:29,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:29,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:29,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529110178] [2024-12-02 13:17:29,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:29,033 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:29,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:29,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:29,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:29,034 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) [2024-12-02 13:17:29,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:29,051 INFO L93 Difference]: Finished difference Result 722 states and 1138 transitions. [2024-12-02 13:17:29,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 722 states and 1138 transitions. [2024-12-02 13:17:29,058 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 720 [2024-12-02 13:17:29,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 722 states to 722 states and 1138 transitions. [2024-12-02 13:17:29,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 722 [2024-12-02 13:17:29,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 722 [2024-12-02 13:17:29,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 722 states and 1138 transitions. [2024-12-02 13:17:29,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:29,066 INFO L218 hiAutomatonCegarLoop]: Abstraction has 722 states and 1138 transitions. [2024-12-02 13:17:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states and 1138 transitions. [2024-12-02 13:17:29,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2024-12-02 13:17:29,085 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) [2024-12-02 13:17:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1138 transitions. [2024-12-02 13:17:29,089 INFO L240 hiAutomatonCegarLoop]: Abstraction has 722 states and 1138 transitions. [2024-12-02 13:17:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:29,090 INFO L425 stractBuchiCegarLoop]: Abstraction has 722 states and 1138 transitions. [2024-12-02 13:17:29,090 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 13:17:29,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 722 states and 1138 transitions. [2024-12-02 13:17:29,095 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 720 [2024-12-02 13:17:29,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:29,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:29,096 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:29,096 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] [2024-12-02 13:17:29,096 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;" [2024-12-02 13:17:29,096 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);" [2024-12-02 13:17:29,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,096 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-12-02 13:17:29,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295220470] [2024-12-02 13:17:29,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,101 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:29,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1163689094, now seen corresponding path program 1 times [2024-12-02 13:17:29,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478763643] [2024-12-02 13:17:29,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:29,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:29,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478763643] [2024-12-02 13:17:29,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478763643] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:29,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406353694] [2024-12-02 13:17:29,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:29,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:29,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:29,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:17:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:29,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:29,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:29,230 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:29,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406353694] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:29,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:29,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:29,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126265285] [2024-12-02 13:17:29,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:29,259 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:29,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:29,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:29,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:29,260 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) [2024-12-02 13:17:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:29,278 INFO L93 Difference]: Finished difference Result 1426 states and 2226 transitions. [2024-12-02 13:17:29,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1426 states and 2226 transitions. [2024-12-02 13:17:29,286 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1424 [2024-12-02 13:17:29,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1426 states to 1426 states and 2226 transitions. [2024-12-02 13:17:29,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1426 [2024-12-02 13:17:29,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1426 [2024-12-02 13:17:29,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1426 states and 2226 transitions. [2024-12-02 13:17:29,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:29,294 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1426 states and 2226 transitions. [2024-12-02 13:17:29,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states and 2226 transitions. [2024-12-02 13:17:29,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2024-12-02 13:17:29,311 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) [2024-12-02 13:17:29,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2226 transitions. [2024-12-02 13:17:29,315 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1426 states and 2226 transitions. [2024-12-02 13:17:29,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:29,316 INFO L425 stractBuchiCegarLoop]: Abstraction has 1426 states and 2226 transitions. [2024-12-02 13:17:29,316 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 13:17:29,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1426 states and 2226 transitions. [2024-12-02 13:17:29,322 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1424 [2024-12-02 13:17:29,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:29,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:29,323 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:29,323 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] [2024-12-02 13:17:29,323 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;" [2024-12-02 13:17:29,323 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);" [2024-12-02 13:17:29,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,324 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2024-12-02 13:17:29,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318378906] [2024-12-02 13:17:29,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,328 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:29,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1304237704, now seen corresponding path program 1 times [2024-12-02 13:17:29,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368168667] [2024-12-02 13:17:29,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:29,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:29,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368168667] [2024-12-02 13:17:29,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368168667] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:29,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259911178] [2024-12-02 13:17:29,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:29,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:29,363 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:29,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:17:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:29,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:29,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:29,437 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259911178] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:29,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:29,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143194516] [2024-12-02 13:17:29,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:29,463 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:29,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:29,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:29,463 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) [2024-12-02 13:17:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:29,485 INFO L93 Difference]: Finished difference Result 2818 states and 4354 transitions. [2024-12-02 13:17:29,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2818 states and 4354 transitions. [2024-12-02 13:17:29,504 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2816 [2024-12-02 13:17:29,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2818 states to 2818 states and 4354 transitions. [2024-12-02 13:17:29,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2818 [2024-12-02 13:17:29,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2818 [2024-12-02 13:17:29,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2818 states and 4354 transitions. [2024-12-02 13:17:29,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:29,518 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2818 states and 4354 transitions. [2024-12-02 13:17:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states and 4354 transitions. [2024-12-02 13:17:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2818. [2024-12-02 13:17:29,550 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) [2024-12-02 13:17:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 4354 transitions. [2024-12-02 13:17:29,558 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2818 states and 4354 transitions. [2024-12-02 13:17:29,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:29,559 INFO L425 stractBuchiCegarLoop]: Abstraction has 2818 states and 4354 transitions. [2024-12-02 13:17:29,559 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-12-02 13:17:29,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2818 states and 4354 transitions. [2024-12-02 13:17:29,583 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2816 [2024-12-02 13:17:29,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:29,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:29,584 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:29,584 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] [2024-12-02 13:17:29,584 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;" [2024-12-02 13:17:29,584 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);" [2024-12-02 13:17:29,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2024-12-02 13:17:29,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533930455] [2024-12-02 13:17:29,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,589 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:29,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1170224198, now seen corresponding path program 1 times [2024-12-02 13:17:29,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105377361] [2024-12-02 13:17:29,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:29,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105377361] [2024-12-02 13:17:29,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105377361] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732229554] [2024-12-02 13:17:29,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:29,626 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:29,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:17:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:29,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:29,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:29,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:29,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732229554] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:29,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:29,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:29,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596285844] [2024-12-02 13:17:29,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:29,723 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:29,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:29,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:29,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:29,724 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) [2024-12-02 13:17:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:29,750 INFO L93 Difference]: Finished difference Result 5570 states and 8514 transitions. [2024-12-02 13:17:29,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5570 states and 8514 transitions. [2024-12-02 13:17:29,776 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5568 [2024-12-02 13:17:29,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5570 states to 5570 states and 8514 transitions. [2024-12-02 13:17:29,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5570 [2024-12-02 13:17:29,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5570 [2024-12-02 13:17:29,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5570 states and 8514 transitions. [2024-12-02 13:17:29,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:29,806 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5570 states and 8514 transitions. [2024-12-02 13:17:29,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5570 states and 8514 transitions. [2024-12-02 13:17:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5570 to 5570. [2024-12-02 13:17:29,871 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) [2024-12-02 13:17:29,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5570 states to 5570 states and 8514 transitions. [2024-12-02 13:17:29,919 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5570 states and 8514 transitions. [2024-12-02 13:17:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:29,920 INFO L425 stractBuchiCegarLoop]: Abstraction has 5570 states and 8514 transitions. [2024-12-02 13:17:29,920 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-12-02 13:17:29,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5570 states and 8514 transitions. [2024-12-02 13:17:29,945 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 5568 [2024-12-02 13:17:29,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:29,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:29,946 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:29,946 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] [2024-12-02 13:17:29,946 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;" [2024-12-02 13:17:29,946 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);" [2024-12-02 13:17:29,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,947 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 8 times [2024-12-02 13:17:29,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162716139] [2024-12-02 13:17:29,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,952 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:29,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:29,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:29,956 INFO L85 PathProgramCache]: Analyzing trace with hash -635214136, now seen corresponding path program 1 times [2024-12-02 13:17:29,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:29,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568786316] [2024-12-02 13:17:29,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:29,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:29,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568786316] [2024-12-02 13:17:29,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568786316] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:29,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200818811] [2024-12-02 13:17:29,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:29,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:29,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:29,989 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:29,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:17:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:30,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:30,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:30,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:30,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200818811] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:30,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:30,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:30,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161340647] [2024-12-02 13:17:30,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:30,093 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:30,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:30,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:30,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:30,094 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) [2024-12-02 13:17:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:30,145 INFO L93 Difference]: Finished difference Result 11010 states and 16642 transitions. [2024-12-02 13:17:30,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11010 states and 16642 transitions. [2024-12-02 13:17:30,217 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 11008 [2024-12-02 13:17:30,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11010 states to 11010 states and 16642 transitions. [2024-12-02 13:17:30,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11010 [2024-12-02 13:17:30,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11010 [2024-12-02 13:17:30,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11010 states and 16642 transitions. [2024-12-02 13:17:30,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:30,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11010 states and 16642 transitions. [2024-12-02 13:17:30,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states and 16642 transitions. [2024-12-02 13:17:30,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 11010. [2024-12-02 13:17:30,550 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) [2024-12-02 13:17:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11010 states to 11010 states and 16642 transitions. [2024-12-02 13:17:30,602 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11010 states and 16642 transitions. [2024-12-02 13:17:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:30,603 INFO L425 stractBuchiCegarLoop]: Abstraction has 11010 states and 16642 transitions. [2024-12-02 13:17:30,603 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-12-02 13:17:30,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11010 states and 16642 transitions. [2024-12-02 13:17:30,652 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 11008 [2024-12-02 13:17:30,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:30,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:30,652 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:30,653 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] [2024-12-02 13:17:30,653 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;" [2024-12-02 13:17:30,653 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);" [2024-12-02 13:17:30,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:30,653 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 9 times [2024-12-02 13:17:30,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:30,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085255223] [2024-12-02 13:17:30,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:30,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:30,658 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:30,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:30,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash -416359418, now seen corresponding path program 1 times [2024-12-02 13:17:30,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:30,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960315909] [2024-12-02 13:17:30,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:30,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:30,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:30,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960315909] [2024-12-02 13:17:30,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960315909] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:30,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89296084] [2024-12-02 13:17:30,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:30,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:30,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:30,697 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:30,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 13:17:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:30,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:30,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:30,792 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:30,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89296084] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:30,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:30,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:30,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598443564] [2024-12-02 13:17:30,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:30,821 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:30,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:30,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:30,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:30,821 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) [2024-12-02 13:17:30,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:30,952 INFO L93 Difference]: Finished difference Result 21762 states and 32514 transitions. [2024-12-02 13:17:30,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21762 states and 32514 transitions. [2024-12-02 13:17:31,040 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 21760 [2024-12-02 13:17:31,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21762 states to 21762 states and 32514 transitions. [2024-12-02 13:17:31,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21762 [2024-12-02 13:17:31,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21762 [2024-12-02 13:17:31,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21762 states and 32514 transitions. [2024-12-02 13:17:31,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:31,166 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21762 states and 32514 transitions. [2024-12-02 13:17:31,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21762 states and 32514 transitions. [2024-12-02 13:17:31,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21762 to 21762. [2024-12-02 13:17:31,513 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) [2024-12-02 13:17:31,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21762 states to 21762 states and 32514 transitions. [2024-12-02 13:17:31,588 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21762 states and 32514 transitions. [2024-12-02 13:17:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:31,589 INFO L425 stractBuchiCegarLoop]: Abstraction has 21762 states and 32514 transitions. [2024-12-02 13:17:31,589 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-12-02 13:17:31,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21762 states and 32514 transitions. [2024-12-02 13:17:31,649 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 21760 [2024-12-02 13:17:31,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:31,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:31,650 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:31,650 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] [2024-12-02 13:17:31,650 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;" [2024-12-02 13:17:31,650 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);" [2024-12-02 13:17:31,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:31,650 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 10 times [2024-12-02 13:17:31,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:31,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315132220] [2024-12-02 13:17:31,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:31,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:31,654 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:31,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:31,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:31,658 INFO L85 PathProgramCache]: Analyzing trace with hash 6342408, now seen corresponding path program 1 times [2024-12-02 13:17:31,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:31,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658124979] [2024-12-02 13:17:31,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:31,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:31,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:31,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658124979] [2024-12-02 13:17:31,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658124979] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:31,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857757147] [2024-12-02 13:17:31,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:31,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:31,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:31,682 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:31,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 13:17:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:31,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:31,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:31,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:31,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857757147] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:31,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:31,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731087015] [2024-12-02 13:17:31,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:31,770 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:31,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:31,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:31,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:31,771 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) [2024-12-02 13:17:31,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:31,932 INFO L93 Difference]: Finished difference Result 43010 states and 63490 transitions. [2024-12-02 13:17:31,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43010 states and 63490 transitions. [2024-12-02 13:17:32,078 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 43008 [2024-12-02 13:17:32,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43010 states to 43010 states and 63490 transitions. [2024-12-02 13:17:32,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43010 [2024-12-02 13:17:32,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43010 [2024-12-02 13:17:32,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43010 states and 63490 transitions. [2024-12-02 13:17:32,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:32,315 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43010 states and 63490 transitions. [2024-12-02 13:17:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43010 states and 63490 transitions. [2024-12-02 13:17:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43010 to 43010. [2024-12-02 13:17:32,925 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) [2024-12-02 13:17:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43010 states to 43010 states and 63490 transitions. [2024-12-02 13:17:32,977 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43010 states and 63490 transitions. [2024-12-02 13:17:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:32,978 INFO L425 stractBuchiCegarLoop]: Abstraction has 43010 states and 63490 transitions. [2024-12-02 13:17:32,978 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-12-02 13:17:32,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43010 states and 63490 transitions. [2024-12-02 13:17:33,061 INFO L131 ngComponentsAnalysis]: Automaton has 1024 accepting balls. 43008 [2024-12-02 13:17:33,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:33,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:33,062 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:33,062 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] [2024-12-02 13:17:33,062 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;" [2024-12-02 13:17:33,062 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);" [2024-12-02 13:17:33,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:33,063 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 11 times [2024-12-02 13:17:33,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:33,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443976468] [2024-12-02 13:17:33,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:33,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:33,068 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:33,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:33,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:33,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1682601334, now seen corresponding path program 1 times [2024-12-02 13:17:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:33,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324781653] [2024-12-02 13:17:33,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:33,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:33,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:33,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324781653] [2024-12-02 13:17:33,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324781653] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:33,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203829995] [2024-12-02 13:17:33,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:33,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:33,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:33,105 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 13:17:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:33,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:33,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:33,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:33,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203829995] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:33,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:33,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:33,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955736945] [2024-12-02 13:17:33,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:33,199 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:33,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:33,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:33,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:33,200 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) [2024-12-02 13:17:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:33,477 INFO L93 Difference]: Finished difference Result 84994 states and 123906 transitions. [2024-12-02 13:17:33,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84994 states and 123906 transitions. [2024-12-02 13:17:33,798 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 84992 [2024-12-02 13:17:33,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84994 states to 84994 states and 123906 transitions. [2024-12-02 13:17:33,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84994 [2024-12-02 13:17:34,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84994 [2024-12-02 13:17:34,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 84994 states and 123906 transitions. [2024-12-02 13:17:34,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:34,092 INFO L218 hiAutomatonCegarLoop]: Abstraction has 84994 states and 123906 transitions. [2024-12-02 13:17:34,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84994 states and 123906 transitions. [2024-12-02 13:17:35,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84994 to 84994. [2024-12-02 13:17:35,148 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) [2024-12-02 13:17:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84994 states to 84994 states and 123906 transitions. [2024-12-02 13:17:35,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 84994 states and 123906 transitions. [2024-12-02 13:17:35,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:35,368 INFO L425 stractBuchiCegarLoop]: Abstraction has 84994 states and 123906 transitions. [2024-12-02 13:17:35,368 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-12-02 13:17:35,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84994 states and 123906 transitions. [2024-12-02 13:17:35,542 INFO L131 ngComponentsAnalysis]: Automaton has 2048 accepting balls. 84992 [2024-12-02 13:17:35,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:35,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:35,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:35,543 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] [2024-12-02 13:17:35,544 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;" [2024-12-02 13:17:35,544 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);" [2024-12-02 13:17:35,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 12 times [2024-12-02 13:17:35,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:35,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880128172] [2024-12-02 13:17:35,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:35,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:35,548 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:35,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:35,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:35,552 INFO L85 PathProgramCache]: Analyzing trace with hash 618221256, now seen corresponding path program 1 times [2024-12-02 13:17:35,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:35,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273078011] [2024-12-02 13:17:35,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:35,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:35,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:35,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273078011] [2024-12-02 13:17:35,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273078011] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:35,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600023268] [2024-12-02 13:17:35,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:35,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:35,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:35,573 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:35,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 13:17:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:35,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:35,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:35,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:35,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600023268] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:35,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:35,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 13:17:35,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894999104] [2024-12-02 13:17:35,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:35,678 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:35,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:35,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:35,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:35,678 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) [2024-12-02 13:17:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:36,074 INFO L93 Difference]: Finished difference Result 167938 states and 241666 transitions. [2024-12-02 13:17:36,074 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 167938 states and 241666 transitions. [2024-12-02 13:17:36,681 INFO L131 ngComponentsAnalysis]: Automaton has 4096 accepting balls. 167936 [2024-12-02 13:17:37,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 167938 states to 167938 states and 241666 transitions. [2024-12-02 13:17:37,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167938 [2024-12-02 13:17:37,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 167938 [2024-12-02 13:17:37,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 167938 states and 241666 transitions. [2024-12-02 13:17:37,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:37,167 INFO L218 hiAutomatonCegarLoop]: Abstraction has 167938 states and 241666 transitions. [2024-12-02 13:17:37,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167938 states and 241666 transitions. [2024-12-02 13:17:38,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167938 to 167938. [2024-12-02 13:17:38,744 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) [2024-12-02 13:17:38,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167938 states to 167938 states and 241666 transitions. [2024-12-02 13:17:38,987 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167938 states and 241666 transitions. [2024-12-02 13:17:38,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:38,988 INFO L425 stractBuchiCegarLoop]: Abstraction has 167938 states and 241666 transitions. [2024-12-02 13:17:38,988 INFO L332 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2024-12-02 13:17:38,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167938 states and 241666 transitions. [2024-12-02 13:17:39,424 INFO L131 ngComponentsAnalysis]: Automaton has 4096 accepting balls. 167936 [2024-12-02 13:17:39,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:39,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:39,425 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:39,426 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] [2024-12-02 13:17:39,426 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;" [2024-12-02 13:17:39,426 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);" [2024-12-02 13:17:39,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:39,426 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 13 times [2024-12-02 13:17:39,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:39,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317617210] [2024-12-02 13:17:39,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:39,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:39,431 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:39,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:39,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:39,435 INFO L85 PathProgramCache]: Analyzing trace with hash -970126646, now seen corresponding path program 1 times [2024-12-02 13:17:39,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:39,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761971288] [2024-12-02 13:17:39,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:39,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:39,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 13:17:39,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761971288] [2024-12-02 13:17:39,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761971288] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:17:39,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244946295] [2024-12-02 13:17:39,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:39,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:17:39,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:17:39,461 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:17:39,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 13:17:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:17:39,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:17:39,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:17:39,532 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:17:39,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244946295] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:17:39,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:17:39,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-12-02 13:17:39,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335949880] [2024-12-02 13:17:39,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:17:39,555 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 13:17:39,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 13:17:39,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:17:39,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:17:39,556 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) [2024-12-02 13:17:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:17:40,583 INFO L93 Difference]: Finished difference Result 331778 states and 471042 transitions. [2024-12-02 13:17:40,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 331778 states and 471042 transitions. [2024-12-02 13:17:42,158 INFO L131 ngComponentsAnalysis]: Automaton has 8192 accepting balls. 331776 [2024-12-02 13:17:42,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 331778 states to 331778 states and 471042 transitions. [2024-12-02 13:17:42,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 331778 [2024-12-02 13:17:43,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 331778 [2024-12-02 13:17:43,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 331778 states and 471042 transitions. [2024-12-02 13:17:43,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 13:17:43,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 331778 states and 471042 transitions. [2024-12-02 13:17:43,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331778 states and 471042 transitions. [2024-12-02 13:17:45,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331778 to 331778. [2024-12-02 13:17:46,129 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) [2024-12-02 13:17:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331778 states to 331778 states and 471042 transitions. [2024-12-02 13:17:46,629 INFO L240 hiAutomatonCegarLoop]: Abstraction has 331778 states and 471042 transitions. [2024-12-02 13:17:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:17:46,630 INFO L425 stractBuchiCegarLoop]: Abstraction has 331778 states and 471042 transitions. [2024-12-02 13:17:46,630 INFO L332 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2024-12-02 13:17:46,630 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331778 states and 471042 transitions. [2024-12-02 13:17:47,490 INFO L131 ngComponentsAnalysis]: Automaton has 8192 accepting balls. 331776 [2024-12-02 13:17:47,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 13:17:47,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 13:17:47,492 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 13:17:47,492 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] [2024-12-02 13:17:47,493 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;" [2024-12-02 13:17:47,493 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);" [2024-12-02 13:17:47,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:47,493 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 14 times [2024-12-02 13:17:47,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:47,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090928680] [2024-12-02 13:17:47,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:47,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:47,498 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:47,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:47,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:47,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1991195000, now seen corresponding path program 1 times [2024-12-02 13:17:47,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:47,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299975953] [2024-12-02 13:17:47,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:47,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:47,507 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:47,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:47,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:17:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1845576266, now seen corresponding path program 1 times [2024-12-02 13:17:47,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 13:17:47,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086823455] [2024-12-02 13:17:47,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:17:47,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:17:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:47,524 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:47,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 13:17:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:48,283 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 13:17:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 13:17:48,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:17:48 BoogieIcfgContainer [2024-12-02 13:17:48,322 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 13:17:48,322 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:17:48,322 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:17:48,323 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:17:48,324 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:17:27" (3/4) ... [2024-12-02 13:17:48,325 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 13:17:48,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:17:48,364 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:17:48,364 INFO L158 Benchmark]: Toolchain (without parser) took 21256.20ms. Allocated memory was 142.6MB in the beginning and 8.3GB in the end (delta: 8.2GB). Free memory was 116.4MB in the beginning and 6.4GB in the end (delta: -6.3GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-12-02 13:17:48,365 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 82.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:17:48,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.09ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 104.3MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:17:48,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.38ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:17:48,366 INFO L158 Benchmark]: Boogie Preprocessor took 40.73ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 101.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:17:48,366 INFO L158 Benchmark]: RCFGBuilder took 379.87ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 84.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:17:48,367 INFO L158 Benchmark]: BuchiAutomizer took 20499.31ms. Allocated memory was 142.6MB in the beginning and 8.3GB in the end (delta: 8.2GB). Free memory was 84.0MB in the beginning and 6.4GB in the end (delta: -6.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-12-02 13:17:48,367 INFO L158 Benchmark]: Witness Printer took 41.23ms. Allocated memory is still 8.3GB. Free memory was 6.4GB in the beginning and 6.4GB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:17:48,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 82.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.09ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 104.3MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.38ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.73ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 101.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.87ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 84.2MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 20499.31ms. Allocated memory was 142.6MB in the beginning and 8.3GB in the end (delta: 8.2GB). Free memory was 84.0MB in the beginning and 6.4GB in the end (delta: -6.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 41.23ms. Allocated memory is still 8.3GB. Free memory was 6.4GB in the beginning and 6.4GB 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 20.4s and 14 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 15.5s. Highest rank in rank-based complementation 0. Minimization of det autom 13. Minimization of nondet autom 0. Automata minimization 8.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 4.6s Buchi closure took 0.2s. 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, 0.1s 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! [2024-12-02 13:17:48,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 13:17:48,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 13:17:48,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 13:17:48,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 13:17:49,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 13:17:49,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 13:17:49,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 13:17:49,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:17:49,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:17:50,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:17:50,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:17:50,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:17:50,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:17:50,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec77aa8-abb3-4c85-9ef2-5238fe74c805/bin/uautomizer-verify-84ZbGMXZE1/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)