./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_11.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_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:16:06,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:16:06,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 05:16:06,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:16:06,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:16:06,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:16:06,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:16:06,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:16:06,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:16:06,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:16:06,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:16:06,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:16:06,216 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:16:06,216 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 05:16:06,217 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 05:16:06,217 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 05:16:06,217 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 05:16:06,217 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 05:16:06,217 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 05:16:06,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:16:06,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:16:06,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:16:06,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:16:06,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:16:06,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 05:16:06,219 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 05:16:06,219 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_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd9c6b82321d3b192dc5809ecc7ca6021855509a18ab1d23ca9eeb538976a0c0 [2024-11-28 05:16:06,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:16:06,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:16:06,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:16:06,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:16:06,549 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:16:06,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/locks/test_locks_11.c [2024-11-28 05:16:09,566 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/data/9d625c2f3/1113c3845e12494f922806757e74da79/FLAG53aad84ca [2024-11-28 05:16:09,926 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:16:09,928 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/sv-benchmarks/c/locks/test_locks_11.c [2024-11-28 05:16:09,942 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/data/9d625c2f3/1113c3845e12494f922806757e74da79/FLAG53aad84ca [2024-11-28 05:16:09,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/data/9d625c2f3/1113c3845e12494f922806757e74da79 [2024-11-28 05:16:09,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:16:09,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:16:09,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:16:09,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:16:10,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:16:10,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:16:09" (1/1) ... [2024-11-28 05:16:10,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@329e335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10, skipping insertion in model container [2024-11-28 05:16:10,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:16:09" (1/1) ... [2024-11-28 05:16:10,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:16:10,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:16:10,286 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:16:10,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:16:10,348 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:16:10,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10 WrapperNode [2024-11-28 05:16:10,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:16:10,350 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:16:10,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:16:10,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:16:10,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,405 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 148 [2024-11-28 05:16:10,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:16:10,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:16:10,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:16:10,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:16:10,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,451 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:16:10,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,458 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:16:10,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:16:10,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:16:10,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:16:10,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (1/1) ... [2024-11-28 05:16:10,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:16:10,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:10,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:16:10,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 05:16:10,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:16:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:16:10,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:16:10,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:16:10,662 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:16:10,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:16:10,943 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-28 05:16:10,943 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:16:10,957 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:16:10,957 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:16:10,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:16:10 BoogieIcfgContainer [2024-11-28 05:16:10,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:16:10,959 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 05:16:10,959 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 05:16:10,967 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 05:16:10,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:16:10,968 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 05:16:09" (1/3) ... [2024-11-28 05:16:10,970 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7221a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:16:10, skipping insertion in model container [2024-11-28 05:16:10,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:16:10,970 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:16:10" (2/3) ... [2024-11-28 05:16:10,970 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7221a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:16:10, skipping insertion in model container [2024-11-28 05:16:10,971 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:16:10,971 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:16:10" (3/3) ... [2024-11-28 05:16:10,972 INFO L363 chiAutomizerObserver]: Analyzing ICFG test_locks_11.c [2024-11-28 05:16:11,046 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 05:16:11,046 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 05:16:11,046 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 05:16:11,046 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 05:16:11,046 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 05:16:11,046 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 05:16:11,047 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 05:16:11,047 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 05:16:11,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:11,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2024-11-28 05:16:11,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:11,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:11,086 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:11,087 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] [2024-11-28 05:16:11,087 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 05:16:11,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:11,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 35 [2024-11-28 05:16:11,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:11,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:11,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:11,093 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] [2024-11-28 05:16:11,102 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:11,103 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:11,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 05:16:11,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:11,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199718790] [2024-11-28 05:16:11,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:11,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:11,232 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:11,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:11,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1430849892, now seen corresponding path program 1 times [2024-11-28 05:16:11,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:11,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698132348] [2024-11-28 05:16:11,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:11,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:11,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:11,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698132348] [2024-11-28 05:16:11,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698132348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:11,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788883529] [2024-11-28 05:16:11,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:11,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:11,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:16:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:11,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:11,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:11,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:11,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788883529] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:11,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:11,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:11,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537752588] [2024-11-28 05:16:11,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:11,763 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:11,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:11,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:11,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:11,808 INFO L87 Difference]: Start difference. First operand has 43 states, 42 states have (on average 1.8571428571428572) internal successors, (78), 42 states have internal predecessors, (78), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:11,862 INFO L93 Difference]: Finished difference Result 79 states and 141 transitions. [2024-11-28 05:16:11,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 141 transitions. [2024-11-28 05:16:11,869 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2024-11-28 05:16:11,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 71 states and 113 transitions. [2024-11-28 05:16:11,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2024-11-28 05:16:11,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2024-11-28 05:16:11,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 113 transitions. [2024-11-28 05:16:11,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:11,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 71 states and 113 transitions. [2024-11-28 05:16:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 113 transitions. [2024-11-28 05:16:11,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-28 05:16:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.591549295774648) internal successors, (113), 70 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 113 transitions. [2024-11-28 05:16:11,949 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 113 transitions. [2024-11-28 05:16:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:11,953 INFO L425 stractBuchiCegarLoop]: Abstraction has 71 states and 113 transitions. [2024-11-28 05:16:11,954 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 05:16:11,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 113 transitions. [2024-11-28 05:16:11,955 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2024-11-28 05:16:11,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:11,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:11,956 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:11,956 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] [2024-11-28 05:16:11,956 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:11,956 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:11,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-28 05:16:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730199556] [2024-11-28 05:16:11,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:11,965 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:11,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:11,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:11,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1649704610, now seen corresponding path program 1 times [2024-11-28 05:16:11,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:11,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503001665] [2024-11-28 05:16:11,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:11,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:12,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:12,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503001665] [2024-11-28 05:16:12,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503001665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126368879] [2024-11-28 05:16:12,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:12,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:12,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:12,078 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:12,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:16:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:12,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:12,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:12,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:12,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126368879] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:12,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:12,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:12,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058651217] [2024-11-28 05:16:12,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:12,281 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:12,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:12,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:12,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:12,283 INFO L87 Difference]: Start difference. First operand 71 states and 113 transitions. cyclomatic complexity: 44 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:12,314 INFO L93 Difference]: Finished difference Result 138 states and 218 transitions. [2024-11-28 05:16:12,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 218 transitions. [2024-11-28 05:16:12,317 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 136 [2024-11-28 05:16:12,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 138 states and 218 transitions. [2024-11-28 05:16:12,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 138 [2024-11-28 05:16:12,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2024-11-28 05:16:12,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 218 transitions. [2024-11-28 05:16:12,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:12,321 INFO L218 hiAutomatonCegarLoop]: Abstraction has 138 states and 218 transitions. [2024-11-28 05:16:12,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 218 transitions. [2024-11-28 05:16:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2024-11-28 05:16:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 137 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 218 transitions. [2024-11-28 05:16:12,341 INFO L240 hiAutomatonCegarLoop]: Abstraction has 138 states and 218 transitions. [2024-11-28 05:16:12,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:12,343 INFO L425 stractBuchiCegarLoop]: Abstraction has 138 states and 218 transitions. [2024-11-28 05:16:12,345 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 05:16:12,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 218 transitions. [2024-11-28 05:16:12,347 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 136 [2024-11-28 05:16:12,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:12,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:12,351 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:12,351 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] [2024-11-28 05:16:12,351 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:12,351 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:12,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-28 05:16:12,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:12,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683150243] [2024-11-28 05:16:12,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:12,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:12,364 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:12,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:12,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:12,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2072406436, now seen corresponding path program 1 times [2024-11-28 05:16:12,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:12,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694908666] [2024-11-28 05:16:12,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:12,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:12,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:12,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694908666] [2024-11-28 05:16:12,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694908666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:12,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680850520] [2024-11-28 05:16:12,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:12,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:12,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:12,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:12,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:16:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:12,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:12,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:12,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:12,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680850520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:12,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:12,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:12,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807246623] [2024-11-28 05:16:12,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:12,617 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:12,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:12,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:12,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:12,618 INFO L87 Difference]: Start difference. First operand 138 states and 218 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:12,662 INFO L93 Difference]: Finished difference Result 270 states and 422 transitions. [2024-11-28 05:16:12,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 422 transitions. [2024-11-28 05:16:12,669 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 268 [2024-11-28 05:16:12,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 270 states and 422 transitions. [2024-11-28 05:16:12,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 270 [2024-11-28 05:16:12,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 270 [2024-11-28 05:16:12,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 270 states and 422 transitions. [2024-11-28 05:16:12,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:12,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 270 states and 422 transitions. [2024-11-28 05:16:12,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states and 422 transitions. [2024-11-28 05:16:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-28 05:16:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 270 states have (on average 1.5629629629629629) internal successors, (422), 269 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 422 transitions. [2024-11-28 05:16:12,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 270 states and 422 transitions. [2024-11-28 05:16:12,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:12,720 INFO L425 stractBuchiCegarLoop]: Abstraction has 270 states and 422 transitions. [2024-11-28 05:16:12,721 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 05:16:12,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 422 transitions. [2024-11-28 05:16:12,725 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 268 [2024-11-28 05:16:12,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:12,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:12,727 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:12,728 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] [2024-11-28 05:16:12,728 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:12,729 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:12,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-28 05:16:12,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:12,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702103098] [2024-11-28 05:16:12,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:12,742 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:12,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:12,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash 383462694, now seen corresponding path program 1 times [2024-11-28 05:16:12,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:12,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547592518] [2024-11-28 05:16:12,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:12,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:12,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:12,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547592518] [2024-11-28 05:16:12,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547592518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:12,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782921534] [2024-11-28 05:16:12,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:12,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:12,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:12,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:12,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:16:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:12,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:12,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:12,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:13,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782921534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:13,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:13,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:13,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114154924] [2024-11-28 05:16:13,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:13,013 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:13,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:13,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:13,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:13,014 INFO L87 Difference]: Start difference. First operand 270 states and 422 transitions. cyclomatic complexity: 160 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:13,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:13,038 INFO L93 Difference]: Finished difference Result 530 states and 818 transitions. [2024-11-28 05:16:13,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 530 states and 818 transitions. [2024-11-28 05:16:13,044 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 528 [2024-11-28 05:16:13,049 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 530 states to 530 states and 818 transitions. [2024-11-28 05:16:13,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 530 [2024-11-28 05:16:13,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 530 [2024-11-28 05:16:13,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 530 states and 818 transitions. [2024-11-28 05:16:13,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:13,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 530 states and 818 transitions. [2024-11-28 05:16:13,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states and 818 transitions. [2024-11-28 05:16:13,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-28 05:16:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 530 states have (on average 1.5433962264150944) internal successors, (818), 529 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:13,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 818 transitions. [2024-11-28 05:16:13,077 INFO L240 hiAutomatonCegarLoop]: Abstraction has 530 states and 818 transitions. [2024-11-28 05:16:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:13,078 INFO L425 stractBuchiCegarLoop]: Abstraction has 530 states and 818 transitions. [2024-11-28 05:16:13,078 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 05:16:13,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 530 states and 818 transitions. [2024-11-28 05:16:13,082 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 528 [2024-11-28 05:16:13,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:13,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:13,083 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:13,083 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] [2024-11-28 05:16:13,084 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:13,084 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:13,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:13,088 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-11-28 05:16:13,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:13,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157793922] [2024-11-28 05:16:13,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:13,097 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:13,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:13,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:13,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1610682012, now seen corresponding path program 1 times [2024-11-28 05:16:13,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:13,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010834850] [2024-11-28 05:16:13,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:13,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:13,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010834850] [2024-11-28 05:16:13,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010834850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:13,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501891177] [2024-11-28 05:16:13,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:13,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:13,206 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:13,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:16:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:13,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:13,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:13,311 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:13,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501891177] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:13,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:13,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:13,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388549691] [2024-11-28 05:16:13,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:13,345 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:13,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:13,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:13,346 INFO L87 Difference]: Start difference. First operand 530 states and 818 transitions. cyclomatic complexity: 304 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:13,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:13,382 INFO L93 Difference]: Finished difference Result 1042 states and 1586 transitions. [2024-11-28 05:16:13,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1042 states and 1586 transitions. [2024-11-28 05:16:13,397 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1040 [2024-11-28 05:16:13,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1042 states to 1042 states and 1586 transitions. [2024-11-28 05:16:13,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1042 [2024-11-28 05:16:13,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1042 [2024-11-28 05:16:13,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1042 states and 1586 transitions. [2024-11-28 05:16:13,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:13,420 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1042 states and 1586 transitions. [2024-11-28 05:16:13,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states and 1586 transitions. [2024-11-28 05:16:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2024-11-28 05:16:13,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1042 states have (on average 1.5220729366602688) internal successors, (1586), 1041 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1586 transitions. [2024-11-28 05:16:13,499 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1042 states and 1586 transitions. [2024-11-28 05:16:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:13,500 INFO L425 stractBuchiCegarLoop]: Abstraction has 1042 states and 1586 transitions. [2024-11-28 05:16:13,500 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 05:16:13,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1042 states and 1586 transitions. [2024-11-28 05:16:13,510 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 1040 [2024-11-28 05:16:13,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:13,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:13,512 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:13,512 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] [2024-11-28 05:16:13,513 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:13,513 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:13,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:13,513 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2024-11-28 05:16:13,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:13,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712278261] [2024-11-28 05:16:13,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:13,522 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:13,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:13,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:13,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1095937382, now seen corresponding path program 1 times [2024-11-28 05:16:13,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:13,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652605377] [2024-11-28 05:16:13,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:13,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:13,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652605377] [2024-11-28 05:16:13,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652605377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:13,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335928292] [2024-11-28 05:16:13,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:13,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:13,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:13,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:16:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:13,649 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:13,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:13,688 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:13,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335928292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:13,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:13,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:13,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893701180] [2024-11-28 05:16:13,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:13,724 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:13,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:13,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:13,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:13,725 INFO L87 Difference]: Start difference. First operand 1042 states and 1586 transitions. cyclomatic complexity: 576 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:13,765 INFO L93 Difference]: Finished difference Result 2050 states and 3074 transitions. [2024-11-28 05:16:13,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2050 states and 3074 transitions. [2024-11-28 05:16:13,794 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2048 [2024-11-28 05:16:13,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2050 states to 2050 states and 3074 transitions. [2024-11-28 05:16:13,812 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2050 [2024-11-28 05:16:13,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2050 [2024-11-28 05:16:13,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2050 states and 3074 transitions. [2024-11-28 05:16:13,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:13,824 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2050 states and 3074 transitions. [2024-11-28 05:16:13,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states and 3074 transitions. [2024-11-28 05:16:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2024-11-28 05:16:13,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2050 states have (on average 1.4995121951219512) internal successors, (3074), 2049 states have internal predecessors, (3074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3074 transitions. [2024-11-28 05:16:13,919 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2050 states and 3074 transitions. [2024-11-28 05:16:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:13,921 INFO L425 stractBuchiCegarLoop]: Abstraction has 2050 states and 3074 transitions. [2024-11-28 05:16:13,922 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 05:16:13,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2050 states and 3074 transitions. [2024-11-28 05:16:13,935 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 2048 [2024-11-28 05:16:13,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:13,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:13,937 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:13,937 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] [2024-11-28 05:16:13,938 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:13,939 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:13,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:13,940 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2024-11-28 05:16:13,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:13,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983208518] [2024-11-28 05:16:13,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:13,946 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:13,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:13,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash 74869028, now seen corresponding path program 1 times [2024-11-28 05:16:13,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:13,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846843092] [2024-11-28 05:16:13,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:13,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:14,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:14,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846843092] [2024-11-28 05:16:14,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846843092] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:14,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795608582] [2024-11-28 05:16:14,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:14,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:14,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:14,009 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:14,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 05:16:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:14,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:14,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:14,088 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:14,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795608582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:14,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:14,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:14,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928066239] [2024-11-28 05:16:14,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:14,131 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:14,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:14,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:14,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:14,132 INFO L87 Difference]: Start difference. First operand 2050 states and 3074 transitions. cyclomatic complexity: 1088 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:14,177 INFO L93 Difference]: Finished difference Result 4034 states and 5954 transitions. [2024-11-28 05:16:14,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4034 states and 5954 transitions. [2024-11-28 05:16:14,220 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4032 [2024-11-28 05:16:14,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4034 states to 4034 states and 5954 transitions. [2024-11-28 05:16:14,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4034 [2024-11-28 05:16:14,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4034 [2024-11-28 05:16:14,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4034 states and 5954 transitions. [2024-11-28 05:16:14,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:14,263 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4034 states and 5954 transitions. [2024-11-28 05:16:14,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states and 5954 transitions. [2024-11-28 05:16:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 4034. [2024-11-28 05:16:14,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4034 states, 4034 states have (on average 1.4759543877045116) internal successors, (5954), 4033 states have internal predecessors, (5954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4034 states to 4034 states and 5954 transitions. [2024-11-28 05:16:14,383 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4034 states and 5954 transitions. [2024-11-28 05:16:14,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:14,386 INFO L425 stractBuchiCegarLoop]: Abstraction has 4034 states and 5954 transitions. [2024-11-28 05:16:14,387 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-28 05:16:14,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4034 states and 5954 transitions. [2024-11-28 05:16:14,416 INFO L131 ngComponentsAnalysis]: Automaton has 128 accepting balls. 4032 [2024-11-28 05:16:14,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:14,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:14,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:14,417 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] [2024-11-28 05:16:14,418 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:14,418 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:14,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:14,419 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 8 times [2024-11-28 05:16:14,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:14,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779059379] [2024-11-28 05:16:14,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:14,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:14,427 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:14,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:14,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:14,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1204994650, now seen corresponding path program 1 times [2024-11-28 05:16:14,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:14,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905544744] [2024-11-28 05:16:14,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:14,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:14,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:14,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905544744] [2024-11-28 05:16:14,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905544744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:14,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23747960] [2024-11-28 05:16:14,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:14,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:14,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:14,489 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:14,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 05:16:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:14,549 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:14,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:14,578 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:14,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23747960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:14,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:14,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:14,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525233340] [2024-11-28 05:16:14,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:14,608 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:14,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:14,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:14,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:14,609 INFO L87 Difference]: Start difference. First operand 4034 states and 5954 transitions. cyclomatic complexity: 2048 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:14,683 INFO L93 Difference]: Finished difference Result 7938 states and 11522 transitions. [2024-11-28 05:16:14,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7938 states and 11522 transitions. [2024-11-28 05:16:14,757 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 7936 [2024-11-28 05:16:14,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7938 states to 7938 states and 11522 transitions. [2024-11-28 05:16:14,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7938 [2024-11-28 05:16:14,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7938 [2024-11-28 05:16:14,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7938 states and 11522 transitions. [2024-11-28 05:16:14,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:14,835 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7938 states and 11522 transitions. [2024-11-28 05:16:14,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7938 states and 11522 transitions. [2024-11-28 05:16:15,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7938 to 7938. [2024-11-28 05:16:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7938 states, 7938 states have (on average 1.4514991181657848) internal successors, (11522), 7937 states have internal predecessors, (11522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:15,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7938 states to 7938 states and 11522 transitions. [2024-11-28 05:16:15,088 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7938 states and 11522 transitions. [2024-11-28 05:16:15,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:15,089 INFO L425 stractBuchiCegarLoop]: Abstraction has 7938 states and 11522 transitions. [2024-11-28 05:16:15,089 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-28 05:16:15,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7938 states and 11522 transitions. [2024-11-28 05:16:15,127 INFO L131 ngComponentsAnalysis]: Automaton has 256 accepting balls. 7936 [2024-11-28 05:16:15,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:15,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:15,128 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:15,129 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] [2024-11-28 05:16:15,129 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:15,130 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:15,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:15,130 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 9 times [2024-11-28 05:16:15,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:15,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163262724] [2024-11-28 05:16:15,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:15,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:15,138 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:15,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:15,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:15,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2078855396, now seen corresponding path program 1 times [2024-11-28 05:16:15,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:15,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356308958] [2024-11-28 05:16:15,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:15,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:15,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:16:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356308958] [2024-11-28 05:16:15,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356308958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:15,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871426364] [2024-11-28 05:16:15,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:15,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:15,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:15,190 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:15,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 05:16:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:15,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:16:15,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:15,259 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:15,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871426364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:15,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:15,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 05:16:15,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843163251] [2024-11-28 05:16:15,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:15,285 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:16:15,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:16:15,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:16:15,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:16:15,287 INFO L87 Difference]: Start difference. First operand 7938 states and 11522 transitions. cyclomatic complexity: 3840 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:15,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:15,382 INFO L93 Difference]: Finished difference Result 15618 states and 22274 transitions. [2024-11-28 05:16:15,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15618 states and 22274 transitions. [2024-11-28 05:16:15,547 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 15616 [2024-11-28 05:16:15,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15618 states to 15618 states and 22274 transitions. [2024-11-28 05:16:15,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15618 [2024-11-28 05:16:15,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15618 [2024-11-28 05:16:15,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15618 states and 22274 transitions. [2024-11-28 05:16:15,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:16:15,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15618 states and 22274 transitions. [2024-11-28 05:16:15,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15618 states and 22274 transitions. [2024-11-28 05:16:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15618 to 15618. [2024-11-28 05:16:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15618 states, 15618 states have (on average 1.4261749263670125) internal successors, (22274), 15617 states have internal predecessors, (22274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:16:16,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15618 states to 15618 states and 22274 transitions. [2024-11-28 05:16:16,001 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15618 states and 22274 transitions. [2024-11-28 05:16:16,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:16:16,002 INFO L425 stractBuchiCegarLoop]: Abstraction has 15618 states and 22274 transitions. [2024-11-28 05:16:16,002 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-28 05:16:16,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15618 states and 22274 transitions. [2024-11-28 05:16:16,056 INFO L131 ngComponentsAnalysis]: Automaton has 512 accepting balls. 15616 [2024-11-28 05:16:16,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:16:16,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:16:16,058 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:16:16,058 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] [2024-11-28 05:16:16,059 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(16, 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_~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_~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_~cond~0#1;" [2024-11-28 05:16:16,059 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet15#1;main_~cond~0#1 := main_#t~nondet15#1;havoc main_#t~nondet15#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;" "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_~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);" [2024-11-28 05:16:16,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:16,060 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 10 times [2024-11-28 05:16:16,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:16,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601977511] [2024-11-28 05:16:16,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:16,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,066 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:16,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:16,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1492049382, now seen corresponding path program 1 times [2024-11-28 05:16:16,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:16,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548296711] [2024-11-28 05:16:16,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:16,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,081 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:16,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash 376454056, now seen corresponding path program 1 times [2024-11-28 05:16:16,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:16:16,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816074725] [2024-11-28 05:16:16,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:16,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,107 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:16:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,810 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:16:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:16:16,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 05:16:16 BoogieIcfgContainer [2024-11-28 05:16:16,870 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 05:16:16,871 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:16:16,871 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:16:16,871 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:16:16,872 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:16:10" (3/4) ... [2024-11-28 05:16:16,874 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 05:16:16,912 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:16:16,912 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:16:16,913 INFO L158 Benchmark]: Toolchain (without parser) took 6921.91ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 94.1MB in the beginning and 231.6MB in the end (delta: -137.5MB). Peak memory consumption was 93.2MB. Max. memory is 16.1GB. [2024-11-28 05:16:16,914 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:16:16,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.75ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 82.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:16:16,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.44ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:16:16,915 INFO L158 Benchmark]: Boogie Preprocessor took 77.79ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:16:16,915 INFO L158 Benchmark]: RCFGBuilder took 472.97ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 65.6MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:16:16,915 INFO L158 Benchmark]: BuchiAutomizer took 5911.10ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 65.3MB in the beginning and 234.8MB in the end (delta: -169.5MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2024-11-28 05:16:16,916 INFO L158 Benchmark]: Witness Printer took 41.76ms. Allocated memory is still 352.3MB. Free memory was 234.8MB in the beginning and 231.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:16:16,918 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.75ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 82.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.44ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 77.79ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 472.97ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 65.6MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 5911.10ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 65.3MB in the beginning and 234.8MB in the end (delta: -169.5MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. * Witness Printer took 41.76ms. Allocated memory is still 352.3MB. Free memory was 234.8MB in the beginning and 231.6MB in the end (delta: 3.2MB). 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 9 terminating modules (9 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.9 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 15618 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 10 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 0. Minimization of det autom 9. Minimization of nondet autom 0. Automata minimization 1.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.5s Buchi closure took 0.0s. 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, 409 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 1285 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 490 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 795 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI9 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: 44]: 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; [L42] int cond; Loop: [L45] cond = __VERIFIER_nondet_int() [L46] COND FALSE !(cond == 0) [L49] lk1 = 0 [L51] lk2 = 0 [L53] lk3 = 0 [L55] lk4 = 0 [L57] lk5 = 0 [L59] lk6 = 0 [L61] lk7 = 0 [L63] lk8 = 0 [L65] lk9 = 0 [L67] lk10 = 0 [L69] lk11 = 0 [L73] COND FALSE !(p1 != 0) [L77] COND FALSE !(p2 != 0) [L81] COND FALSE !(p3 != 0) [L85] COND FALSE !(p4 != 0) [L89] COND FALSE !(p5 != 0) [L93] COND FALSE !(p6 != 0) [L97] COND FALSE !(p7 != 0) [L101] COND FALSE !(p8 != 0) [L105] COND FALSE !(p9 != 0) [L109] COND FALSE !(p10 != 0) [L113] COND FALSE !(p11 != 0) [L119] COND FALSE !(p1 != 0) [L124] COND FALSE !(p2 != 0) [L129] COND FALSE !(p3 != 0) [L134] COND FALSE !(p4 != 0) [L139] COND FALSE !(p5 != 0) [L144] COND FALSE !(p6 != 0) [L149] COND FALSE !(p7 != 0) [L154] COND FALSE !(p8 != 0) [L159] COND FALSE !(p9 != 0) [L164] COND FALSE !(p10 != 0) [L169] COND FALSE !(p11 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 44]: 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; [L42] int cond; Loop: [L45] cond = __VERIFIER_nondet_int() [L46] COND FALSE !(cond == 0) [L49] lk1 = 0 [L51] lk2 = 0 [L53] lk3 = 0 [L55] lk4 = 0 [L57] lk5 = 0 [L59] lk6 = 0 [L61] lk7 = 0 [L63] lk8 = 0 [L65] lk9 = 0 [L67] lk10 = 0 [L69] lk11 = 0 [L73] COND FALSE !(p1 != 0) [L77] COND FALSE !(p2 != 0) [L81] COND FALSE !(p3 != 0) [L85] COND FALSE !(p4 != 0) [L89] COND FALSE !(p5 != 0) [L93] COND FALSE !(p6 != 0) [L97] COND FALSE !(p7 != 0) [L101] COND FALSE !(p8 != 0) [L105] COND FALSE !(p9 != 0) [L109] COND FALSE !(p10 != 0) [L113] COND FALSE !(p11 != 0) [L119] COND FALSE !(p1 != 0) [L124] COND FALSE !(p2 != 0) [L129] COND FALSE !(p3 != 0) [L134] COND FALSE !(p4 != 0) [L139] COND FALSE !(p5 != 0) [L144] COND FALSE !(p6 != 0) [L149] COND FALSE !(p7 != 0) [L154] COND FALSE !(p8 != 0) [L159] COND FALSE !(p9 != 0) [L164] COND FALSE !(p10 != 0) [L169] COND FALSE !(p11 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 05:16:16,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 05:16:17,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 05:16:17,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:17,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 05:16:17,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:16:17,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:16:18,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:16:18,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:16:18,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:16:18,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02f70b16-b25d-4815-88d1-8653f20cfaad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)