./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_7.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_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/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_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/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_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/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 05c715fd95d2209519e9aa0425ca71b72050ac0ff5d332c8a9deb8ead8471230 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:15:46,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:15:46,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 23:15:46,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:15:46,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:15:46,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:15:46,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:15:46,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:15:46,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:15:46,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:15:46,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:15:46,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:15:46,206 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:15:46,206 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:15:46,206 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:15:46,207 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:15:46,207 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:15:46,207 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:15:46,207 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:15:46,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:15:46,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:15:46,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:15:46,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:15:46,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:15:46,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:15:46,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:15:46,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:15:46,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:15:46,209 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:15:46,209 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:15:46,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:15:46,210 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:15:46,210 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:15:46,210 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:15:46,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:15:46,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:46,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:15:46,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:15:46,211 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:15:46,211 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_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/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 -> 05c715fd95d2209519e9aa0425ca71b72050ac0ff5d332c8a9deb8ead8471230 [2024-11-27 23:15:46,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:15:46,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:15:46,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:15:46,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:15:46,660 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:15:46,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/locks/test_locks_7.c [2024-11-27 23:15:50,382 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/data/6e6fbadb8/62c6400530e24609bccd63490a3b2db4/FLAG2dd7729fa [2024-11-27 23:15:50,773 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:15:50,773 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/sv-benchmarks/c/locks/test_locks_7.c [2024-11-27 23:15:50,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/data/6e6fbadb8/62c6400530e24609bccd63490a3b2db4/FLAG2dd7729fa [2024-11-27 23:15:50,977 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/data/6e6fbadb8/62c6400530e24609bccd63490a3b2db4 [2024-11-27 23:15:50,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:15:50,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:15:50,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:50,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:15:50,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:15:50,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:50" (1/1) ... [2024-11-27 23:15:50,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7456cbd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:50, skipping insertion in model container [2024-11-27 23:15:50,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:15:50" (1/1) ... [2024-11-27 23:15:51,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:15:51,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:51,194 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:15:51,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:15:51,249 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:15:51,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51 WrapperNode [2024-11-27 23:15:51,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:15:51,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:51,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:15:51,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:15:51,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,287 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2024-11-27 23:15:51,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:15:51,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:15:51,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:15:51,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:15:51,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,325 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:15:51,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,325 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,333 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,354 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:15:51,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:15:51,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:15:51,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:15:51,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (1/1) ... [2024-11-27 23:15:51,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:15:51,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:51,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:15:51,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:15:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:15:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:15:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:15:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:15:51,537 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:15:51,540 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:15:51,777 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-27 23:15:51,777 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:15:51,789 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:15:51,789 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:15:51,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:51 BoogieIcfgContainer [2024-11-27 23:15:51,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:15:51,790 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:15:51,791 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:15:51,797 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:15:51,797 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:15:51,798 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:15:50" (1/3) ... [2024-11-27 23:15:51,799 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@163b31dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:15:51, skipping insertion in model container [2024-11-27 23:15:51,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:15:51,799 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:15:51" (2/3) ... [2024-11-27 23:15:51,799 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@163b31dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:15:51, skipping insertion in model container [2024-11-27 23:15:51,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:15:51,799 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:51" (3/3) ... [2024-11-27 23:15:51,801 INFO L363 chiAutomizerObserver]: Analyzing ICFG test_locks_7.c [2024-11-27 23:15:51,867 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:15:51,867 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:15:51,867 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:15:51,867 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:15:51,868 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:15:51,869 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:15:51,869 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:15:51,869 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:15:51,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.8) internal successors, (54), 30 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:51,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-27 23:15:51,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:51,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:51,905 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:51,905 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:51,905 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:15:51,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 31 states, 30 states have (on average 1.8) internal successors, (54), 30 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:51,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2024-11-27 23:15:51,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:51,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:51,909 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:51,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:51,919 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_~cond~0#1;" [2024-11-27 23:15:51,920 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet11#1;main_~cond~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#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;" "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_~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);" [2024-11-27 23:15:51,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:51,931 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-27 23:15:51,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:51,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331135241] [2024-11-27 23:15:51,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:51,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:52,054 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:52,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:52,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2067454588, now seen corresponding path program 1 times [2024-11-27 23:15:52,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:52,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711271483] [2024-11-27 23:15:52,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:52,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:15:52,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711271483] [2024-11-27 23:15:52,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711271483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:52,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441306039] [2024-11-27 23:15:52,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:52,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:52,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:52,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:15:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:52,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:15:52,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:52,377 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:52,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441306039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:15:52,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:15:52,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:15:52,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591834670] [2024-11-27 23:15:52,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:15:52,433 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:15:52,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:15:52,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:52,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:52,469 INFO L87 Difference]: Start difference. First operand has 31 states, 30 states have (on average 1.8) internal successors, (54), 30 states have internal predecessors, (54), 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 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:52,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:52,509 INFO L93 Difference]: Finished difference Result 55 states and 93 transitions. [2024-11-27 23:15:52,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 93 transitions. [2024-11-27 23:15:52,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-27 23:15:52,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 73 transitions. [2024-11-27 23:15:52,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2024-11-27 23:15:52,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2024-11-27 23:15:52,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 73 transitions. [2024-11-27 23:15:52,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:15:52,524 INFO L218 hiAutomatonCegarLoop]: Abstraction has 47 states and 73 transitions. [2024-11-27 23:15:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 73 transitions. [2024-11-27 23:15:52,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-27 23:15:52,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.553191489361702) internal successors, (73), 46 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:52,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 73 transitions. [2024-11-27 23:15:52,558 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 73 transitions. [2024-11-27 23:15:52,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:52,564 INFO L425 stractBuchiCegarLoop]: Abstraction has 47 states and 73 transitions. [2024-11-27 23:15:52,564 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 23:15:52,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 73 transitions. [2024-11-27 23:15:52,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2024-11-27 23:15:52,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:52,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:52,566 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:52,566 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:52,567 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(15, 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_~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_~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_~cond~0#1;" [2024-11-27 23:15:52,567 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet11#1;main_~cond~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#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;" "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_~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);" [2024-11-27 23:15:52,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-27 23:15:52,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:52,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201337753] [2024-11-27 23:15:52,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:52,577 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:52,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:52,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:52,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1216395458, now seen corresponding path program 1 times [2024-11-27 23:15:52,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:52,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37541332] [2024-11-27 23:15:52,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:52,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:15:52,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37541332] [2024-11-27 23:15:52,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37541332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:52,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913871188] [2024-11-27 23:15:52,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:52,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:52,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:52,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:15:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:52,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:15:52,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:52,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:52,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913871188] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:15:52,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:15:52,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:15:52,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807197582] [2024-11-27 23:15:52,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:15:52,805 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:15:52,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:15:52,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:52,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:52,806 INFO L87 Difference]: Start difference. First operand 47 states and 73 transitions. cyclomatic complexity: 28 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:52,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:52,830 INFO L93 Difference]: Finished difference Result 90 states and 138 transitions. [2024-11-27 23:15:52,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 138 transitions. [2024-11-27 23:15:52,833 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 88 [2024-11-27 23:15:52,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 90 states and 138 transitions. [2024-11-27 23:15:52,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 90 [2024-11-27 23:15:52,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2024-11-27 23:15:52,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 138 transitions. [2024-11-27 23:15:52,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:15:52,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 138 transitions. [2024-11-27 23:15:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 138 transitions. [2024-11-27 23:15:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-27 23:15:52,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.5333333333333334) internal successors, (138), 89 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 138 transitions. [2024-11-27 23:15:52,847 INFO L240 hiAutomatonCegarLoop]: Abstraction has 90 states and 138 transitions. [2024-11-27 23:15:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:52,849 INFO L425 stractBuchiCegarLoop]: Abstraction has 90 states and 138 transitions. [2024-11-27 23:15:52,849 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 23:15:52,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 138 transitions. [2024-11-27 23:15:52,851 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 88 [2024-11-27 23:15:52,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:52,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:52,851 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:52,851 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:52,852 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_~cond~0#1;" [2024-11-27 23:15:52,852 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet11#1;main_~cond~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#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;" "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_~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);" [2024-11-27 23:15:52,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:52,852 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-27 23:15:52,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:52,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480453922] [2024-11-27 23:15:52,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:52,859 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:52,866 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:52,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:52,866 INFO L85 PathProgramCache]: Analyzing trace with hash 629589444, now seen corresponding path program 1 times [2024-11-27 23:15:52,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:52,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985089125] [2024-11-27 23:15:52,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:52,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:15:52,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985089125] [2024-11-27 23:15:52,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985089125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:52,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732289074] [2024-11-27 23:15:52,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:52,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:52,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:52,917 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:52,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:15:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:52,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:15:52,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:53,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:53,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732289074] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:15:53,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:15:53,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:15:53,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551116664] [2024-11-27 23:15:53,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:15:53,064 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:15:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:15:53,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:53,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:53,067 INFO L87 Difference]: Start difference. First operand 90 states and 138 transitions. cyclomatic complexity: 52 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:53,105 INFO L93 Difference]: Finished difference Result 174 states and 262 transitions. [2024-11-27 23:15:53,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 174 states and 262 transitions. [2024-11-27 23:15:53,108 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 172 [2024-11-27 23:15:53,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 174 states to 174 states and 262 transitions. [2024-11-27 23:15:53,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2024-11-27 23:15:53,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 174 [2024-11-27 23:15:53,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 262 transitions. [2024-11-27 23:15:53,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:15:53,115 INFO L218 hiAutomatonCegarLoop]: Abstraction has 174 states and 262 transitions. [2024-11-27 23:15:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 262 transitions. [2024-11-27 23:15:53,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-27 23:15:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 174 states have (on average 1.5057471264367817) internal successors, (262), 173 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:53,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 262 transitions. [2024-11-27 23:15:53,142 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 262 transitions. [2024-11-27 23:15:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:53,147 INFO L425 stractBuchiCegarLoop]: Abstraction has 174 states and 262 transitions. [2024-11-27 23:15:53,147 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 23:15:53,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 174 states and 262 transitions. [2024-11-27 23:15:53,149 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 172 [2024-11-27 23:15:53,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:53,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:53,150 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:53,150 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:53,150 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(15, 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_~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_~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_~cond~0#1;" [2024-11-27 23:15:53,150 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet11#1;main_~cond~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#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;" "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_~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);" [2024-11-27 23:15:53,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:53,151 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-27 23:15:53,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:53,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502940812] [2024-11-27 23:15:53,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:53,161 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:53,174 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:53,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:53,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1330654022, now seen corresponding path program 1 times [2024-11-27 23:15:53,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:53,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518071752] [2024-11-27 23:15:53,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:53,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:15:53,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518071752] [2024-11-27 23:15:53,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518071752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:53,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858934224] [2024-11-27 23:15:53,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:53,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:53,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:53,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:15:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:53,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:15:53,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:53,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:53,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858934224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:15:53,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:15:53,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:15:53,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892720282] [2024-11-27 23:15:53,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:15:53,382 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:15:53,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:15:53,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:53,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:53,387 INFO L87 Difference]: Start difference. First operand 174 states and 262 transitions. cyclomatic complexity: 96 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:53,417 INFO L93 Difference]: Finished difference Result 338 states and 498 transitions. [2024-11-27 23:15:53,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 498 transitions. [2024-11-27 23:15:53,421 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 336 [2024-11-27 23:15:53,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 498 transitions. [2024-11-27 23:15:53,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2024-11-27 23:15:53,431 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2024-11-27 23:15:53,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 498 transitions. [2024-11-27 23:15:53,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:15:53,437 INFO L218 hiAutomatonCegarLoop]: Abstraction has 338 states and 498 transitions. [2024-11-27 23:15:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 498 transitions. [2024-11-27 23:15:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-27 23:15:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 338 states have (on average 1.4733727810650887) internal successors, (498), 337 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:53,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 498 transitions. [2024-11-27 23:15:53,472 INFO L240 hiAutomatonCegarLoop]: Abstraction has 338 states and 498 transitions. [2024-11-27 23:15:53,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:53,474 INFO L425 stractBuchiCegarLoop]: Abstraction has 338 states and 498 transitions. [2024-11-27 23:15:53,475 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 23:15:53,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 338 states and 498 transitions. [2024-11-27 23:15:53,479 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 336 [2024-11-27 23:15:53,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:53,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:53,480 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:53,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:53,480 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_~cond~0#1;" [2024-11-27 23:15:53,481 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet11#1;main_~cond~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#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;" "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_~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);" [2024-11-27 23:15:53,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:53,482 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-11-27 23:15:53,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:53,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869278841] [2024-11-27 23:15:53,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:53,495 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:53,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:53,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:53,510 INFO L85 PathProgramCache]: Analyzing trace with hash 937627012, now seen corresponding path program 1 times [2024-11-27 23:15:53,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:53,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438555469] [2024-11-27 23:15:53,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:53,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:15:53,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438555469] [2024-11-27 23:15:53,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438555469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:53,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022407341] [2024-11-27 23:15:53,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:53,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:53,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:53,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:15:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:53,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:15:53,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:53,666 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:53,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022407341] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:15:53,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:15:53,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:15:53,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697802187] [2024-11-27 23:15:53,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:15:53,687 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:15:53,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:15:53,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:53,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:53,689 INFO L87 Difference]: Start difference. First operand 338 states and 498 transitions. cyclomatic complexity: 176 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:53,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:53,712 INFO L93 Difference]: Finished difference Result 658 states and 946 transitions. [2024-11-27 23:15:53,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 658 states and 946 transitions. [2024-11-27 23:15:53,719 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 656 [2024-11-27 23:15:53,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 658 states to 658 states and 946 transitions. [2024-11-27 23:15:53,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 658 [2024-11-27 23:15:53,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 658 [2024-11-27 23:15:53,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 658 states and 946 transitions. [2024-11-27 23:15:53,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:15:53,736 INFO L218 hiAutomatonCegarLoop]: Abstraction has 658 states and 946 transitions. [2024-11-27 23:15:53,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states and 946 transitions. [2024-11-27 23:15:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2024-11-27 23:15:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 658 states have (on average 1.4376899696048633) internal successors, (946), 657 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:53,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 946 transitions. [2024-11-27 23:15:53,788 INFO L240 hiAutomatonCegarLoop]: Abstraction has 658 states and 946 transitions. [2024-11-27 23:15:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:53,790 INFO L425 stractBuchiCegarLoop]: Abstraction has 658 states and 946 transitions. [2024-11-27 23:15:53,790 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-27 23:15:53,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 658 states and 946 transitions. [2024-11-27 23:15:53,799 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 656 [2024-11-27 23:15:53,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:53,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:53,800 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:53,800 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:53,800 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(15, 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_~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_~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_~cond~0#1;" [2024-11-27 23:15:53,801 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet11#1;main_~cond~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#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;" "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_~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);" [2024-11-27 23:15:53,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2024-11-27 23:15:53,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:53,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191117268] [2024-11-27 23:15:53,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:53,815 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:53,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:53,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1617685382, now seen corresponding path program 1 times [2024-11-27 23:15:53,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:53,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647597140] [2024-11-27 23:15:53,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:53,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:15:53,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647597140] [2024-11-27 23:15:53,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647597140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:15:53,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546038960] [2024-11-27 23:15:53,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:53,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:15:53,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:15:53,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:15:53,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:15:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:15:53,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:15:53,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:15:53,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:15:53,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546038960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:15:53,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:15:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-27 23:15:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892074981] [2024-11-27 23:15:53,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:15:53,986 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:15:53,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:15:53,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:15:53,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:15:53,990 INFO L87 Difference]: Start difference. First operand 658 states and 946 transitions. cyclomatic complexity: 320 Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:15:54,028 INFO L93 Difference]: Finished difference Result 1282 states and 1794 transitions. [2024-11-27 23:15:54,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1282 states and 1794 transitions. [2024-11-27 23:15:54,046 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 1280 [2024-11-27 23:15:54,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1282 states to 1282 states and 1794 transitions. [2024-11-27 23:15:54,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1282 [2024-11-27 23:15:54,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1282 [2024-11-27 23:15:54,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1282 states and 1794 transitions. [2024-11-27 23:15:54,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:15:54,071 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1282 states and 1794 transitions. [2024-11-27 23:15:54,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states and 1794 transitions. [2024-11-27 23:15:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1282. [2024-11-27 23:15:54,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1282 states have (on average 1.3993759750390016) internal successors, (1794), 1281 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:15:54,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1794 transitions. [2024-11-27 23:15:54,138 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1282 states and 1794 transitions. [2024-11-27 23:15:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:15:54,140 INFO L425 stractBuchiCegarLoop]: Abstraction has 1282 states and 1794 transitions. [2024-11-27 23:15:54,140 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-27 23:15:54,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1282 states and 1794 transitions. [2024-11-27 23:15:54,152 INFO L131 ngComponentsAnalysis]: Automaton has 64 accepting balls. 1280 [2024-11-27 23:15:54,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:15:54,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:15:54,153 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-27 23:15:54,154 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:15:54,154 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~p6~0#1, main_~lk6~0#1, main_~p7~0#1, main_~lk7~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_#t~nondet9#1;main_~p6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_~lk6~0#1;havoc main_#t~nondet10#1;main_~p7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_~lk7~0#1;havoc main_~cond~0#1;" [2024-11-27 23:15:54,154 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet11#1;main_~cond~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#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;" "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_~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);" [2024-11-27 23:15:54,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:54,155 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 7 times [2024-11-27 23:15:54,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:54,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261558569] [2024-11-27 23:15:54,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:54,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,167 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:54,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:54,177 INFO L85 PathProgramCache]: Analyzing trace with hash 808338756, now seen corresponding path program 1 times [2024-11-27 23:15:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:54,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773603945] [2024-11-27 23:15:54,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,193 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:54,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:15:54,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1317176582, now seen corresponding path program 1 times [2024-11-27 23:15:54,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:15:54,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405886932] [2024-11-27 23:15:54,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:15:54,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:15:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,210 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:15:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,719 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:15:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:15:54,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:15:54 BoogieIcfgContainer [2024-11-27 23:15:54,763 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:15:54,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:15:54,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:15:54,764 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:15:54,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:15:51" (3/4) ... [2024-11-27 23:15:54,769 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 23:15:54,821 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:15:54,821 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:15:54,822 INFO L158 Benchmark]: Toolchain (without parser) took 3840.00ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 93.8MB in the beginning and 265.2MB in the end (delta: -171.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-27 23:15:54,822 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:54,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.67ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 82.6MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:15:54,823 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.63ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:54,824 INFO L158 Benchmark]: Boogie Preprocessor took 65.76ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:15:54,824 INFO L158 Benchmark]: RCFGBuilder took 434.57ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 68.3MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:15:54,825 INFO L158 Benchmark]: BuchiAutomizer took 2972.24ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 68.3MB in the beginning and 267.0MB in the end (delta: -198.8MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2024-11-27 23:15:54,825 INFO L158 Benchmark]: Witness Printer took 57.79ms. Allocated memory is still 343.9MB. Free memory was 267.0MB in the beginning and 265.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:15:54,828 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.67ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 82.6MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.63ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.76ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 434.57ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 68.3MB in the end (delta: 11.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2972.24ms. Allocated memory was 117.4MB in the beginning and 343.9MB in the end (delta: 226.5MB). Free memory was 68.3MB in the beginning and 267.0MB in the end (delta: -198.8MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Witness Printer took 57.79ms. Allocated memory is still 343.9MB. Free memory was 267.0MB in the beginning and 265.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. 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 6 terminating modules (6 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.6 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 1282 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 6. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s 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, 177 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 556 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 207 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 349 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI6 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: 32]: 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; [L30] int cond; Loop: [L33] cond = __VERIFIER_nondet_int() [L34] COND FALSE !(cond == 0) [L37] lk1 = 0 [L39] lk2 = 0 [L41] lk3 = 0 [L43] lk4 = 0 [L45] lk5 = 0 [L47] lk6 = 0 [L49] lk7 = 0 [L53] COND FALSE !(p1 != 0) [L57] COND FALSE !(p2 != 0) [L61] COND FALSE !(p3 != 0) [L65] COND FALSE !(p4 != 0) [L69] COND FALSE !(p5 != 0) [L73] COND FALSE !(p6 != 0) [L77] COND FALSE !(p7 != 0) [L83] COND FALSE !(p1 != 0) [L88] COND FALSE !(p2 != 0) [L93] COND FALSE !(p3 != 0) [L98] COND FALSE !(p4 != 0) [L103] COND FALSE !(p5 != 0) [L108] COND FALSE !(p6 != 0) [L113] COND FALSE !(p7 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 32]: 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; [L30] int cond; Loop: [L33] cond = __VERIFIER_nondet_int() [L34] COND FALSE !(cond == 0) [L37] lk1 = 0 [L39] lk2 = 0 [L41] lk3 = 0 [L43] lk4 = 0 [L45] lk5 = 0 [L47] lk6 = 0 [L49] lk7 = 0 [L53] COND FALSE !(p1 != 0) [L57] COND FALSE !(p2 != 0) [L61] COND FALSE !(p3 != 0) [L65] COND FALSE !(p4 != 0) [L69] COND FALSE !(p5 != 0) [L73] COND FALSE !(p6 != 0) [L77] COND FALSE !(p7 != 0) [L83] COND FALSE !(p1 != 0) [L88] COND FALSE !(p2 != 0) [L93] COND FALSE !(p3 != 0) [L98] COND FALSE !(p4 != 0) [L103] COND FALSE !(p5 != 0) [L108] COND FALSE !(p6 != 0) [L113] COND FALSE !(p7 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 23:15:54,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:15:55,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:15:55,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:15:55,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:15:55,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:15:55,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:15:56,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3d688f9-7392-4407-b7eb-6d9b10c2fbb5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)