./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_5.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_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/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_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/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_bec52f48-9c97-4047-8c9c-67ad4a976e42/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 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:11:22,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:11:22,092 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 03:11:22,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:11:22,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:11:22,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:11:22,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:11:22,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:11:22,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:11:22,139 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:11:22,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:11:22,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:11:22,141 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:11:22,141 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 03:11:22,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:11:22,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:11:22,143 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 03:11:22,144 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:11:22,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:11:22,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:11:22,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:11:22,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:11:22,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 03:11:22,144 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 03:11:22,144 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_bec52f48-9c97-4047-8c9c-67ad4a976e42/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 -> 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 [2024-11-28 03:11:22,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:11:22,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:11:22,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:11:22,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:11:22,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:11:22,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/locks/test_locks_5.c [2024-11-28 03:11:25,623 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/data/1e8ad9d66/0e1c465a694247cc8791ca8f8fe6c0e7/FLAG6874d99ec [2024-11-28 03:11:25,876 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:11:25,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/sv-benchmarks/c/locks/test_locks_5.c [2024-11-28 03:11:25,888 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/data/1e8ad9d66/0e1c465a694247cc8791ca8f8fe6c0e7/FLAG6874d99ec [2024-11-28 03:11:25,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/data/1e8ad9d66/0e1c465a694247cc8791ca8f8fe6c0e7 [2024-11-28 03:11:25,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:11:25,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:11:25,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:25,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:11:25,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:11:25,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:25" (1/1) ... [2024-11-28 03:11:25,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b11b38f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:25, skipping insertion in model container [2024-11-28 03:11:25,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:25" (1/1) ... [2024-11-28 03:11:25,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:11:26,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:26,172 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:11:26,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:26,220 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:11:26,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26 WrapperNode [2024-11-28 03:11:26,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:26,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:26,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:11:26,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:11:26,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,258 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-11-28 03:11:26,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:26,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:11:26,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:11:26,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:11:26,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,272 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,286 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:11:26,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,292 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,303 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:11:26,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:11:26,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:11:26,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:11:26,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (1/1) ... [2024-11-28 03:11:26,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:11:26,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:26,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:11:26,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 03:11:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:11:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:11:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:11:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:11:26,436 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:11:26,438 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:11:26,596 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 03:11:26,596 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:11:26,605 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:11:26,605 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:11:26,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:26 BoogieIcfgContainer [2024-11-28 03:11:26,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:11:26,606 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 03:11:26,606 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 03:11:26,613 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 03:11:26,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:11:26,614 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:11:25" (1/3) ... [2024-11-28 03:11:26,615 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b4b9e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:11:26, skipping insertion in model container [2024-11-28 03:11:26,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:11:26,616 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:26" (2/3) ... [2024-11-28 03:11:26,617 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b4b9e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:11:26, skipping insertion in model container [2024-11-28 03:11:26,617 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:11:26,617 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:26" (3/3) ... [2024-11-28 03:11:26,619 INFO L363 chiAutomizerObserver]: Analyzing ICFG test_locks_5.c [2024-11-28 03:11:26,675 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 03:11:26,675 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 03:11:26,676 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 03:11:26,676 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 03:11:26,676 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 03:11:26,676 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 03:11:26,676 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 03:11:26,677 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 03:11:26,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:26,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-11-28 03:11:26,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:11:26,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:11:26,710 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:11:26,710 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:26,710 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 03:11:26,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:26,712 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2024-11-28 03:11:26,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:11:26,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:11:26,714 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:11:26,714 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:26,721 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1;" [2024-11-28 03:11:26,721 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#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;" "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_~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);" [2024-11-28 03:11:26,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 03:11:26,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:26,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566603370] [2024-11-28 03:11:26,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:26,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:26,829 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:26,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:11:26,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:26,855 INFO L85 PathProgramCache]: Analyzing trace with hash -2089480461, now seen corresponding path program 1 times [2024-11-28 03:11:26,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:26,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346731847] [2024-11-28 03:11:26,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:26,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:26,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:11:26,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346731847] [2024-11-28 03:11:26,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346731847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:26,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75354929] [2024-11-28 03:11:26,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:26,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:26,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:26,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:26,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:11:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:27,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:11:27,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:27,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75354929] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:27,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:27,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:11:27,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288504719] [2024-11-28 03:11:27,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:27,065 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:11:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:11:27,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:11:27,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:11:27,097 INFO L87 Difference]: Start difference. First operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 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 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:27,129 INFO L93 Difference]: Finished difference Result 43 states and 69 transitions. [2024-11-28 03:11:27,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 69 transitions. [2024-11-28 03:11:27,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2024-11-28 03:11:27,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 35 states and 53 transitions. [2024-11-28 03:11:27,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-11-28 03:11:27,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2024-11-28 03:11:27,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 53 transitions. [2024-11-28 03:11:27,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:11:27,140 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2024-11-28 03:11:27,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 53 transitions. [2024-11-28 03:11:27,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-28 03:11:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2024-11-28 03:11:27,170 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2024-11-28 03:11:27,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:11:27,176 INFO L425 stractBuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2024-11-28 03:11:27,177 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 03:11:27,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 53 transitions. [2024-11-28 03:11:27,179 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2024-11-28 03:11:27,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:11:27,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:11:27,181 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:11:27,181 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:27,181 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_~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_~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_~cond~0#1;" [2024-11-28 03:11:27,181 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#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;" "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_~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);" [2024-11-28 03:11:27,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,183 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-28 03:11:27,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349565079] [2024-11-28 03:11:27,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,199 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:11:27,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1812459825, now seen corresponding path program 1 times [2024-11-28 03:11:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156120375] [2024-11-28 03:11:27,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:27,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:11:27,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156120375] [2024-11-28 03:11:27,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156120375] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:27,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277612650] [2024-11-28 03:11:27,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:27,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:27,278 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:27,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:11:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:27,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:11:27,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:27,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:27,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277612650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:27,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:27,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:11:27,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841527904] [2024-11-28 03:11:27,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:27,354 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:11:27,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:11:27,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:11:27,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:11:27,355 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:27,383 INFO L93 Difference]: Finished difference Result 66 states and 98 transitions. [2024-11-28 03:11:27,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 98 transitions. [2024-11-28 03:11:27,387 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2024-11-28 03:11:27,388 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 98 transitions. [2024-11-28 03:11:27,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2024-11-28 03:11:27,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-11-28 03:11:27,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2024-11-28 03:11:27,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:11:27,389 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-11-28 03:11:27,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2024-11-28 03:11:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-28 03:11:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 65 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2024-11-28 03:11:27,398 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-11-28 03:11:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:11:27,399 INFO L425 stractBuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2024-11-28 03:11:27,399 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 03:11:27,399 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 98 transitions. [2024-11-28 03:11:27,400 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2024-11-28 03:11:27,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:11:27,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:11:27,401 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:11:27,401 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:27,401 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1;" [2024-11-28 03:11:27,401 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#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;" "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_~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);" [2024-11-28 03:11:27,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,403 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-28 03:11:27,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108812567] [2024-11-28 03:11:27,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,409 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:11:27,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1802449101, now seen corresponding path program 1 times [2024-11-28 03:11:27,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725045244] [2024-11-28 03:11:27,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:27,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:11:27,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725045244] [2024-11-28 03:11:27,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725045244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:27,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031233248] [2024-11-28 03:11:27,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:27,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:27,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:27,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:11:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:27,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:11:27,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:27,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:27,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031233248] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:27,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:27,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 03:11:27,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129991722] [2024-11-28 03:11:27,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:27,530 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:11:27,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:11:27,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:11:27,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:11:27,531 INFO L87 Difference]: Start difference. First operand 66 states and 98 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:27,549 INFO L93 Difference]: Finished difference Result 126 states and 182 transitions. [2024-11-28 03:11:27,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 182 transitions. [2024-11-28 03:11:27,552 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2024-11-28 03:11:27,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 182 transitions. [2024-11-28 03:11:27,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2024-11-28 03:11:27,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2024-11-28 03:11:27,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions. [2024-11-28 03:11:27,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:11:27,555 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2024-11-28 03:11:27,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions. [2024-11-28 03:11:27,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-11-28 03:11:27,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2024-11-28 03:11:27,568 INFO L240 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2024-11-28 03:11:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:11:27,569 INFO L425 stractBuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2024-11-28 03:11:27,570 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 03:11:27,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions. [2024-11-28 03:11:27,575 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2024-11-28 03:11:27,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:11:27,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:11:27,575 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:11:27,575 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:27,576 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_~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_~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_~cond~0#1;" [2024-11-28 03:11:27,576 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#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;" "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_~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);" [2024-11-28 03:11:27,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,576 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-28 03:11:27,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373844540] [2024-11-28 03:11:27,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,587 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:11:27,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,599 INFO L85 PathProgramCache]: Analyzing trace with hash -27441739, now seen corresponding path program 1 times [2024-11-28 03:11:27,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920912357] [2024-11-28 03:11:27,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:27,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 03:11:27,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920912357] [2024-11-28 03:11:27,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920912357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950931798] [2024-11-28 03:11:27,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:27,650 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:27,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:11:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:27,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:11:27,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:27,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:27,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950931798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:27,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:27,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 03:11:27,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783365332] [2024-11-28 03:11:27,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:27,739 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 03:11:27,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 03:11:27,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:11:27,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:11:27,740 INFO L87 Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 64 Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:27,771 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2024-11-28 03:11:27,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 338 transitions. [2024-11-28 03:11:27,804 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2024-11-28 03:11:27,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 338 transitions. [2024-11-28 03:11:27,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2024-11-28 03:11:27,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 242 [2024-11-28 03:11:27,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 242 states and 338 transitions. [2024-11-28 03:11:27,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 03:11:27,813 INFO L218 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2024-11-28 03:11:27,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states and 338 transitions. [2024-11-28 03:11:27,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2024-11-28 03:11:27,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.396694214876033) internal successors, (338), 241 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:11:27,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2024-11-28 03:11:27,836 INFO L240 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2024-11-28 03:11:27,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:11:27,839 INFO L425 stractBuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2024-11-28 03:11:27,839 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 03:11:27,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 338 transitions. [2024-11-28 03:11:27,841 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2024-11-28 03:11:27,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:11:27,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:11:27,841 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:11:27,841 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:27,841 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1;" [2024-11-28 03:11:27,841 INFO L749 eck$LassoCheckResult]: Loop: "havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#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;" "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_~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);" [2024-11-28 03:11:27,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-11-28 03:11:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470927423] [2024-11-28 03:11:27,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,847 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:11:27,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,852 INFO L85 PathProgramCache]: Analyzing trace with hash 29816563, now seen corresponding path program 1 times [2024-11-28 03:11:27,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923591416] [2024-11-28 03:11:27,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,857 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:11:27,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1243965365, now seen corresponding path program 1 times [2024-11-28 03:11:27,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:11:27,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41817409] [2024-11-28 03:11:27,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:27,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,870 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:27,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:11:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:28,221 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:28,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:11:28 BoogieIcfgContainer [2024-11-28 03:11:28,252 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 03:11:28,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:11:28,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:11:28,253 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:11:28,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:26" (3/4) ... [2024-11-28 03:11:28,256 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 03:11:28,287 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:11:28,288 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:11:28,289 INFO L158 Benchmark]: Toolchain (without parser) took 2355.04ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 87.6MB in the end (delta: 30.0MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-28 03:11:28,289 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 74.8MB in the end (delta: 86.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:28,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.61ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 106.7MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:11:28,290 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.06ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:28,290 INFO L158 Benchmark]: Boogie Preprocessor took 43.16ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:11:28,290 INFO L158 Benchmark]: RCFGBuilder took 301.75ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 93.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:11:28,291 INFO L158 Benchmark]: BuchiAutomizer took 1645.73ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 89.8MB in the end (delta: 3.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-11-28 03:11:28,291 INFO L158 Benchmark]: Witness Printer took 35.07ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 87.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:28,293 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 74.8MB in the end (delta: 86.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.61ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 106.7MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.06ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.16ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.0MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 301.75ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 93.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1645.73ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 89.8MB in the end (delta: 3.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 35.07ms. Allocated memory is still 142.6MB. Free memory was 89.8MB in the beginning and 87.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 242 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 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, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 275 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 176 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 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: 26]: 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; [L24] int cond; Loop: [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: 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; [L24] int cond; Loop: [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:11:28,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:11:28,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:11:28,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:11:28,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:11:29,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bec52f48-9c97-4047-8c9c-67ad4a976e42/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)