./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-04-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/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_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-04-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/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 64bit --witnessprinter.graph.data.programhash f815f3ab50b7f44d2a4cc7a3cc9776599ba436b7ffe87c8d1b9c4b6bd093d6ef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:56:13,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:56:13,719 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 02:56:13,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:56:13,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:56:13,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:56:13,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:56:13,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:56:13,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:56:13,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:56:13,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:56:13,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:56:13,774 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:56:13,775 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:56:13,776 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:56:13,777 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:56:13,777 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:56:13,777 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:56:13,777 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:56:13,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:56:13,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:56:13,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:56:13,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:56:13,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:56:13,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:56:13,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:56:13,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:56:13,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:56:13,780 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:56:13,780 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_d44ec523-5150-432d-bdec-4f277aedf9a0/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f815f3ab50b7f44d2a4cc7a3cc9776599ba436b7ffe87c8d1b9c4b6bd093d6ef [2024-11-28 02:56:14,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:56:14,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:56:14,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:56:14,181 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:56:14,181 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:56:14,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-bwb/not-04-false.c [2024-11-28 02:56:17,410 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/data/b2067efee/6e9ba1ae3dfb42d8986bde2dffa4186d/FLAG98301454a [2024-11-28 02:56:17,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:56:17,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/sv-benchmarks/c/termination-bwb/not-04-false.c [2024-11-28 02:56:17,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/data/b2067efee/6e9ba1ae3dfb42d8986bde2dffa4186d/FLAG98301454a [2024-11-28 02:56:17,795 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/data/b2067efee/6e9ba1ae3dfb42d8986bde2dffa4186d [2024-11-28 02:56:17,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:56:17,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:56:17,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:17,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:56:17,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:56:17,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:17" (1/1) ... [2024-11-28 02:56:17,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f01109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:17, skipping insertion in model container [2024-11-28 02:56:17,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:17" (1/1) ... [2024-11-28 02:56:17,842 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:56:18,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:18,033 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:56:18,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:56:18,065 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:56:18,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18 WrapperNode [2024-11-28 02:56:18,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:56:18,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:18,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:56:18,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:56:18,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,098 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-28 02:56:18,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:56:18,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:56:18,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:56:18,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:56:18,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,122 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 02:56:18,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,125 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:56:18,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:56:18,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:56:18,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:56:18,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (1/1) ... [2024-11-28 02:56:18,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:18,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:18,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:18,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:56:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:56:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:56:18,299 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:56:18,301 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:56:18,404 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-28 02:56:18,404 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:56:18,416 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:56:18,416 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:56:18,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:18 BoogieIcfgContainer [2024-11-28 02:56:18,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:56:18,419 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:56:18,419 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:56:18,426 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:56:18,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:56:18,428 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:56:17" (1/3) ... [2024-11-28 02:56:18,430 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33bb787d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:56:18, skipping insertion in model container [2024-11-28 02:56:18,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:56:18,430 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:18" (2/3) ... [2024-11-28 02:56:18,432 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33bb787d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:56:18, skipping insertion in model container [2024-11-28 02:56:18,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:56:18,432 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:18" (3/3) ... [2024-11-28 02:56:18,434 INFO L363 chiAutomizerObserver]: Analyzing ICFG not-04-false.c [2024-11-28 02:56:18,515 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:56:18,516 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:56:18,516 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:56:18,516 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:56:18,516 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:56:18,517 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:56:18,517 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:56:18,518 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:56:18,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 02:56:18,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:56:18,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:56:18,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:56:18,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:56:18,549 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:56:18,550 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:56:18,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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 02:56:18,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:56:18,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:56:18,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:56:18,552 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:56:18,552 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:56:18,560 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0;" [2024-11-28 02:56:18,561 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 < 0;" "assume !(main_~x~0#1 < 0 && main_~y~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - 1;" [2024-11-28 02:56:18,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 02:56:18,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:56:18,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206539695] [2024-11-28 02:56:18,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:18,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:18,670 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:56:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:18,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:56:18,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:18,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1225, now seen corresponding path program 1 times [2024-11-28 02:56:18,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:56:18,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123539376] [2024-11-28 02:56:18,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:18,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:18,707 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:56:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:18,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:56:18,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:18,714 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2024-11-28 02:56:18,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:56:18,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199704601] [2024-11-28 02:56:18,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:18,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:18,723 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:56:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:56:18,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:56:18,845 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:56:18,846 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:56:18,846 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:56:18,846 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:56:18,846 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:56:18,847 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:18,847 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:56:18,847 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:56:18,847 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-04-false.c_Iteration1_Loop [2024-11-28 02:56:18,847 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:56:18,847 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:56:18,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:56:18,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:56:18,941 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:56:18,941 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:56:18,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:18,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:18,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:18,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 02:56:18,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:56:18,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:18,977 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:56:18,977 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:56:18,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 02:56:18,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:18,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:18,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:18,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 02:56:18,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:56:18,990 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 02:56:19,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,018 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 02:56:19,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:56:19,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,064 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:56:19,065 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 9, 1] Nus: [1, 1] [2024-11-28 02:56:19,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:19,092 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:56:19,092 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:56:19,093 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:56:19,093 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:56:19,093 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:56:19,093 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,093 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:56:19,093 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:56:19,093 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-04-false.c_Iteration1_Lasso [2024-11-28 02:56:19,093 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:56:19,093 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:56:19,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:56:19,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:56:19,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:56:19,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:56:19,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:56:19,185 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:56:19,185 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:56:19,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,191 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 02:56:19,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:56:19,194 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,225 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:56:19,225 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:56:19,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:19,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 02:56:19,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:56:19,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,265 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:56:19,265 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:56:19,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 02:56:19,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,276 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 02:56:19,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:56:19,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,297 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:56:19,297 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:56:19,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 02:56:19,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,306 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 02:56:19,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:56:19,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,328 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:56:19,328 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:56:19,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 02:56:19,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,339 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 02:56:19,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:56:19,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 02:56:19,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:56:19,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:19,369 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:56:19,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 02:56:19,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:56:19,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:56:19,419 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:56:19,419 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 9, 1] Nus: [1, 1] [2024-11-28 02:56:19,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:19,455 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,457 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,458 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,458 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,459 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,460 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,470 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 02:56:19,471 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 02:56:19,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:56:19 BoogieIcfgContainer [2024-11-28 02:56:19,472 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:56:19,473 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:56:19,473 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:56:19,474 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:56:19,474 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:18" (3/4) ... [2024-11-28 02:56:19,477 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 02:56:19,479 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 02:56:19,480 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-11-28 02:56:19,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:56:19,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:56:19,527 INFO L158 Benchmark]: Toolchain (without parser) took 1726.28ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 75.0MB in the end (delta: 56.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 02:56:19,528 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:19,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.03ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 121.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:19,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.91ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 120.4MB in the end (delta: 741.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:19,532 INFO L158 Benchmark]: Boogie Preprocessor took 38.01ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 119.4MB in the end (delta: 999.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:19,532 INFO L158 Benchmark]: RCFGBuilder took 277.52ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 110.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:56:19,533 INFO L158 Benchmark]: BuchiAutomizer took 1053.59ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 76.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 02:56:19,533 INFO L158 Benchmark]: Witness Printer took 51.34ms. Allocated memory is still 167.8MB. Free memory was 76.7MB in the beginning and 75.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:56:19,536 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.03ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 121.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.91ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 120.4MB in the end (delta: 741.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.01ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 119.4MB in the end (delta: 999.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.52ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 110.3MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1053.59ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 76.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 51.34ms. Allocated memory is still 167.8MB. Free memory was 76.7MB in the beginning and 75.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~nondet1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~nondet1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~nondet1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #t~nondet0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. [2024-11-28 02:56:19,550 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,551 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,551 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,553 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,553 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,553 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,554 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,554 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,554 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,554 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 [2024-11-28 02:56:19,555 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet1 [2024-11-28 02:56:19,556 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #t~nondet0 Nontermination argument in form of an infinite execution State at position 0 is {y=-1, x=-1, \result=0} State at position 1 is {y=-1, x=-1, \result=0} For i>1, the state at position i is {y=-1 + sum_{k=0}^i 0, x=-1 + sum_{k=0}^i -1, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 9, 1] Mus: [1, 1] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int a, x, y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] a = 0 Loop: [L17] COND TRUE x<0 [L18] COND FALSE !(x < 0 && y>= 0) [L21] x = x-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:56:19,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d44ec523-5150-432d-bdec-4f277aedf9a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)