./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_04.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_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/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_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/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_b8234a45-6c80-438b-a059-29e960bc50c1/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 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:41:25,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:41:25,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 02:41:25,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:41:25,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:41:25,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:41:25,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:41:25,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:41:25,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:41:25,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:41:25,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:41:25,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:41:25,966 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:41:25,966 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 02:41:25,966 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 02:41:25,966 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 02:41:25,966 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 02:41:25,966 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 02:41:25,967 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 02:41:25,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:41:25,968 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 02:41:25,969 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:41:25,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:41:25,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:41:25,969 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:41:25,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:41:25,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 02:41:25,970 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 02:41:25,971 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_b8234a45-6c80-438b-a059-29e960bc50c1/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 -> 26441cee42562e2fd703b97b1a86d2baa847af9810285d31267fccda11d2ea67 [2024-11-28 02:41:26,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:41:26,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:41:26,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:41:26,312 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:41:26,313 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:41:26,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-restricted-15/NO_04.c [2024-11-28 02:41:29,239 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/data/0f85dd923/632cd5baa6fa46d48e2f7e277008ac76/FLAGef9beb98a [2024-11-28 02:41:29,473 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:41:29,474 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/sv-benchmarks/c/termination-restricted-15/NO_04.c [2024-11-28 02:41:29,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/data/0f85dd923/632cd5baa6fa46d48e2f7e277008ac76/FLAGef9beb98a [2024-11-28 02:41:29,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/data/0f85dd923/632cd5baa6fa46d48e2f7e277008ac76 [2024-11-28 02:41:29,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:41:29,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:41:29,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:29,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:41:29,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:41:29,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4220fe6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29, skipping insertion in model container [2024-11-28 02:41:29,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:41:29,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:29,759 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:41:29,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:41:29,796 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:41:29,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29 WrapperNode [2024-11-28 02:41:29,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:41:29,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:29,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:41:29,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:41:29,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,828 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-11-28 02:41:29,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:41:29,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:41:29,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:41:29,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:41:29,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,839 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,846 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 02:41:29,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:41:29,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:41:29,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:41:29,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:41:29,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (1/1) ... [2024-11-28 02:41:29,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:29,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:29,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:29,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 02:41:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:41:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:41:30,027 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:41:30,031 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:41:30,136 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-28 02:41:30,136 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:41:30,145 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:41:30,145 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-28 02:41:30,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:30 BoogieIcfgContainer [2024-11-28 02:41:30,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:41:30,147 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 02:41:30,147 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 02:41:30,153 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 02:41:30,154 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:41:30,154 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:41:29" (1/3) ... [2024-11-28 02:41:30,155 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a6db064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:41:30, skipping insertion in model container [2024-11-28 02:41:30,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:41:30,155 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:41:29" (2/3) ... [2024-11-28 02:41:30,155 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a6db064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:41:30, skipping insertion in model container [2024-11-28 02:41:30,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 02:41:30,155 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:30" (3/3) ... [2024-11-28 02:41:30,157 INFO L363 chiAutomizerObserver]: Analyzing ICFG NO_04.c [2024-11-28 02:41:30,219 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 02:41:30,219 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 02:41:30,220 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 02:41:30,221 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 02:41:30,221 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 02:41:30,221 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 02:41:30,222 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 02:41:30,222 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 02:41:30,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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 02:41:30,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-28 02:41:30,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:41:30,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:41:30,252 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:41:30,252 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:41:30,252 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 02:41:30,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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 02:41:30,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-28 02:41:30,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:41:30,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:41:30,256 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:41:30,256 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:41:30,263 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0;" [2024-11-28 02:41:30,263 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;" "main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0;" "assume !true;" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 02:41:30,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,269 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 02:41:30,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:30,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481280200] [2024-11-28 02:41:30,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:30,339 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:30,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:30,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1175495, now seen corresponding path program 1 times [2024-11-28 02:41:30,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:30,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283835198] [2024-11-28 02:41:30,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:30,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:41:30,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283835198] [2024-11-28 02:41:30,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283835198] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:30,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705397840] [2024-11-28 02:41:30,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:30,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:30,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:30,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:41:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:30,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:41:30,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:30,469 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:30,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705397840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:30,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:30,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-11-28 02:41:30,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981325499] [2024-11-28 02:41:30,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:30,476 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:41:30,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:41:30,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:41:30,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:41:30,510 INFO L87 Difference]: Start difference. First operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 02:41:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:30,516 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2024-11-28 02:41:30,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2024-11-28 02:41:30,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-28 02:41:30,523 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 20 transitions. [2024-11-28 02:41:30,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-28 02:41:30,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-28 02:41:30,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2024-11-28 02:41:30,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:41:30,526 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-28 02:41:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2024-11-28 02:41:30,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-28 02:41:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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 02:41:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2024-11-28 02:41:30,548 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-28 02:41:30,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:41:30,552 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-28 02:41:30,552 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 02:41:30,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2024-11-28 02:41:30,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-28 02:41:30,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:41:30,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:41:30,553 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:41:30,553 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 02:41:30,554 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_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0;" [2024-11-28 02:41:30,554 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;" "main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0;" "assume !(main_~j~0#1 < main_~a~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 02:41:30,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,554 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-11-28 02:41:30,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:30,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707642711] [2024-11-28 02:41:30,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:30,558 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:30,565 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:30,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1174069, now seen corresponding path program 1 times [2024-11-28 02:41:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:30,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455555061] [2024-11-28 02:41:30,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:30,574 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:30,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:30,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash 889601271, now seen corresponding path program 1 times [2024-11-28 02:41:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839448476] [2024-11-28 02:41:30,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:41:30,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839448476] [2024-11-28 02:41:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839448476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:30,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373994736] [2024-11-28 02:41:30,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:30,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:30,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:30,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:30,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:41:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:30,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:41:30,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:30,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:30,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373994736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:30,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:30,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 02:41:30,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266675114] [2024-11-28 02:41:30,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:30,882 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:41:30,883 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:41:30,883 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:41:30,883 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:41:30,884 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 02:41:30,884 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:30,884 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:41:30,884 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:41:30,884 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration2_Loop [2024-11-28 02:41:30,884 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:41:30,885 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:41:30,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:30,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:30,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:30,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:30,933 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:31,015 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:41:31,016 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 02:41:31,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 02:41:31,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:41:31,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:41:31,038 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:41:31,038 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:41:31,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 02:41:31,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,047 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 02:41:31,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:41:31,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:41:31,069 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:41:31,069 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:41:31,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:31,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,077 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 02:41:31,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:41:31,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:41:31,109 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 02:41:31,109 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 02:41:31,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 02:41:31,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,122 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 02:41:31,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 02:41:31,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:41:31,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 02:41:31,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,154 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 02:41:31,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 02:41:31,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 02:41:31,195 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 02:41:31,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-28 02:41:31,199 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 02:41:31,199 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 02:41:31,199 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 02:41:31,199 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 02:41:31,199 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 02:41:31,199 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,199 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 02:41:31,199 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 02:41:31,199 INFO L132 ssoRankerPreferences]: Filename of dumped script: NO_04.c_Iteration2_Loop [2024-11-28 02:41:31,199 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 02:41:31,199 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 02:41:31,201 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:31,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:31,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:31,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:31,230 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 02:41:31,292 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 02:41:31,297 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 02:41:31,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,300 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 02:41:31,304 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:41:31,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:41:31,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:41:31,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:41:31,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:41:31,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:41:31,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:41:31,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:41:31,326 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:41:31,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 02:41:31,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 02:41:31,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:41:31,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:41:31,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:41:31,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:41:31,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:41:31,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 02:41:31,357 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 02:41:31,362 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 02:41:31,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:31,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,374 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 02:41:31,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 02:41:31,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 02:41:31,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 02:41:31,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 02:41:31,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 02:41:31,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 02:41:31,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 02:41:31,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 02:41:31,396 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 02:41:31,401 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 02:41:31,404 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 02:41:31,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 02:41:31,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,410 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 02:41:31,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 02:41:31,413 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 02:41:31,413 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 02:41:31,414 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-28 02:41:31,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 02:41:31,427 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 02:41:31,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:31,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:41:31,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:31,482 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:41:31,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:41:31,569 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-28 02:41:31,570 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 02:41:31,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) Result 57 states and 74 transitions. Complement of second has 8 states. [2024-11-28 02:41:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-28 02:41:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 02:41:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2024-11-28 02:41:31,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-28 02:41:31,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:41:31,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-28 02:41:31,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:41:31,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-28 02:41:31,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 02:41:31,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 74 transitions. [2024-11-28 02:41:31,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2024-11-28 02:41:31,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 56 states and 73 transitions. [2024-11-28 02:41:31,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2024-11-28 02:41:31,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-28 02:41:31,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 73 transitions. [2024-11-28 02:41:31,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 02:41:31,680 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 73 transitions. [2024-11-28 02:41:31,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 73 transitions. [2024-11-28 02:41:31,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 35. [2024-11-28 02:41:31,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 34 states have internal predecessors, (46), 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 02:41:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2024-11-28 02:41:31,686 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 46 transitions. [2024-11-28 02:41:31,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:41:31,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:41:31,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:41:31,689 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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 02:41:31,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:31,760 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2024-11-28 02:41:31,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 70 transitions. [2024-11-28 02:41:31,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-11-28 02:41:31,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 29 states and 36 transitions. [2024-11-28 02:41:31,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2024-11-28 02:41:31,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-28 02:41:31,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2024-11-28 02:41:31,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:41:31,762 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-28 02:41:31,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2024-11-28 02:41:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-11-28 02:41:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 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 02:41:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2024-11-28 02:41:31,765 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-28 02:41:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:41:31,768 INFO L425 stractBuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2024-11-28 02:41:31,768 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 02:41:31,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2024-11-28 02:41:31,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-11-28 02:41:31,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:41:31,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:41:31,769 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:41:31,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 02:41:31,770 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_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0;" [2024-11-28 02:41:31,770 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;" "main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~a~0#1;" "main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1);" "assume !(main_~k~0#1 >= 0);" "main_~j~0#1 := 1 + main_~j~0#1;" "assume main_~j~0#1 < main_~a~0#1;" "main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1);" "assume !(main_~k~0#1 >= 0);" "main_~j~0#1 := 1 + main_~j~0#1;" "assume !(main_~j~0#1 < main_~a~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 02:41:31,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:31,770 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2024-11-28 02:41:31,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:31,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368256348] [2024-11-28 02:41:31,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:31,776 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:31,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:31,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:31,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1748895359, now seen corresponding path program 1 times [2024-11-28 02:41:31,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:31,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737117923] [2024-11-28 02:41:31,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:31,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:31,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:41:31,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737117923] [2024-11-28 02:41:31,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737117923] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:31,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835388749] [2024-11-28 02:41:31,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:31,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:31,957 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:31,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:41:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:31,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:41:31,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:32,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:32,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835388749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:32,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:32,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-11-28 02:41:32,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134548104] [2024-11-28 02:41:32,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:32,123 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:41:32,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:41:32,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:41:32,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:41:32,124 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 8 Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 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 02:41:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:32,415 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-11-28 02:41:32,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 67 transitions. [2024-11-28 02:41:32,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2024-11-28 02:41:32,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 54 states and 67 transitions. [2024-11-28 02:41:32,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2024-11-28 02:41:32,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2024-11-28 02:41:32,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 67 transitions. [2024-11-28 02:41:32,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:41:32,420 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 67 transitions. [2024-11-28 02:41:32,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 67 transitions. [2024-11-28 02:41:32,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-28 02:41:32,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 53 states have internal predecessors, (67), 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 02:41:32,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2024-11-28 02:41:32,428 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 67 transitions. [2024-11-28 02:41:32,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:41:32,429 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 67 transitions. [2024-11-28 02:41:32,430 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 02:41:32,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 67 transitions. [2024-11-28 02:41:32,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2024-11-28 02:41:32,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:41:32,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:41:32,431 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:41:32,431 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 02:41:32,431 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0;" [2024-11-28 02:41:32,431 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;" "main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~a~0#1;" "main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1);" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume !(main_~k~0#1 >= 0);" "main_~j~0#1 := 1 + main_~j~0#1;" "assume main_~j~0#1 < main_~a~0#1;" "main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1);" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume !(main_~k~0#1 >= 0);" "main_~j~0#1 := 1 + main_~j~0#1;" "assume !(main_~j~0#1 < main_~a~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 02:41:32,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:32,434 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2024-11-28 02:41:32,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:32,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114902674] [2024-11-28 02:41:32,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:32,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:32,439 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:32,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:32,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:32,445 INFO L85 PathProgramCache]: Analyzing trace with hash -228606983, now seen corresponding path program 1 times [2024-11-28 02:41:32,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:32,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902019553] [2024-11-28 02:41:32,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:32,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:32,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:41:32,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902019553] [2024-11-28 02:41:32,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902019553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:32,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983736435] [2024-11-28 02:41:32,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:32,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:32,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:32,624 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:32,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:41:32,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-28 02:41:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:32,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:41:32,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:32,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:32,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983736435] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:32,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:32,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-28 02:41:32,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611571386] [2024-11-28 02:41:32,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:32,876 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:41:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:41:32,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:41:32,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:41:32,877 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. cyclomatic complexity: 14 Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 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 02:41:33,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:33,152 INFO L93 Difference]: Finished difference Result 94 states and 114 transitions. [2024-11-28 02:41:33,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 114 transitions. [2024-11-28 02:41:33,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2024-11-28 02:41:33,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 94 states and 114 transitions. [2024-11-28 02:41:33,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2024-11-28 02:41:33,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2024-11-28 02:41:33,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 114 transitions. [2024-11-28 02:41:33,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:41:33,155 INFO L218 hiAutomatonCegarLoop]: Abstraction has 94 states and 114 transitions. [2024-11-28 02:41:33,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 114 transitions. [2024-11-28 02:41:33,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-28 02:41:33,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.2127659574468086) internal successors, (114), 93 states have internal predecessors, (114), 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 02:41:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2024-11-28 02:41:33,160 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 114 transitions. [2024-11-28 02:41:33,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:41:33,161 INFO L425 stractBuchiCegarLoop]: Abstraction has 94 states and 114 transitions. [2024-11-28 02:41:33,161 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 02:41:33,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 114 transitions. [2024-11-28 02:41:33,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 92 [2024-11-28 02:41:33,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:41:33,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:41:33,163 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 02:41:33,163 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [12, 12, 12, 12, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 02:41:33,163 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_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0;" [2024-11-28 02:41:33,163 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < 100;" "main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~a~0#1;" "main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1);" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume !(main_~k~0#1 >= 0);" "main_~j~0#1 := 1 + main_~j~0#1;" "assume main_~j~0#1 < main_~a~0#1;" "main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1);" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" "assume !(main_~m~0#1 >= 0);" "main_~l~0#1 := 1 + main_~l~0#1;" "assume !(main_~l~0#1 < main_~b~0#1);" "main_~k~0#1 := main_~k~0#1 - 1;" "assume !(main_~k~0#1 >= 0);" "main_~j~0#1 := 1 + main_~j~0#1;" "assume !(main_~j~0#1 < main_~a~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-11-28 02:41:33,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2024-11-28 02:41:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:33,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293000681] [2024-11-28 02:41:33,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:33,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,171 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:33,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1032141425, now seen corresponding path program 1 times [2024-11-28 02:41:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:33,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049714939] [2024-11-28 02:41:33,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:33,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:33,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 02:41:33,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049714939] [2024-11-28 02:41:33,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049714939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:41:33,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489491256] [2024-11-28 02:41:33,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:33,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:41:33,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:41:33,398 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:41:33,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:41:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:41:33,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:41:33,457 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:41:33,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:41:33,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489491256] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:41:33,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:41:33,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2024-11-28 02:41:33,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492268128] [2024-11-28 02:41:33,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:41:33,725 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 02:41:33,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 02:41:33,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:41:33,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:41:33,727 INFO L87 Difference]: Start difference. First operand 94 states and 114 transitions. cyclomatic complexity: 21 Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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 02:41:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:41:33,846 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-11-28 02:41:33,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2024-11-28 02:41:33,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:41:33,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 12 transitions. [2024-11-28 02:41:33,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-28 02:41:33,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-28 02:41:33,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 12 transitions. [2024-11-28 02:41:33,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 02:41:33,849 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-28 02:41:33,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 12 transitions. [2024-11-28 02:41:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-28 02:41:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0) internal successors, (12), 11 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 02:41:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-28 02:41:33,850 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-28 02:41:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:41:33,854 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-28 02:41:33,855 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 02:41:33,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 12 transitions. [2024-11-28 02:41:33,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 02:41:33,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 02:41:33,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 02:41:33,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:41:33,855 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 02:41:33,855 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~l~0#1, main_~m~0#1, main_~a~0#1, main_~b~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~l~0#1;havoc main_~m~0#1;havoc main_~a~0#1;havoc main_~b~0#1;main_~i~0#1 := 0;" "assume main_~i~0#1 < 100;" "main_~a~0#1 := 2 + main_~i~0#1;main_~j~0#1 := 0;" "assume main_~j~0#1 < main_~a~0#1;" "main_~k~0#1 := 3 + (main_~i~0#1 + main_~j~0#1);" "assume main_~k~0#1 >= 0;" "main_~b~0#1 := 4 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1);main_~l~0#1 := 0;" "assume main_~l~0#1 < main_~b~0#1;" "main_~m~0#1 := 1000 + (main_~i~0#1 + main_~j~0#1 + main_~k~0#1 + main_~l~0#1);" [2024-11-28 02:41:33,856 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~m~0#1 >= 0;" "main_~m~0#1 := main_~m~0#1;" [2024-11-28 02:41:33,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1757661613, now seen corresponding path program 1 times [2024-11-28 02:41:33,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:33,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576950934] [2024-11-28 02:41:33,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:33,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,868 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:33,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:33,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2501, now seen corresponding path program 1 times [2024-11-28 02:41:33,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:33,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425931248] [2024-11-28 02:41:33,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:33,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,878 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:33,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:41:33,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1190661225, now seen corresponding path program 1 times [2024-11-28 02:41:33,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 02:41:33,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019922548] [2024-11-28 02:41:33,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:41:33,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:41:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,884 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 02:41:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:33,998 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:41:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:41:34,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:41:34 BoogieIcfgContainer [2024-11-28 02:41:34,031 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 02:41:34,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:41:34,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:41:34,032 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:41:34,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:41:30" (3/4) ... [2024-11-28 02:41:34,035 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 02:41:34,073 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:41:34,073 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:41:34,075 INFO L158 Benchmark]: Toolchain (without parser) took 4523.65ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 92.5MB in the end (delta: 26.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-11-28 02:41:34,077 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:34,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.61ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 109.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:34,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.22ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 108.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:34,078 INFO L158 Benchmark]: Boogie Preprocessor took 37.85ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 107.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:34,078 INFO L158 Benchmark]: RCFGBuilder took 278.30ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 98.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:41:34,078 INFO L158 Benchmark]: BuchiAutomizer took 3884.54ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 94.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-28 02:41:34,079 INFO L158 Benchmark]: Witness Printer took 41.49ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 92.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:41:34,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.61ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 109.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.22ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 108.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.85ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 107.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.30ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 98.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3884.54ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 94.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 41.49ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 92.5MB 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 6 terminating modules (5 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function ((long) -1 * i) and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 16 locations. The remainder module has 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 6 iterations. TraceHistogramMax:12. Analysis of lassos took 2.6s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 579 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 578 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 132 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 79 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 25]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 VAL [i=0] [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a VAL [a=2, i=0, j=0] [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 VAL [a=2, i=0, j=0, k=3] [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 VAL [i=0] [L15] COND TRUE i < 100 VAL [i=0] [L16] a = i+2 [L17] j = 0 VAL [a=2, i=0, j=0] [L18] COND TRUE j < a VAL [a=2, i=0, j=0] [L19] k = i+j+3 VAL [a=2, i=0, j=0, k=3] [L20] COND TRUE k >= 0 VAL [a=2, i=0, j=0, k=3] [L21] b = i+j+k+4 [L22] l = 0 VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L23] COND TRUE l < b VAL [a=2, b=7, i=0, j=0, k=3, l=0] [L24] m = i+j+k+l+1000 VAL [a=2, b=7, i=0, j=0, k=3, l=0, m=1003] Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:41:34,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:34,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:34,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:41:34,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:41:34,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:41:35,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8234a45-6c80-438b-a059-29e960bc50c1/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)