./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.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_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1 --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 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 05:52:23,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 05:52:23,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 05:52:23,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 05:52:23,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 05:52:23,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 05:52:23,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 05:52:23,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 05:52:23,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 05:52:23,903 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 05:52:23,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 05:52:23,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 05:52:23,903 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 05:52:23,903 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 05:52:23,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 05:52:23,904 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 05:52:23,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 05:52:23,905 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 05:52:23,905 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 05:52:23,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 05:52:23,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 05:52:23,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 05:52:23,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 05:52:23,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 05:52:23,905 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 05:52:23,905 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_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1 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 -> 086de8df2449d866ff611c83674a9697b7d09f2a2b1c5c922e46b0c1131a7d5c [2024-12-02 05:52:24,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 05:52:24,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 05:52:24,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 05:52:24,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 05:52:24,153 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 05:52:24,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-12-02 05:52:26,772 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/data/a591dca61/d39afe0d767e4695b89472ec5dccaec0/FLAGc55ef6652 [2024-12-02 05:52:26,973 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 05:52:26,973 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-12-02 05:52:26,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/data/a591dca61/d39afe0d767e4695b89472ec5dccaec0/FLAGc55ef6652 [2024-12-02 05:52:26,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/data/a591dca61/d39afe0d767e4695b89472ec5dccaec0 [2024-12-02 05:52:26,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 05:52:26,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 05:52:26,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 05:52:26,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 05:52:26,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 05:52:27,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:26" (1/1) ... [2024-12-02 05:52:27,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed7ae5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27, skipping insertion in model container [2024-12-02 05:52:27,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:52:26" (1/1) ... [2024-12-02 05:52:27,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 05:52:27,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:52:27,131 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 05:52:27,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 05:52:27,154 INFO L204 MainTranslator]: Completed translation [2024-12-02 05:52:27,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27 WrapperNode [2024-12-02 05:52:27,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 05:52:27,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 05:52:27,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 05:52:27,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 05:52:27,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,178 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-12-02 05:52:27,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 05:52:27,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 05:52:27,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 05:52:27,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 05:52:27,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,189 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 05:52:27,190 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,191 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 05:52:27,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 05:52:27,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 05:52:27,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 05:52:27,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (1/1) ... [2024-12-02 05:52:27,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:27,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:27,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:27,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 05:52:27,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 05:52:27,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 05:52:27,301 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 05:52:27,302 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 05:52:27,349 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-02 05:52:27,349 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 05:52:27,355 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 05:52:27,356 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 05:52:27,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:27 BoogieIcfgContainer [2024-12-02 05:52:27,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 05:52:27,357 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 05:52:27,357 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 05:52:27,361 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 05:52:27,362 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 05:52:27,362 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 05:52:26" (1/3) ... [2024-12-02 05:52:27,363 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2264fa2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 05:52:27, skipping insertion in model container [2024-12-02 05:52:27,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 05:52:27,363 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:52:27" (2/3) ... [2024-12-02 05:52:27,363 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2264fa2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 05:52:27, skipping insertion in model container [2024-12-02 05:52:27,363 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 05:52:27,363 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:27" (3/3) ... [2024-12-02 05:52:27,364 INFO L363 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2024-12-02 05:52:27,405 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 05:52:27,405 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 05:52:27,405 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 05:52:27,405 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 05:52:27,405 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 05:52:27,405 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 05:52:27,405 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 05:52:27,405 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 05:52:27,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2024-12-02 05:52:27,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:27,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 05:52:27,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 05:52:27,425 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 05:52:27,425 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 05:52:27,425 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 05:52:27,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2024-12-02 05:52:27,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:27,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 05:52:27,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 05:52:27,427 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 05:52:27,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 05:52:27,433 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0;" [2024-12-02 05:52:27,433 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" [2024-12-02 05:52:27,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-12-02 05:52:27,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 05:52:27,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828114248] [2024-12-02 05:52:27,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:27,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:27,498 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:52:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:27,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 05:52:27,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:27,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2024-12-02 05:52:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 05:52:27,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662897062] [2024-12-02 05:52:27,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:27,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:27,522 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:52:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:27,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 05:52:27,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:27,528 INFO L85 PathProgramCache]: Analyzing trace with hash 28693896, now seen corresponding path program 1 times [2024-12-02 05:52:27,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 05:52:27,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167817066] [2024-12-02 05:52:27,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:27,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:27,538 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:52:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:27,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 05:52:27,615 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 05:52:27,615 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 05:52:27,616 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 05:52:27,616 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 05:52:27,616 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 05:52:27,616 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:27,616 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 05:52:27,616 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 05:52:27,616 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2024-12-02 05:52:27,617 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 05:52:27,617 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 05:52:27,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,730 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 05:52:27,731 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 05:52:27,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:27,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:27,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:27,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 05:52:27,737 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 05:52:27,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:27,765 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 05:52:27,765 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: [] [2024-12-02 05:52:27,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 05:52:27,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:27,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:27,773 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:27,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 05:52:27,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 05:52:27,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:27,794 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 05:52:27,794 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: [] [2024-12-02 05:52:27,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 05:52:27,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:27,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:27,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:27,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 05:52:27,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 05:52:27,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:27,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 05:52:27,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:27,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:27,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:27,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 05:52:27,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 05:52:27,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:27,911 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 05:52:27,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 05:52:27,914 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 05:52:27,914 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 05:52:27,914 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 05:52:27,914 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 05:52:27,914 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 05:52:27,914 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:27,914 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 05:52:27,914 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 05:52:27,914 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2024-12-02 05:52:27,914 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 05:52:27,914 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 05:52:27,916 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,935 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:27,997 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 05:52:28,000 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 05:52:28,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 05:52:28,005 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 [2024-12-02 05:52:28,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 05:52:28,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 05:52:28,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 05:52:28,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 05:52:28,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 05:52:28,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 05:52:28,030 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 05:52:28,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 05:52:28,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,041 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 05:52:28,044 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 [2024-12-02 05:52:28,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 05:52:28,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 05:52:28,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 05:52:28,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 05:52:28,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 05:52:28,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 05:52:28,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 05:52:28,061 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 05:52:28,065 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 05:52:28,068 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 05:52:28,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,072 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 05:52:28,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 05:52:28,075 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 05:52:28,075 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 05:52:28,075 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~v2~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-12-02 05:52:28,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 05:52:28,083 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 05:52:28,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 05:52:28,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,123 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:52:28,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:52:28,156 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 05:52:28,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-12-02 05:52:28,193 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 25 states and 33 transitions. Complement of second has 6 states. [2024-12-02 05:52:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 05:52:28,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-12-02 05:52:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2024-12-02 05:52:28,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2024-12-02 05:52:28,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:28,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2024-12-02 05:52:28,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:28,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2024-12-02 05:52:28,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:28,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2024-12-02 05:52:28,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:28,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2024-12-02 05:52:28,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-12-02 05:52:28,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-12-02 05:52:28,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-12-02 05:52:28,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 05:52:28,213 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-12-02 05:52:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-12-02 05:52:28,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-12-02 05:52:28,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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) [2024-12-02 05:52:28,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2024-12-02 05:52:28,236 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-12-02 05:52:28,237 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-12-02 05:52:28,237 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 05:52:28,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2024-12-02 05:52:28,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:28,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 05:52:28,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 05:52:28,237 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-12-02 05:52:28,238 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 05:52:28,238 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0;" "assume main_~v1~0#1 > 0;" "assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0;" [2024-12-02 05:52:28,238 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" [2024-12-02 05:52:28,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:28,238 INFO L85 PathProgramCache]: Analyzing trace with hash 28693898, now seen corresponding path program 1 times [2024-12-02 05:52:28,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 05:52:28,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684520337] [2024-12-02 05:52:28,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:28,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 05:52:28,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 05:52:28,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684520337] [2024-12-02 05:52:28,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684520337] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:28,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663715677] [2024-12-02 05:52:28,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:28,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:52:28,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,295 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 05:52:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:52:28,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:28,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:52:28,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663715677] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:52:28,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:52:28,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 3 [2024-12-02 05:52:28,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913964600] [2024-12-02 05:52:28,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:52:28,366 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 05:52:28,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 2 times [2024-12-02 05:52:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 05:52:28,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996840324] [2024-12-02 05:52:28,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:28,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:28,372 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:52:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:28,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 05:52:28,406 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 05:52:28,406 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 05:52:28,406 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 05:52:28,406 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 05:52:28,406 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 05:52:28,406 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,406 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 05:52:28,406 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 05:52:28,407 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2024-12-02 05:52:28,407 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 05:52:28,407 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 05:52:28,408 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,411 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,418 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,478 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 05:52:28,478 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 05:52:28,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 05:52:28,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 05:52:28,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:28,506 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 05:52:28,506 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 05:52:28,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 05:52:28,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,517 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 05:52:28,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 05:52:28,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:28,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 05:52:28,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,545 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 05:52:28,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 05:52:28,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:28,639 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 05:52:28,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 05:52:28,641 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 05:52:28,641 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 05:52:28,641 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 05:52:28,641 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 05:52:28,641 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 05:52:28,642 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,642 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 05:52:28,642 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 05:52:28,642 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2024-12-02 05:52:28,642 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 05:52:28,642 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 05:52:28,643 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,645 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,653 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:28,700 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 05:52:28,701 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 05:52:28,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,702 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 05:52:28,705 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 [2024-12-02 05:52:28,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 05:52:28,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 05:52:28,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 05:52:28,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 05:52:28,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 05:52:28,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 05:52:28,722 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 05:52:28,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-12-02 05:52:28,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,729 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 05:52:28,732 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 [2024-12-02 05:52:28,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 05:52:28,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 05:52:28,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 05:52:28,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 05:52:28,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 05:52:28,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 05:52:28,744 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 05:52:28,747 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 05:52:28,751 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 05:52:28,751 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 05:52:28,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,753 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 05:52:28,755 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 05:52:28,755 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 05:52:28,755 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 05:52:28,755 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~v2~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-12-02 05:52:28,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 05:52:28,763 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 05:52:28,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 05:52:28,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,793 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:52:28,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:52:28,797 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 05:52:28,797 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-12-02 05:52:28,806 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13 states and 18 transitions. Complement of second has 5 states. [2024-12-02 05:52:28,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 05:52:28,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-12-02 05:52:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-12-02 05:52:28,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2024-12-02 05:52:28,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:28,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2024-12-02 05:52:28,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:28,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2024-12-02 05:52:28,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:28,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2024-12-02 05:52:28,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:28,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2024-12-02 05:52:28,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-12-02 05:52:28,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-12-02 05:52:28,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2024-12-02 05:52:28,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 05:52:28,810 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-12-02 05:52:28,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2024-12-02 05:52:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-12-02 05:52:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2024-12-02 05:52:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2024-12-02 05:52:28,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-12-02 05:52:28,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 05:52:28,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 05:52:28,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 05:52:28,814 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-12-02 05:52:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:28,825 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2024-12-02 05:52:28,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2024-12-02 05:52:28,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:28,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 18 transitions. [2024-12-02 05:52:28,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-12-02 05:52:28,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-12-02 05:52:28,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2024-12-02 05:52:28,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 05:52:28,826 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2024-12-02 05:52:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2024-12-02 05:52:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-12-02 05:52:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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) [2024-12-02 05:52:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2024-12-02 05:52:28,828 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-12-02 05:52:28,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 05:52:28,829 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-12-02 05:52:28,829 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 05:52:28,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2024-12-02 05:52:28,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:28,830 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 05:52:28,830 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 05:52:28,830 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2024-12-02 05:52:28,830 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 05:52:28,830 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~m~0#1, main_~n~0#1, main_~v1~0#1, main_~v2~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_~v1~0#1;havoc main_~v2~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~n~0#1 >= 0 && main_~m~0#1 > 0;main_~v1~0#1 := main_~n~0#1;main_~v2~0#1 := 0;" "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" "assume main_~v1~0#1 > 0;" "assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0;" "assume main_~v1~0#1 > 0;" "assume !(main_~v2~0#1 < main_~m~0#1);main_~v2~0#1 := 0;" [2024-12-02 05:52:28,830 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~v1~0#1 > 0;" "assume main_~v2~0#1 < main_~m~0#1;main_~v2~0#1 := 1 + main_~v2~0#1;main_~v1~0#1 := main_~v1~0#1 - 1;" [2024-12-02 05:52:28,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:28,830 INFO L85 PathProgramCache]: Analyzing trace with hash -532342184, now seen corresponding path program 1 times [2024-12-02 05:52:28,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 05:52:28,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129079655] [2024-12-02 05:52:28,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:28,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 05:52:28,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129079655] [2024-12-02 05:52:28,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129079655] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 05:52:28,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535569718] [2024-12-02 05:52:28,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:28,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 05:52:28,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:28,885 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 05:52:28,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 05:52:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:28,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 05:52:28,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:28,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 05:52:28,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535569718] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 05:52:28,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 05:52:28,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-12-02 05:52:28,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636492522] [2024-12-02 05:52:28,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 05:52:28,955 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 05:52:28,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:28,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 3 times [2024-12-02 05:52:28,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 05:52:28,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010447848] [2024-12-02 05:52:28,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 05:52:28,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 05:52:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:28,960 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 05:52:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 05:52:28,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 05:52:28,994 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 05:52:28,994 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 05:52:28,994 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 05:52:28,994 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 05:52:28,994 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 05:52:28,994 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:28,994 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 05:52:28,994 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 05:52:28,994 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2024-12-02 05:52:28,994 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 05:52:28,995 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 05:52:28,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,012 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,054 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 05:52:29,055 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 05:52:29,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:29,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:29,057 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:29,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 05:52:29,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 05:52:29,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:29,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 05:52:29,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:29,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:29,084 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:29,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 05:52:29,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 05:52:29,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 05:52:29,110 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 05:52:29,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 05:52:29,113 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 05:52:29,113 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 05:52:29,113 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 05:52:29,113 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 05:52:29,113 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 05:52:29,113 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:29,113 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 05:52:29,113 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 05:52:29,113 INFO L132 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2024-12-02 05:52:29,113 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 05:52:29,113 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 05:52:29,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 05:52:29,163 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 05:52:29,163 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 05:52:29,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:29,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:29,165 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:29,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 05:52:29,167 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 [2024-12-02 05:52:29,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 05:52:29,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 05:52:29,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 05:52:29,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 05:52:29,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 05:52:29,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 05:52:29,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 05:52:29,181 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 05:52:29,183 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 05:52:29,184 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 05:52:29,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 05:52:29,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 05:52:29,185 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 05:52:29,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 05:52:29,187 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 05:52:29,187 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 05:52:29,188 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 05:52:29,188 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0#1) = 1*ULTIMATE.start_main_~v1~0#1 Supporting invariants [] [2024-12-02 05:52:29,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 05:52:29,194 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 05:52:29,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 05:52:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:29,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 05:52:29,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 05:52:29,229 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 05:52:29,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 05:52:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 05:52:29,242 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-12-02 05:52:29,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-12-02 05:52:29,255 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 19 states and 27 transitions. Complement of second has 4 states. [2024-12-02 05:52:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 05:52:29,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-12-02 05:52:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-12-02 05:52:29,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2024-12-02 05:52:29,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:29,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 05:52:29,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:29,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 4 letters. [2024-12-02 05:52:29,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 05:52:29,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2024-12-02 05:52:29,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 05:52:29,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 25 transitions. [2024-12-02 05:52:29,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-12-02 05:52:29,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-12-02 05:52:29,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2024-12-02 05:52:29,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 05:52:29,259 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 25 transitions. [2024-12-02 05:52:29,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2024-12-02 05:52:29,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2024-12-02 05:52:29,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 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) [2024-12-02 05:52:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2024-12-02 05:52:29,261 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2024-12-02 05:52:29,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 05:52:29,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 05:52:29,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 05:52:29,262 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-12-02 05:52:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 05:52:29,269 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2024-12-02 05:52:29,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2024-12-02 05:52:29,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 05:52:29,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2024-12-02 05:52:29,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 05:52:29,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 05:52:29,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 05:52:29,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 05:52:29,271 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 05:52:29,271 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 05:52:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 05:52:29,271 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 05:52:29,272 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 05:52:29,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 05:52:29,272 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 05:52:29,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 05:52:29,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 05:52:29 BoogieIcfgContainer [2024-12-02 05:52:29,280 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 05:52:29,280 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 05:52:29,280 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 05:52:29,280 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 05:52:29,281 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:52:27" (3/4) ... [2024-12-02 05:52:29,283 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 05:52:29,284 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 05:52:29,284 INFO L158 Benchmark]: Toolchain (without parser) took 2289.76ms. Allocated memory is still 142.6MB. Free memory was 117.6MB in the beginning and 63.4MB in the end (delta: 54.3MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2024-12-02 05:52:29,285 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:29,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.33ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 107.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 05:52:29,285 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.62ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.5MB in the end (delta: 983.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:29,285 INFO L158 Benchmark]: Boogie Preprocessor took 18.09ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.7MB in the end (delta: 820.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:29,285 INFO L158 Benchmark]: RCFGBuilder took 158.83ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 96.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 05:52:29,286 INFO L158 Benchmark]: BuchiAutomizer took 1922.82ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 63.9MB in the end (delta: 32.6MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-12-02 05:52:29,286 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 63.4MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 05:52:29,288 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.33ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 107.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.62ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.5MB in the end (delta: 983.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.09ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.7MB in the end (delta: 820.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 158.83ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 96.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1922.82ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 63.9MB in the end (delta: 32.6MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 63.4MB in the end (delta: 15.8kB). 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 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * v2) + m) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * v2) + m) and consists of 3 locations. One deterministic module has affine ranking function v1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 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 [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 34 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 05:52:29,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 05:52:29,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 05:52:29,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 05:52:29,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 05:52:30,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bd78c-7395-477f-abd5-3b7900975f44/bin/uautomizer-verify-84ZbGMXZE1/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 Result: TRUE