./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX --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 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:58:14,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:58:14,140 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-08 17:58:14,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:58:14,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:58:14,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:58:14,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:58:14,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:58:14,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:58:14,186 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:58:14,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:58:14,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:58:14,188 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:58:14,189 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 17:58:14,189 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 17:58:14,190 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 17:58:14,191 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 17:58:14,191 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 17:58:14,192 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 17:58:14,193 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:58:14,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 17:58:14,194 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:58:14,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:58:14,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 17:58:14,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 17:58:14,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 17:58:14,197 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:58:14,198 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:58:14,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:58:14,198 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 17:58:14,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:58:14,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:58:14,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:58:14,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:58:14,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:58:14,205 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 17:58:14,206 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d [2024-11-08 17:58:14,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:58:14,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:58:14,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:58:14,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:58:14,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:58:14,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c Unable to find full path for "g++" [2024-11-08 17:58:17,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:58:17,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:58:17,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c [2024-11-08 17:58:17,706 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/data/f9446de97/b79de570eeab4c989ddb8a320ee983a5/FLAG4a130fbdc [2024-11-08 17:58:17,724 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/data/f9446de97/b79de570eeab4c989ddb8a320ee983a5 [2024-11-08 17:58:17,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:58:17,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:58:17,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:58:17,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:58:17,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:58:17,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:58:17" (1/1) ... [2024-11-08 17:58:17,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134b0f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:17, skipping insertion in model container [2024-11-08 17:58:17,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:58:17" (1/1) ... [2024-11-08 17:58:17,770 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:58:18,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:58:18,048 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:58:18,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:58:18,082 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:58:18,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18 WrapperNode [2024-11-08 17:58:18,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:58:18,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:58:18,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:58:18,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:58:18,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,103 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,127 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-08 17:58:18,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:58:18,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:58:18,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:58:18,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:58:18,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,157 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 17:58:18,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:58:18,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:58:18,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:58:18,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:58:18,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (1/1) ... [2024-11-08 17:58:18,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:18,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:18,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 17:58:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:58:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:58:18,372 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:58:18,374 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:58:18,470 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-08 17:58:18,471 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:58:18,490 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:58:18,490 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:58:18,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:58:18 BoogieIcfgContainer [2024-11-08 17:58:18,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:58:18,493 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 17:58:18,493 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 17:58:18,498 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 17:58:18,498 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 17:58:18,499 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 05:58:17" (1/3) ... [2024-11-08 17:58:18,500 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27c328ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 05:58:18, skipping insertion in model container [2024-11-08 17:58:18,500 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 17:58:18,501 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:58:18" (2/3) ... [2024-11-08 17:58:18,501 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27c328ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 05:58:18, skipping insertion in model container [2024-11-08 17:58:18,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 17:58:18,502 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:58:18" (3/3) ... [2024-11-08 17:58:18,504 INFO L332 chiAutomizerObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex9.c [2024-11-08 17:58:18,578 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 17:58:18,579 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 17:58:18,579 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 17:58:18,579 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 17:58:18,579 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 17:58:18,579 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 17:58:18,580 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 17:58:18,580 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 17:58:18,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:58:18,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-08 17:58:18,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:58:18,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:58:18,615 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-08 17:58:18,615 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 17:58:18,615 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 17:58:18,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:58:18,617 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-08 17:58:18,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:58:18,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:58:18,618 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-08 17:58:18,619 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 17:58:18,626 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_#t~nondet0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L21-2true [2024-11-08 17:58:18,627 INFO L747 eck$LassoCheckResult]: Loop: 7#L21-2true assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1; 10#L17-1true assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 3#L18true assume main_~q~0#1 < main_~p~0#1;main_~q~0#1 := main_~q~0#1 - 1; 7#L21-2true [2024-11-08 17:58:18,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:18,634 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-08 17:58:18,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:18,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591315764] [2024-11-08 17:58:18,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:18,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:18,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:58:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:18,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:58:18,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:18,796 INFO L85 PathProgramCache]: Analyzing trace with hash 35912, now seen corresponding path program 1 times [2024-11-08 17:58:18,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:18,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922824871] [2024-11-08 17:58:18,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:18,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:18,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:58:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:18,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:58:18,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:18,825 INFO L85 PathProgramCache]: Analyzing trace with hash 28694854, now seen corresponding path program 1 times [2024-11-08 17:58:18,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:18,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745417136] [2024-11-08 17:58:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:18,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:18,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:58:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:18,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:58:18,996 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:58:18,997 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:58:18,997 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:58:18,997 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:58:18,998 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 17:58:18,998 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:18,998 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:58:18,998 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:58:18,998 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration1_Loop [2024-11-08 17:58:18,998 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:58:18,999 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:58:19,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:19,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:19,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:19,174 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:58:19,175 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 17:58:19,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-08 17:58:19,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:58:19,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:58:19,236 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 17:58:19,236 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-08 17:58:19,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-08 17:58:19,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-08 17:58:19,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:58:19,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:58:19,308 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 17:58:19,309 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-08 17:58:19,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-08 17:58:19,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,336 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-08 17:58:19,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:58:19,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:58:19,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:19,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,404 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-08 17:58:19,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 17:58:19,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:58:19,453 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 17:58:19,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:19,458 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:58:19,458 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:58:19,458 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:58:19,458 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:58:19,458 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 17:58:19,458 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,459 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:58:19,459 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:58:19,459 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration1_Loop [2024-11-08 17:58:19,459 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:58:19,459 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:58:19,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:19,468 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:19,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:19,579 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:58:19,586 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 17:58:19,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-08 17:58:19,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-08 17:58:19,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:58:19,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:58:19,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:58:19,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:58:19,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 17:58:19,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 17:58:19,638 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 17:58:19,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:19,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-08 17:58:19,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-08 17:58:19,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:58:19,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:58:19,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:58:19,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:58:19,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 17:58:19,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 17:58:19,704 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 17:58:19,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-08 17:58:19,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,726 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-08 17:58:19,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-08 17:58:19,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:58:19,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 17:58:19,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:58:19,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:58:19,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:58:19,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 17:58:19,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 17:58:19,766 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 17:58:19,774 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-08 17:58:19,774 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 17:58:19,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:19,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:19,780 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:19,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-08 17:58:19,785 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 17:58:19,785 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 17:58:19,786 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 17:58:19,786 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2024-11-08 17:58:19,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-08 17:58:19,821 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 17:58:19,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:58:19,881 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:58:19,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:58:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:58:19,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:58:19,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:58:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:58:20,000 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 [2024-11-08 17:58:20,002 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-11-08 17:58:20,093 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 18 states and 27 transitions. Complement of second has 5 states. [2024-11-08 17:58:20,096 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 [2024-11-08 17:58:20,102 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) [2024-11-08 17:58:20,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-08 17:58:20,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-08 17:58:20,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:58:20,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-08 17:58:20,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:58:20,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-08 17:58:20,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:58:20,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 27 transitions. [2024-11-08 17:58:20,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-08 17:58:20,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 18 transitions. [2024-11-08 17:58:20,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-08 17:58:20,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-11-08 17:58:20,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2024-11-08 17:58:20,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 17:58:20,122 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2024-11-08 17:58:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2024-11-08 17:58:20,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-08 17:58:20,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 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) [2024-11-08 17:58:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-11-08 17:58:20,159 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-08 17:58:20,160 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-11-08 17:58:20,160 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-08 17:58:20,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2024-11-08 17:58:20,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-08 17:58:20,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:58:20,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:58:20,165 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 17:58:20,165 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-08 17:58:20,165 INFO L745 eck$LassoCheckResult]: Stem: 73#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 74#L-1 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_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_#t~nondet0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 77#L21-2 assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1; 75#L17-1 [2024-11-08 17:58:20,165 INFO L747 eck$LassoCheckResult]: Loop: 75#L17-1 assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 66#L18 assume !(main_~q~0#1 < main_~p~0#1); 67#L21 assume main_~p~0#1 < main_~q~0#1;main_~p~0#1 := main_~p~0#1 - 1; 71#L21-2 assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1; 75#L17-1 [2024-11-08 17:58:20,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2024-11-08 17:58:20,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:20,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649717943] [2024-11-08 17:58:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:20,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:58:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:20,189 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:58:20,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:20,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1267193, now seen corresponding path program 1 times [2024-11-08 17:58:20,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:20,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312081647] [2024-11-08 17:58:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:20,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:20,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:58:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:20,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:58:20,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1805953435, now seen corresponding path program 1 times [2024-11-08 17:58:20,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:20,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178400899] [2024-11-08 17:58:20,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:20,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:20,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:58:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:20,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:58:20,333 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:58:20,334 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:58:20,334 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:58:20,334 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:58:20,334 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 17:58:20,334 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,334 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:58:20,334 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:58:20,335 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration2_Loop [2024-11-08 17:58:20,335 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:58:20,335 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:58:20,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:20,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:20,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:20,441 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:58:20,441 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 17:58:20,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:20,445 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:20,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-08 17:58:20,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:58:20,460 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:58:20,496 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 17:58:20,496 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: [] [2024-11-08 17:58:20,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:20,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:20,525 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:20,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-08 17:58:20,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:58:20,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:58:20,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:20,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:20,587 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:20,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-08 17:58:20,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 17:58:20,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:58:20,747 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 17:58:20,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-08 17:58:20,756 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:58:20,756 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:58:20,756 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:58:20,757 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:58:20,757 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 17:58:20,757 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,757 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:58:20,757 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:58:20,757 INFO L132 ssoRankerPreferences]: Filename of dumped script: LeikeHeizmann-TACAS2014-Ex9.c_Iteration2_Loop [2024-11-08 17:58:20,757 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:58:20,757 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:58:20,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:20,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:20,786 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:58:20,865 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:58:20,866 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 17:58:20,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:20,871 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:20,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-08 17:58:20,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-08 17:58:20,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:58:20,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:58:20,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:58:20,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:58:20,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 17:58:20,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 17:58:20,918 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 17:58:20,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:20,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:20,948 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:20,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-08 17:58:20,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-08 17:58:20,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:58:20,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 17:58:20,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:58:20,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:58:20,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:58:20,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 17:58:20,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 17:58:20,981 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 17:58:20,986 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-08 17:58:20,987 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 17:58:20,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:58:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:58:20,990 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:58:20,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-08 17:58:20,995 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 17:58:20,995 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 17:58:20,996 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 17:58:20,996 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = 1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2024-11-08 17:58:21,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:21,026 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 17:58:21,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:58:21,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:58:21,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:58:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:58:21,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:58:21,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:58:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:58:21,143 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 [2024-11-08 17:58:21,144 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-08 17:58:21,251 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 30 states and 40 transitions. Complement of second has 6 states. [2024-11-08 17:58:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-08 17:58:21,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-11-08 17:58:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2024-11-08 17:58:21,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-08 17:58:21,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:58:21,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-08 17:58:21,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:58:21,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-08 17:58:21,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:58:21,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2024-11-08 17:58:21,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-08 17:58:21,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 38 transitions. [2024-11-08 17:58:21,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-08 17:58:21,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2024-11-08 17:58:21,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 38 transitions. [2024-11-08 17:58:21,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 17:58:21,263 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 38 transitions. [2024-11-08 17:58:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 38 transitions. [2024-11-08 17:58:21,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-08 17:58:21,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:58:21,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:21,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-11-08 17:58:21,273 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-08 17:58:21,273 INFO L425 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-11-08 17:58:21,273 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-08 17:58:21,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2024-11-08 17:58:21,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-08 17:58:21,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:58:21,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:58:21,276 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-08 17:58:21,276 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-08 17:58:21,276 INFO L745 eck$LassoCheckResult]: Stem: 160#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~p~0#1, main_~q~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_#t~nondet0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~p~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 162#L21-2 assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1; 163#L17-1 assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 151#L18 [2024-11-08 17:58:21,276 INFO L747 eck$LassoCheckResult]: Loop: 151#L18 assume !(main_~q~0#1 < main_~p~0#1); 152#L21 assume !(main_~p~0#1 < main_~q~0#1); 156#L21-2 assume (main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1; 170#L17-1 assume !!((main_~q~0#1 > 0 && main_~p~0#1 > 0) && main_~p~0#1 != main_~q~0#1); 151#L18 [2024-11-08 17:58:21,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:21,279 INFO L85 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2024-11-08 17:58:21,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:21,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064801484] [2024-11-08 17:58:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:21,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:21,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-08 17:58:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:21,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:58:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:58:21,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:58:21,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:58:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1420555, now seen corresponding path program 1 times [2024-11-08 17:58:21,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:58:21,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500038236] [2024-11-08 17:58:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:58:21,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:58:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:58:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:58:21,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:58:21,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500038236] [2024-11-08 17:58:21,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500038236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:58:21,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:58:21,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:58:21,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047420319] [2024-11-08 17:58:21,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:58:21,399 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-08 17:58:21,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:58:21,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:58:21,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:58:21,403 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:58:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:58:21,455 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-11-08 17:58:21,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2024-11-08 17:58:21,457 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 17:58:21,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2024-11-08 17:58:21,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-08 17:58:21,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-08 17:58:21,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-08 17:58:21,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 17:58:21,458 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:58:21,458 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:58:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:58:21,460 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:58:21,460 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-08 17:58:21,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:58:21,460 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 17:58:21,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-08 17:58:21,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 05:58:21 BoogieIcfgContainer [2024-11-08 17:58:21,473 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 17:58:21,474 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:58:21,474 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:58:21,475 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:58:21,475 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:58:18" (3/4) ... [2024-11-08 17:58:21,482 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:58:21,483 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:58:21,485 INFO L158 Benchmark]: Toolchain (without parser) took 3755.01ms. Allocated memory is still 174.1MB. Free memory was 132.0MB in the beginning and 131.6MB in the end (delta: 402.4kB). Peak memory consumption was 890.2kB. Max. memory is 16.1GB. [2024-11-08 17:58:21,487 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 123.7MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:58:21,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.42ms. Allocated memory is still 174.1MB. Free memory was 131.5MB in the beginning and 120.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 17:58:21,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.34ms. Allocated memory is still 174.1MB. Free memory was 120.5MB in the beginning and 119.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:58:21,490 INFO L158 Benchmark]: Boogie Preprocessor took 41.98ms. Allocated memory is still 174.1MB. Free memory was 119.0MB in the beginning and 117.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:58:21,493 INFO L158 Benchmark]: RCFGBuilder took 319.33ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 108.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 17:58:21,494 INFO L158 Benchmark]: BuchiAutomizer took 2980.83ms. Allocated memory is still 174.1MB. Free memory was 108.5MB in the beginning and 131.6MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:58:21,494 INFO L158 Benchmark]: Witness Printer took 9.43ms. Allocated memory is still 174.1MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:58:21,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 123.7MB. Free memory was 97.8MB in the beginning and 97.7MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.42ms. Allocated memory is still 174.1MB. Free memory was 131.5MB in the beginning and 120.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.34ms. Allocated memory is still 174.1MB. Free memory was 120.5MB in the beginning and 119.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.98ms. Allocated memory is still 174.1MB. Free memory was 119.0MB in the beginning and 117.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.33ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 108.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2980.83ms. Allocated memory is still 174.1MB. Free memory was 108.5MB in the beginning and 131.6MB in the end (delta: -23.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.43ms. Allocated memory is still 174.1MB. Free memory is still 131.6MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function q and consists of 3 locations. One deterministic module has affine ranking function p and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 11 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-08 17:58:21,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_643ade95-20cb-4245-bc5b-92f208366830/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE