./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 8fbd99b1bfb27b318d252229087f8d9132096866b72085e8874326b5a6d541b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:13:56,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:13:56,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 21:13:56,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:13:56,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:13:56,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:13:56,848 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:13:56,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:13:56,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:13:56,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:13:56,858 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:13:56,858 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 21:13:56,859 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 21:13:56,861 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 21:13:56,861 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 21:13:56,862 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 21:13:56,862 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 21:13:56,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:13:56,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 21:13:56,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:13:56,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:13:56,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 21:13:56,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 21:13:56,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 21:13:56,866 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:13:56,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:13:56,867 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 21:13:56,867 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:13:56,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:13:56,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:13:56,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:13:56,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:13:56,871 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 21:13:56,871 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_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fbd99b1bfb27b318d252229087f8d9132096866b72085e8874326b5a6d541b4 [2023-11-06 21:13:57,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:13:57,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:13:57,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:13:57,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:13:57,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:13:57,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca-2.i [2023-11-06 21:14:00,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:14:00,779 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:14:00,780 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/sv-benchmarks/c/termination-memory-alloca/GulwaniJainKoskinen-2009PLDI-Fig1-alloca-2.i [2023-11-06 21:14:00,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/data/e82fedd1e/5254c2636ef544d0913f25566ce64958/FLAG46ac5422b [2023-11-06 21:14:00,814 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/data/e82fedd1e/5254c2636ef544d0913f25566ce64958 [2023-11-06 21:14:00,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:14:00,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:14:00,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:00,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:14:00,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:14:00,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:00" (1/1) ... [2023-11-06 21:14:00,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebeb9df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:00, skipping insertion in model container [2023-11-06 21:14:00,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:14:00" (1/1) ... [2023-11-06 21:14:00,895 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:14:01,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:01,228 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:14:01,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:14:01,297 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:14:01,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01 WrapperNode [2023-11-06 21:14:01,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:14:01,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:01,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:14:01,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:14:01,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,355 INFO L138 Inliner]: procedures = 110, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 76 [2023-11-06 21:14:01,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:14:01,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:14:01,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:14:01,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:14:01,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,371 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:14:01,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:14:01,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:14:01,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:14:01,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (1/1) ... [2023-11-06 21:14:01,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:01,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:01,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:01,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 21:14:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:14:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:14:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:14:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:14:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:14:01,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:14:01,591 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:14:01,594 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:14:01,766 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:14:01,772 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:14:01,773 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:14:01,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:01 BoogieIcfgContainer [2023-11-06 21:14:01,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:14:01,776 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 21:14:01,776 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 21:14:01,780 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 21:14:01,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:14:01,781 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 09:14:00" (1/3) ... [2023-11-06 21:14:01,782 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d950d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:14:01, skipping insertion in model container [2023-11-06 21:14:01,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:14:01,783 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:14:01" (2/3) ... [2023-11-06 21:14:01,783 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d950d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:14:01, skipping insertion in model container [2023-11-06 21:14:01,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:14:01,784 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:14:01" (3/3) ... [2023-11-06 21:14:01,785 INFO L332 chiAutomizerObserver]: Analyzing ICFG GulwaniJainKoskinen-2009PLDI-Fig1-alloca-2.i [2023-11-06 21:14:01,869 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 21:14:01,871 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 21:14:01,871 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 21:14:01,871 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 21:14:01,872 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 21:14:01,872 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 21:14:01,872 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 21:14:01,873 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 21:14:01,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:01,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:14:01,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:14:01,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:14:01,905 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 21:14:01,905 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 21:14:01,905 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 21:14:01,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:01,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:14:01,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:14:01,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:14:01,908 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 21:14:01,908 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 21:14:01,916 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_#t~short15#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 9#L552true assume !main_#t~short9#1; 10#L552-2true assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 6#L556-2true [2023-11-06 21:14:01,917 INFO L750 eck$LassoCheckResult]: Loop: 6#L556-2true call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short15#1 := main_#t~mem12#1 != main_#t~mem13#1; 13#L555-1true assume main_#t~short15#1;havoc main_#t~nondet14#1;main_#t~short15#1 := 0 != main_#t~nondet14#1; 4#L555-3true assume !!main_#t~short15#1;havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;havoc main_#t~short15#1;call main_#t~mem16#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem17#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 5#L556true assume !(main_#t~mem16#1 < main_#t~mem17#1);havoc main_#t~mem16#1;havoc main_#t~mem17#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 6#L556-2true [2023-11-06 21:14:01,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:01,923 INFO L85 PathProgramCache]: Analyzing trace with hash 925671, now seen corresponding path program 1 times [2023-11-06 21:14:01,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:01,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527135756] [2023-11-06 21:14:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:01,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:02,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:14:02,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:14:02,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527135756] [2023-11-06 21:14:02,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527135756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:14:02,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:14:02,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:14:02,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864956125] [2023-11-06 21:14:02,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:14:02,163 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 21:14:02,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:02,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1419305, now seen corresponding path program 1 times [2023-11-06 21:14:02,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:02,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901711148] [2023-11-06 21:14:02,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:02,186 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:14:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:02,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:14:02,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:14:02,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:14:02,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:14:02,698 INFO L87 Difference]: Start difference. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) 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) [2023-11-06 21:14:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:14:02,722 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2023-11-06 21:14:02,723 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2023-11-06 21:14:02,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:14:02,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 8 states and 10 transitions. [2023-11-06 21:14:02,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-06 21:14:02,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-06 21:14:02,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2023-11-06 21:14:02,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:14:02,740 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-06 21:14:02,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2023-11-06 21:14:02,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-06 21:14:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:14:02,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-06 21:14:02,767 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-06 21:14:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:14:02,773 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-06 21:14:02,773 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 21:14:02,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-11-06 21:14:02,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-06 21:14:02,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:14:02,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:14:02,776 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-06 21:14:02,776 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 21:14:02,776 INFO L748 eck$LassoCheckResult]: Stem: 40#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~malloc3#1.base, main_#t~malloc3#1.offset, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~mem6#1, main_#t~mem7#1, main_#t~mem8#1, main_#t~short9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~mem11#1, main_#t~mem16#1, main_#t~mem17#1, main_#t~mem18#1, main_#t~mem12#1, main_#t~mem13#1, main_#t~nondet14#1, main_#t~short15#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, main_~id~0#1.base, main_~id~0#1.offset, main_~maxId~0#1.base, main_~maxId~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~id~0#1.base, main_~id~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call main_#t~malloc3#1.base, main_#t~malloc3#1.offset := #Ultimate.allocOnStack(4);main_~maxId~0#1.base, main_~maxId~0#1.offset := main_#t~malloc3#1.base, main_#t~malloc3#1.offset;havoc main_#t~nondet4#1;call write~int(main_#t~nondet4#1, main_~id~0#1.base, main_~id~0#1.offset, 4);havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;call write~int(main_#t~nondet5#1, main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);havoc main_#t~nondet5#1;call main_#t~mem6#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short9#1 := 0 <= main_#t~mem6#1; 43#L552 assume main_#t~short9#1;call main_#t~mem7#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call main_#t~mem8#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4);main_#t~short9#1 := main_#t~mem7#1 < main_#t~mem8#1; 36#L552-2 assume main_#t~short9#1;havoc main_#t~mem6#1;havoc main_#t~mem7#1;havoc main_#t~mem8#1;havoc main_#t~short9#1;call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(4);main_~tmp~0#1.base, main_~tmp~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call main_#t~mem11#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);call write~int(1 + main_#t~mem11#1, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);havoc main_#t~mem11#1; 37#L556-2 [2023-11-06 21:14:02,776 INFO L750 eck$LassoCheckResult]: Loop: 37#L556-2 call main_#t~mem12#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem13#1 := read~int(main_~id~0#1.base, main_~id~0#1.offset, 4);main_#t~short15#1 := main_#t~mem12#1 != main_#t~mem13#1; 42#L555-1 assume main_#t~short15#1;havoc main_#t~nondet14#1;main_#t~short15#1 := 0 != main_#t~nondet14#1; 38#L555-3 assume !!main_#t~short15#1;havoc main_#t~mem12#1;havoc main_#t~mem13#1;havoc main_#t~nondet14#1;havoc main_#t~short15#1;call main_#t~mem16#1 := read~int(main_~tmp~0#1.base, main_~tmp~0#1.offset, 4);call main_#t~mem17#1 := read~int(main_~maxId~0#1.base, main_~maxId~0#1.offset, 4); 39#L556 assume !(main_#t~mem16#1 < main_#t~mem17#1);havoc main_#t~mem16#1;havoc main_#t~mem17#1;call write~int(0, main_~tmp~0#1.base, main_~tmp~0#1.offset, 4); 37#L556-2 [2023-11-06 21:14:02,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:02,778 INFO L85 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2023-11-06 21:14:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041678312] [2023-11-06 21:14:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:02,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:02,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:14:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:02,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:14:02,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:02,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1419305, now seen corresponding path program 2 times [2023-11-06 21:14:02,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:02,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363234449] [2023-11-06 21:14:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:02,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:02,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:14:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:02,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:14:02,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:02,925 INFO L85 PathProgramCache]: Analyzing trace with hash 121353169, now seen corresponding path program 1 times [2023-11-06 21:14:02,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:14:02,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541482380] [2023-11-06 21:14:02,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:14:02,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:14:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:02,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:14:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:14:03,000 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:14:04,378 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 21:14:04,379 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 21:14:04,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 21:14:04,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 21:14:04,379 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 21:14:04,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:04,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 21:14:04,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 21:14:04,380 INFO L133 ssoRankerPreferences]: Filename of dumped script: GulwaniJainKoskinen-2009PLDI-Fig1-alloca-2.i_Iteration2_Lasso [2023-11-06 21:14:04,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 21:14:04,382 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 21:14:04,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:04,415 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:04,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:04,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,184 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,195 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,199 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,240 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 21:14:05,917 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 21:14:05,922 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 21:14:05,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:05,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:05,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:05,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 21:14:05,945 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 [2023-11-06 21:14:05,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:05,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:14:05,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:05,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:05,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:05,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:14:05,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:14:05,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:05,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-06 21:14:05,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:05,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:05,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 21:14:06,006 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 [2023-11-06 21:14:06,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:14:06,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:06,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:14:06,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:14:06,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:06,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,047 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 [2023-11-06 21:14:06,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 21:14:06,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:06,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 21:14:06,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 21:14:06,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 21:14:06,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:06,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,085 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 [2023-11-06 21:14:06,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:06,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 21:14:06,105 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:14:06,105 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:14:06,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:06,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,128 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,133 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 [2023-11-06 21:14:06,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:06,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 21:14:06,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:14:06,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:14:06,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:06,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,190 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 [2023-11-06 21:14:06,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:06,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:14:06,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:14:06,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 21:14:06,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:06,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,230 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,239 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 [2023-11-06 21:14:06,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:06,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 21:14:06,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:14:06,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:14:06,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:06,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,294 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,303 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 [2023-11-06 21:14:06,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 21:14:06,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 21:14:06,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 21:14:06,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 21:14:06,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 21:14:06,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,354 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,366 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 [2023-11-06 21:14:06,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 21:14:06,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 21:14:06,379 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 21:14:06,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 21:14:06,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 21:14:06,414 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-06 21:14:06,414 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-06 21:14:06,463 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 21:14:06,563 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-06 21:14:06,563 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 16 variables to zero. [2023-11-06 21:14:06,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:14:06,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:14:06,595 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:14:06,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 21:14:06,609 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 21:14:06,633 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2023-11-06 21:14:06,633 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 21:14:06,634 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1, v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_1) = 2*v_rep(select (select #memory_int ULTIMATE.start_main_~tmp~0#1.base) ULTIMATE.start_main_~tmp~0#1.offset)_1 - 2*v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_1 + 1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_main_~id~0#1.base) ULTIMATE.start_main_~id~0#1.offset)_1 >= 0, 1*v_rep(select (select #memory_int ULTIMATE.start_main_~maxId~0#1.base) ULTIMATE.start_main_~maxId~0#1.offset)_1 - 1 >= 0] [2023-11-06 21:14:06,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,800 INFO L156 tatePredicateManager]: 26 out of 29 supporting invariants were superfluous and have been removed [2023-11-06 21:14:06,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:14:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:14:06,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 21:14:06,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:14:06,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8900b7e-f14a-4998-9c53-7d160af5b03c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 21:14:06,978 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 21:14:06,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:14:06,988 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-06 21:14:07,010 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-06 21:14:07,026 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:14:07,043 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2023-11-06 21:14:07,058 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:14:43,228 WARN L293 SmtUtils]: Spent 36.12s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 21:14:43,338 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-06 21:15:20,353 WARN L293 SmtUtils]: Spent 36.93s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 21:15:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:20,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 21:15:20,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:15:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:15:20,484 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2023-11-06 21:15:20,485 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:15:20,563 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 3 states. [2023-11-06 21:15:20,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-06 21:15:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:15:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2023-11-06 21:15:20,567 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-06 21:15:20,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:15:20,568 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:15:20,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:15:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:15:20,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 21:15:20,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:15:20,683 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 21:15:20,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:15:20,692 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-06 21:15:20,712 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2023-11-06 21:15:20,736 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:15:20,758 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-06 21:15:20,769 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2023-11-06 21:15:20,775 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-06 21:15:56,885 WARN L293 SmtUtils]: Spent 36.09s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 21:16:09,306 WARN L293 SmtUtils]: Spent 12.20s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 21:16:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:09,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 21:16:09,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:16:09,428 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2023-11-06 21:16:09,428 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:16:21,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 12.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 21:16:21,514 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 4 states. [2023-11-06 21:16:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-06 21:16:21,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:16:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-11-06 21:16:21,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-06 21:16:21,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:16:21,516 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:16:21,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:16:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:16:21,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 21:16:21,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:16:21,613 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-06 21:16:21,622 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:16:21,634 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2023-11-06 21:16:21,643 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:16:21,665 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 21:16:21,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:16:21,676 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-06 21:16:57,842 WARN L293 SmtUtils]: Spent 36.14s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 21:16:57,920 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-06 21:17:46,129 WARN L293 SmtUtils]: Spent 48.11s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 21:17:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:17:46,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 21:17:46,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:17:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:17:46,257 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2023-11-06 21:17:46,257 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:17:46,393 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 13 transitions. Complement of second has 2 states. [2023-11-06 21:17:46,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-11-06 21:17:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:17:46,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 11 transitions. [2023-11-06 21:17:46,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 11 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-06 21:17:46,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 21:17:46,395 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 21:17:46,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:17:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:17:46,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 21:17:46,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:17:46,494 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 32 [2023-11-06 21:17:46,507 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 21 [2023-11-06 21:17:46,518 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2023-11-06 21:17:46,527 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 21:17:46,532 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2023-11-06 21:17:46,542 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-06 21:17:46,563 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 21:17:46,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:17:46,579 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-06 21:18:10,669 WARN L293 SmtUtils]: Spent 24.07s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)