./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-simple/nested_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-simple/nested_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya --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 32bit --witnessprinter.graph.data.programhash 6a30debb45adf4eb2040807436dec0136066a492a6c11eb0dbebd1f179f328d9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:36:21,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:36:21,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 06:36:21,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:36:21,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:36:21,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:36:21,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:36:21,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:36:21,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:36:21,135 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:36:21,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:36:21,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:36:21,137 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:36:21,137 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 06:36:21,138 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 06:36:21,138 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 06:36:21,139 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 06:36:21,139 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 06:36:21,140 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 06:36:21,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:36:21,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 06:36:21,142 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:36:21,142 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:36:21,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:36:21,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:36:21,143 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 06:36:21,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 06:36:21,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 06:36:21,145 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:36:21,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:36:21,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:36:21,146 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 06:36:21,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:36:21,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:36:21,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:36:21,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:36:21,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:36:21,148 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 06:36:21,148 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_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a30debb45adf4eb2040807436dec0136066a492a6c11eb0dbebd1f179f328d9 [2023-11-29 06:36:21,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:36:21,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:36:21,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:36:21,383 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:36:21,384 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:36:21,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/loop-simple/nested_3.c [2023-11-29 06:36:24,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:36:24,325 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:36:24,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/sv-benchmarks/c/loop-simple/nested_3.c [2023-11-29 06:36:24,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/data/dd928981c/f386ddac38cc42ec88e5e3a37dd7c5ca/FLAG873c7563d [2023-11-29 06:36:24,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/data/dd928981c/f386ddac38cc42ec88e5e3a37dd7c5ca [2023-11-29 06:36:24,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:36:24,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:36:24,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:36:24,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:36:24,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:36:24,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62356663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24, skipping insertion in model container [2023-11-29 06:36:24,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,379 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:36:24,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:36:24,540 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:36:24,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:36:24,568 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:36:24,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24 WrapperNode [2023-11-29 06:36:24,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:36:24,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:36:24,570 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:36:24,570 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:36:24,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,599 INFO L138 Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2023-11-29 06:36:24,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:36:24,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:36:24,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:36:24,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:36:24,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,624 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 06:36:24,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:36:24,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:36:24,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:36:24,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:36:24,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (1/1) ... [2023-11-29 06:36:24,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:24,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:24,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:24,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 06:36:24,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:36:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:36:24,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:36:24,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:36:24,762 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:36:24,764 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:36:24,852 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:36:24,860 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:36:24,860 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 06:36:24,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:36:24 BoogieIcfgContainer [2023-11-29 06:36:24,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:36:24,863 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 06:36:24,863 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 06:36:24,867 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 06:36:24,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:36:24,868 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:36:24" (1/3) ... [2023-11-29 06:36:24,869 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@696a14d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:36:24, skipping insertion in model container [2023-11-29 06:36:24,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:36:24,870 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:36:24" (2/3) ... [2023-11-29 06:36:24,870 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@696a14d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:36:24, skipping insertion in model container [2023-11-29 06:36:24,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 06:36:24,871 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:36:24" (3/3) ... [2023-11-29 06:36:24,872 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested_3.c [2023-11-29 06:36:24,923 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 06:36:24,923 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 06:36:24,923 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 06:36:24,923 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 06:36:24,923 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 06:36:24,924 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 06:36:24,924 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 06:36:24,924 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 06:36:24,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:24,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-29 06:36:24,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:24,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:24,950 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:36:24,950 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 06:36:24,950 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 06:36:24,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:24,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-29 06:36:24,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:24,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:24,953 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:36:24,953 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 06:36:24,960 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 3#L21-3true [2023-11-29 06:36:24,961 INFO L750 eck$LassoCheckResult]: Loop: 3#L21-3true assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 11#L22-3true assume !(main_~b~0#1 < 6); 13#L21-2true main_#t~pre4#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre4#1; 3#L21-3true [2023-11-29 06:36:24,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 06:36:24,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:24,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195232372] [2023-11-29 06:36:24,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:24,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,081 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:25,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 39933, now seen corresponding path program 1 times [2023-11-29 06:36:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495787886] [2023-11-29 06:36:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:25,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:25,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:25,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495787886] [2023-11-29 06:36:25,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495787886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:36:25,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:36:25,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:36:25,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845985681] [2023-11-29 06:36:25,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:36:25,141 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:36:25,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:25,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:36:25,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:36:25,172 INFO L87 Difference]: Start difference. First operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-29 06:36:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:25,193 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2023-11-29 06:36:25,194 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2023-11-29 06:36:25,196 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-29 06:36:25,199 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 15 transitions. [2023-11-29 06:36:25,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-11-29 06:36:25,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2023-11-29 06:36:25,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-11-29 06:36:25,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:36:25,201 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-11-29 06:36:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-11-29 06:36:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2023-11-29 06:36:25,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2023-11-29 06:36:25,221 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-29 06:36:25,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:36:25,226 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2023-11-29 06:36:25,226 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 06:36:25,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2023-11-29 06:36:25,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-29 06:36:25,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:25,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:25,240 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:36:25,240 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-29 06:36:25,240 INFO L748 eck$LassoCheckResult]: Stem: 44#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 45#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 40#L21-3 [2023-11-29 06:36:25,242 INFO L750 eck$LassoCheckResult]: Loop: 40#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 41#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 43#L23-3 assume !(main_~c~0#1 < 6); 47#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 48#L22-3 assume !(main_~b~0#1 < 6); 46#L21-2 main_#t~pre4#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre4#1; 40#L21-3 [2023-11-29 06:36:25,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,243 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-29 06:36:25,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677265334] [2023-11-29 06:36:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:25,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1191164837, now seen corresponding path program 1 times [2023-11-29 06:36:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743970944] [2023-11-29 06:36:25,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:25,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:25,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:25,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743970944] [2023-11-29 06:36:25,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743970944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:36:25,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:36:25,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:36:25,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620136156] [2023-11-29 06:36:25,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:36:25,300 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:36:25,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:25,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:36:25,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:36:25,301 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:25,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:25,312 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2023-11-29 06:36:25,312 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-11-29 06:36:25,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-11-29 06:36:25,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2023-11-29 06:36:25,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-29 06:36:25,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-29 06:36:25,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2023-11-29 06:36:25,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:36:25,315 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2023-11-29 06:36:25,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2023-11-29 06:36:25,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-11-29 06:36:25,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:25,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2023-11-29 06:36:25,317 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-29 06:36:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:36:25,318 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2023-11-29 06:36:25,318 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-29 06:36:25,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2023-11-29 06:36:25,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-29 06:36:25,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:25,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:25,320 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:36:25,320 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:25,320 INFO L748 eck$LassoCheckResult]: Stem: 70#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 71#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 66#L21-3 [2023-11-29 06:36:25,321 INFO L750 eck$LassoCheckResult]: Loop: 66#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 67#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 72#L23-3 assume !!(main_~c~0#1 < 6); 68#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 69#L23-3 assume !(main_~c~0#1 < 6); 74#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 75#L22-3 assume !(main_~b~0#1 < 6); 73#L21-2 main_#t~pre4#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre4#1; 66#L21-3 [2023-11-29 06:36:25,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,321 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-29 06:36:25,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529047704] [2023-11-29 06:36:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:25,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1993060441, now seen corresponding path program 1 times [2023-11-29 06:36:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562336312] [2023-11-29 06:36:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:25,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:25,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:25,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562336312] [2023-11-29 06:36:25,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562336312] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:25,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313767024] [2023-11-29 06:36:25,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:25,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:25,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:36:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:25,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:36:25,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:25,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:25,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313767024] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:36:25,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:36:25,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-29 06:36:25,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772422700] [2023-11-29 06:36:25,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:25,507 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:36:25,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:25,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:36:25,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:36:25,508 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:25,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:25,535 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2023-11-29 06:36:25,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2023-11-29 06:36:25,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-29 06:36:25,536 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 18 transitions. [2023-11-29 06:36:25,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-11-29 06:36:25,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-11-29 06:36:25,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 18 transitions. [2023-11-29 06:36:25,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:36:25,538 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-29 06:36:25,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 18 transitions. [2023-11-29 06:36:25,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-29 06:36:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.125) internal successors, (18), 15 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) [2023-11-29 06:36:25,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-11-29 06:36:25,540 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-29 06:36:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:36:25,542 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-11-29 06:36:25,542 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-29 06:36:25,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2023-11-29 06:36:25,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-29 06:36:25,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:25,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:25,543 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:36:25,544 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 1, 1, 1, 1, 1, 1] [2023-11-29 06:36:25,544 INFO L748 eck$LassoCheckResult]: Stem: 147#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 143#L21-3 [2023-11-29 06:36:25,544 INFO L750 eck$LassoCheckResult]: Loop: 143#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 144#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 149#L23-3 assume !!(main_~c~0#1 < 6); 145#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 146#L23-3 assume !!(main_~c~0#1 < 6); 158#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 157#L23-3 assume !!(main_~c~0#1 < 6); 156#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 155#L23-3 assume !!(main_~c~0#1 < 6); 154#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 153#L23-3 assume !(main_~c~0#1 < 6); 151#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 152#L22-3 assume !(main_~b~0#1 < 6); 150#L21-2 main_#t~pre4#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre4#1; 143#L21-3 [2023-11-29 06:36:25,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2023-11-29 06:36:25,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265453368] [2023-11-29 06:36:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:25,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:25,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1917011795, now seen corresponding path program 2 times [2023-11-29 06:36:25,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:25,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749686743] [2023-11-29 06:36:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:25,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:25,619 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:36:25,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:25,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749686743] [2023-11-29 06:36:25,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749686743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:25,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802054587] [2023-11-29 06:36:25,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:36:25,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:25,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:25,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:25,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:36:25,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:36:25,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:36:25,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:36:25,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:25,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:25,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802054587] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:36:25,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:36:25,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 10 [2023-11-29 06:36:25,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628835537] [2023-11-29 06:36:25,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:25,824 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:36:25,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:25,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:36:25,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:36:25,825 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. cyclomatic complexity: 3 Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2023-11-29 06:36:25,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:25,993 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2023-11-29 06:36:25,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 53 transitions. [2023-11-29 06:36:25,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2023-11-29 06:36:25,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 53 transitions. [2023-11-29 06:36:25,996 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2023-11-29 06:36:25,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2023-11-29 06:36:25,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 53 transitions. [2023-11-29 06:36:25,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:36:25,997 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 53 transitions. [2023-11-29 06:36:25,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 53 transitions. [2023-11-29 06:36:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35. [2023-11-29 06:36:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 34 states have internal predecessors, (38), 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) [2023-11-29 06:36:26,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2023-11-29 06:36:26,001 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-11-29 06:36:26,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 06:36:26,002 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-11-29 06:36:26,003 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-29 06:36:26,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 38 transitions. [2023-11-29 06:36:26,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2023-11-29 06:36:26,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:26,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:26,005 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:36:26,005 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [12, 12, 2, 2, 2, 1, 1, 1] [2023-11-29 06:36:26,005 INFO L748 eck$LassoCheckResult]: Stem: 327#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 328#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 323#L21-3 [2023-11-29 06:36:26,005 INFO L750 eck$LassoCheckResult]: Loop: 323#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 324#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 348#L23-3 assume !!(main_~c~0#1 < 6); 347#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 346#L23-3 assume !!(main_~c~0#1 < 6); 345#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 344#L23-3 assume !!(main_~c~0#1 < 6); 343#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 342#L23-3 assume !!(main_~c~0#1 < 6); 341#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 340#L23-3 assume !!(main_~c~0#1 < 6); 339#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 338#L23-3 assume !!(main_~c~0#1 < 6); 337#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 336#L23-3 assume !(main_~c~0#1 < 6); 333#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 330#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 331#L23-3 assume !!(main_~c~0#1 < 6); 325#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 326#L23-3 assume !!(main_~c~0#1 < 6); 329#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 357#L23-3 assume !!(main_~c~0#1 < 6); 356#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 355#L23-3 assume !!(main_~c~0#1 < 6); 354#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 353#L23-3 assume !!(main_~c~0#1 < 6); 352#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 351#L23-3 assume !!(main_~c~0#1 < 6); 350#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 349#L23-3 assume !(main_~c~0#1 < 6); 335#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 334#L22-3 assume !(main_~b~0#1 < 6); 332#L21-2 main_#t~pre4#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre4#1; 323#L21-3 [2023-11-29 06:36:26,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2023-11-29 06:36:26,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:26,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77889525] [2023-11-29 06:36:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:26,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:26,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:26,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1010871677, now seen corresponding path program 3 times [2023-11-29 06:36:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:26,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129518010] [2023-11-29 06:36:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:36:26,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:36:26,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129518010] [2023-11-29 06:36:26,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129518010] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:36:26,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716746023] [2023-11-29 06:36:26,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:36:26,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:36:26,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:26,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:36:26,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:36:26,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-11-29 06:36:26,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:36:26,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:26,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:36:26,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:36:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 06:36:26,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716746023] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:36:26,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:36:26,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-29 06:36:26,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443440514] [2023-11-29 06:36:26,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:36:26,316 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-29 06:36:26,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:36:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:36:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:36:26,317 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. cyclomatic complexity: 4 Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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) [2023-11-29 06:36:26,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:36:26,367 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2023-11-29 06:36:26,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 102 transitions. [2023-11-29 06:36:26,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2023-11-29 06:36:26,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 95 states and 102 transitions. [2023-11-29 06:36:26,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2023-11-29 06:36:26,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2023-11-29 06:36:26,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 102 transitions. [2023-11-29 06:36:26,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:36:26,373 INFO L218 hiAutomatonCegarLoop]: Abstraction has 95 states and 102 transitions. [2023-11-29 06:36:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 102 transitions. [2023-11-29 06:36:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-11-29 06:36:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.0736842105263158) internal successors, (102), 94 states have internal predecessors, (102), 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) [2023-11-29 06:36:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 102 transitions. [2023-11-29 06:36:26,381 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 102 transitions. [2023-11-29 06:36:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:36:26,382 INFO L428 stractBuchiCegarLoop]: Abstraction has 95 states and 102 transitions. [2023-11-29 06:36:26,382 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-29 06:36:26,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 102 transitions. [2023-11-29 06:36:26,384 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 93 [2023-11-29 06:36:26,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:26,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:26,386 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 06:36:26,386 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [36, 36, 6, 6, 6, 1, 1, 1] [2023-11-29 06:36:26,386 INFO L748 eck$LassoCheckResult]: Stem: 660#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 661#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 656#L21-3 [2023-11-29 06:36:26,386 INFO L750 eck$LassoCheckResult]: Loop: 656#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 657#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 662#L23-3 assume !!(main_~c~0#1 < 6); 658#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 659#L23-3 assume !!(main_~c~0#1 < 6); 747#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 745#L23-3 assume !!(main_~c~0#1 < 6); 743#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 741#L23-3 assume !!(main_~c~0#1 < 6); 739#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 737#L23-3 assume !!(main_~c~0#1 < 6); 735#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 733#L23-3 assume !!(main_~c~0#1 < 6); 731#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 730#L23-3 assume !(main_~c~0#1 < 6); 664#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 665#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 750#L23-3 assume !!(main_~c~0#1 < 6); 749#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 748#L23-3 assume !!(main_~c~0#1 < 6); 746#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 744#L23-3 assume !!(main_~c~0#1 < 6); 742#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 740#L23-3 assume !!(main_~c~0#1 < 6); 738#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 736#L23-3 assume !!(main_~c~0#1 < 6); 734#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 732#L23-3 assume !!(main_~c~0#1 < 6); 729#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 728#L23-3 assume !(main_~c~0#1 < 6); 727#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 726#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 725#L23-3 assume !!(main_~c~0#1 < 6); 724#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 723#L23-3 assume !!(main_~c~0#1 < 6); 722#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 721#L23-3 assume !!(main_~c~0#1 < 6); 720#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 719#L23-3 assume !!(main_~c~0#1 < 6); 718#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 717#L23-3 assume !!(main_~c~0#1 < 6); 716#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 715#L23-3 assume !!(main_~c~0#1 < 6); 714#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 713#L23-3 assume !(main_~c~0#1 < 6); 712#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 711#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 710#L23-3 assume !!(main_~c~0#1 < 6); 709#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 708#L23-3 assume !!(main_~c~0#1 < 6); 707#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 706#L23-3 assume !!(main_~c~0#1 < 6); 705#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 704#L23-3 assume !!(main_~c~0#1 < 6); 703#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 702#L23-3 assume !!(main_~c~0#1 < 6); 701#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 700#L23-3 assume !!(main_~c~0#1 < 6); 699#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 698#L23-3 assume !(main_~c~0#1 < 6); 697#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 696#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 695#L23-3 assume !!(main_~c~0#1 < 6); 694#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 693#L23-3 assume !!(main_~c~0#1 < 6); 692#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 691#L23-3 assume !!(main_~c~0#1 < 6); 690#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 689#L23-3 assume !!(main_~c~0#1 < 6); 688#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 687#L23-3 assume !!(main_~c~0#1 < 6); 686#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 685#L23-3 assume !!(main_~c~0#1 < 6); 684#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 683#L23-3 assume !(main_~c~0#1 < 6); 682#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 681#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 667#L23-3 assume !!(main_~c~0#1 < 6); 680#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 679#L23-3 assume !!(main_~c~0#1 < 6); 678#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 677#L23-3 assume !!(main_~c~0#1 < 6); 676#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 675#L23-3 assume !!(main_~c~0#1 < 6); 674#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 673#L23-3 assume !!(main_~c~0#1 < 6); 672#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 671#L23-3 assume !!(main_~c~0#1 < 6); 670#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 669#L23-3 assume !(main_~c~0#1 < 6); 668#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 666#L22-3 assume !(main_~b~0#1 < 6); 663#L21-2 main_#t~pre4#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre4#1; 656#L21-3 [2023-11-29 06:36:26,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 6 times [2023-11-29 06:36:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601825474] [2023-11-29 06:36:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:26,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:26,396 INFO L85 PathProgramCache]: Analyzing trace with hash -655757187, now seen corresponding path program 4 times [2023-11-29 06:36:26,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:26,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621735879] [2023-11-29 06:36:26,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:26,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:26,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1993610245, now seen corresponding path program 1 times [2023-11-29 06:36:26,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:26,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309784795] [2023-11-29 06:36:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:26,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,502 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:26,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:27,462 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:27,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:27,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:27,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:27,463 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:36:27,463 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:27,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:27,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop [2023-11-29 06:36:27,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:27,464 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:27,477 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,483 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,544 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:27,544 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:36:27,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 06:36:27,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:27,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:27,575 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:36:27,575 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre5#1=0} Honda state: {ULTIMATE.start_main_#t~pre5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:36:27,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:27,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 06:36:27,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:27,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:27,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:36:27,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre6#1=0} Honda state: {ULTIMATE.start_main_#t~pre6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:36:27,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 06:36:27,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,606 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 06:36:27,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:27,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:27,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:36:27,623 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre4#1=0} Honda state: {ULTIMATE.start_main_#t~pre4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:36:27,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:27,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,627 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 06:36:27,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:27,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:27,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:27,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,645 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-29 06:36:27,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:36:27,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:27,671 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:36:27,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-29 06:36:27,675 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:27,675 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:27,675 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:27,675 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:27,676 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:36:27,676 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,676 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:27,676 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:27,676 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop [2023-11-29 06:36:27,676 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:27,676 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:27,677 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,680 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,689 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:27,733 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:27,738 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:36:27,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,740 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-29 06:36:27,743 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 [2023-11-29 06:36:27,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:27,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:27,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:27,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:27,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:27,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:27,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:27,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:36:27,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-29 06:36:27,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,766 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-29 06:36:27,770 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 [2023-11-29 06:36:27,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:27,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:27,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:27,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:27,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:27,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:27,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:27,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:36:27,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-11-29 06:36:27,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,791 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-29 06:36:27,799 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 [2023-11-29 06:36:27,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:27,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:27,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:27,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:27,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:27,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:27,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:27,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:36:27,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-29 06:36:27,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,818 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-29 06:36:27,821 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 [2023-11-29 06:36:27,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:27,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:27,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:27,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:27,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:27,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:27,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:27,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:36:27,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-29 06:36:27,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,841 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-29 06:36:27,851 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 [2023-11-29 06:36:27,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:27,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:27,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:27,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:27,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:27,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:27,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:27,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:36:27,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-11-29 06:36:27,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,876 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-29 06:36:27,879 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 [2023-11-29 06:36:27,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:27,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:27,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:27,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:27,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:27,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:27,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:27,896 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:36:27,899 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:36:27,900 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 06:36:27,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:27,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:27,903 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:27,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-29 06:36:27,906 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:36:27,906 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:36:27,906 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:36:27,906 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 11 Supporting invariants [] [2023-11-29 06:36:27,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-29 06:36:27,914 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:36:27,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:27,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:27,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:27,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:27,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:28,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1527 trivial. 0 not checked. [2023-11-29 06:36:28,433 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 [2023-11-29 06:36:28,434 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 102 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-29 06:36:28,470 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 102 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 188 states and 203 transitions. Complement of second has 4 states. [2023-11-29 06:36:28,471 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 [2023-11-29 06:36:28,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2023-11-29 06:36:28,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-29 06:36:28,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 93 letters. [2023-11-29 06:36:28,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:28,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 95 letters. Loop has 93 letters. [2023-11-29 06:36:28,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:28,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 186 letters. [2023-11-29 06:36:28,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:28,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 203 transitions. [2023-11-29 06:36:28,484 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 25 [2023-11-29 06:36:28,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 187 states and 202 transitions. [2023-11-29 06:36:28,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2023-11-29 06:36:28,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2023-11-29 06:36:28,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 202 transitions. [2023-11-29 06:36:28,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:36:28,487 INFO L218 hiAutomatonCegarLoop]: Abstraction has 187 states and 202 transitions. [2023-11-29 06:36:28,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 202 transitions. [2023-11-29 06:36:28,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 111. [2023-11-29 06:36:28,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.09009009009009) internal successors, (121), 110 states have internal predecessors, (121), 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) [2023-11-29 06:36:28,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2023-11-29 06:36:28,496 INFO L240 hiAutomatonCegarLoop]: Abstraction has 111 states and 121 transitions. [2023-11-29 06:36:28,496 INFO L428 stractBuchiCegarLoop]: Abstraction has 111 states and 121 transitions. [2023-11-29 06:36:28,496 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-29 06:36:28,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 121 transitions. [2023-11-29 06:36:28,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-29 06:36:28,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:28,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:28,498 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 06:36:28,498 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 1, 1, 1] [2023-11-29 06:36:28,498 INFO L748 eck$LassoCheckResult]: Stem: 1251#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 1252#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 1243#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 1245#L22-3 [2023-11-29 06:36:28,498 INFO L750 eck$LassoCheckResult]: Loop: 1245#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 1253#L23-3 assume !!(main_~c~0#1 < 6); 1247#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 1248#L23-3 assume !!(main_~c~0#1 < 6); 1353#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 1352#L23-3 assume !!(main_~c~0#1 < 6); 1351#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 1350#L23-3 assume !!(main_~c~0#1 < 6); 1349#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 1348#L23-3 assume !!(main_~c~0#1 < 6); 1347#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 1346#L23-3 assume !!(main_~c~0#1 < 6); 1345#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 1344#L23-3 assume !(main_~c~0#1 < 6); 1257#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 1245#L22-3 [2023-11-29 06:36:28,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,499 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2023-11-29 06:36:28,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:28,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304750324] [2023-11-29 06:36:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:28,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:28,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,508 INFO L85 PathProgramCache]: Analyzing trace with hash -706979195, now seen corresponding path program 1 times [2023-11-29 06:36:28,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:28,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871678009] [2023-11-29 06:36:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:28,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,519 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:28,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,519 INFO L85 PathProgramCache]: Analyzing trace with hash 855328031, now seen corresponding path program 1 times [2023-11-29 06:36:28,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:28,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189170167] [2023-11-29 06:36:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:28,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:28,593 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:28,593 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:28,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:28,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:28,593 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:36:28,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:28,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:28,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop [2023-11-29 06:36:28,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:28,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:28,595 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,602 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,604 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,606 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,634 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:28,635 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:36:28,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:28,637 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:28,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-29 06:36:28,644 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:28,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:28,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-11-29 06:36:28,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:28,663 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:28,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-29 06:36:28,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:36:28,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:28,692 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:36:28,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-29 06:36:28,696 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:28,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:28,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:28,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:28,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:36:28,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:28,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:28,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop [2023-11-29 06:36:28,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:28,697 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:28,698 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,703 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:28,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:28,745 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:36:28,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:28,746 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:28,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-29 06:36:28,752 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 [2023-11-29 06:36:28,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:28,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:28,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:28,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:28,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:28,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:28,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:28,768 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:36:28,771 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:36:28,771 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 06:36:28,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:28,772 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:28,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-29 06:36:28,775 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:36:28,776 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:36:28,776 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:36:28,776 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11 Supporting invariants [] [2023-11-29 06:36:28,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2023-11-29 06:36:28,780 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:36:28,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:28,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:28,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:28,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:28,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:28,875 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:36:28,875 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 [2023-11-29 06:36:28,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 121 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-29 06:36:28,902 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 121 transitions. cyclomatic complexity: 12. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 320 states and 348 transitions. Complement of second has 7 states. [2023-11-29 06:36:28,902 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 [2023-11-29 06:36:28,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2023-11-29 06:36:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-29 06:36:28,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 15 letters. [2023-11-29 06:36:28,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:28,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 18 letters. Loop has 15 letters. [2023-11-29 06:36:28,904 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:28,904 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 30 letters. [2023-11-29 06:36:28,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:28,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 348 transitions. [2023-11-29 06:36:28,909 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2023-11-29 06:36:28,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 233 states and 254 transitions. [2023-11-29 06:36:28,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2023-11-29 06:36:28,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2023-11-29 06:36:28,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 254 transitions. [2023-11-29 06:36:28,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:36:28,913 INFO L218 hiAutomatonCegarLoop]: Abstraction has 233 states and 254 transitions. [2023-11-29 06:36:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 254 transitions. [2023-11-29 06:36:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 129. [2023-11-29 06:36:28,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.1007751937984496) internal successors, (142), 128 states have internal predecessors, (142), 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) [2023-11-29 06:36:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2023-11-29 06:36:28,922 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 142 transitions. [2023-11-29 06:36:28,922 INFO L428 stractBuchiCegarLoop]: Abstraction has 129 states and 142 transitions. [2023-11-29 06:36:28,922 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-29 06:36:28,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 142 transitions. [2023-11-29 06:36:28,923 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2023-11-29 06:36:28,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:28,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:28,924 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-29 06:36:28,924 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 06:36:28,924 INFO L748 eck$LassoCheckResult]: Stem: 1760#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 1761#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 1751#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 1753#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 1757#L23-3 [2023-11-29 06:36:28,924 INFO L750 eck$LassoCheckResult]: Loop: 1757#L23-3 assume !!(main_~c~0#1 < 6); 1756#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 1757#L23-3 [2023-11-29 06:36:28,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,924 INFO L85 PathProgramCache]: Analyzing trace with hash 925771, now seen corresponding path program 1 times [2023-11-29 06:36:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:28,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408071152] [2023-11-29 06:36:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:28,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:28,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1795, now seen corresponding path program 1 times [2023-11-29 06:36:28,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:28,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315160482] [2023-11-29 06:36:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:28,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:28,938 INFO L85 PathProgramCache]: Analyzing trace with hash 889666765, now seen corresponding path program 1 times [2023-11-29 06:36:28,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:28,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748014521] [2023-11-29 06:36:28,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:28,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:28,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:28,958 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:28,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:28,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:28,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:28,958 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:36:28,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,958 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:28,958 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:28,958 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop [2023-11-29 06:36:28,958 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:28,959 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:28,959 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:28,980 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:28,980 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:36:28,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:28,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:28,982 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:28,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-29 06:36:28,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:28,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:28,999 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:36:28,999 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre6#1=0} Honda state: {ULTIMATE.start_main_#t~pre6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:36:29,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2023-11-29 06:36:29,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,004 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-29 06:36:29,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:29,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:29,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-11-29 06:36:29,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,023 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-29 06:36:29,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:36:29,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:29,048 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:36:29,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-29 06:36:29,051 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:29,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:29,051 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:29,051 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:29,052 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:36:29,052 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:29,052 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:29,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop [2023-11-29 06:36:29,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:29,052 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:29,053 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:29,075 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:36:29,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,076 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-29 06:36:29,086 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 [2023-11-29 06:36:29,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:29,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:29,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:29,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:29,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:29,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:29,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:29,102 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:36:29,105 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:36:29,105 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 06:36:29,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,107 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-29 06:36:29,109 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:36:29,109 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:36:29,109 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:36:29,109 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = -2*ULTIMATE.start_main_~c~0#1 + 11 Supporting invariants [] [2023-11-29 06:36:29,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-29 06:36:29,113 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:36:29,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,147 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:29,159 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 [2023-11-29 06:36:29,160 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 142 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 142 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180 states and 199 transitions. Complement of second has 7 states. [2023-11-29 06:36:29,185 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 [2023-11-29 06:36:29,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-29 06:36:29,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-29 06:36:29,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-29 06:36:29,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-29 06:36:29,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 199 transitions. [2023-11-29 06:36:29,189 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2023-11-29 06:36:29,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 160 states and 175 transitions. [2023-11-29 06:36:29,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-29 06:36:29,191 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-29 06:36:29,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 175 transitions. [2023-11-29 06:36:29,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:36:29,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 160 states and 175 transitions. [2023-11-29 06:36:29,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 175 transitions. [2023-11-29 06:36:29,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 129. [2023-11-29 06:36:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.0930232558139534) internal successors, (141), 128 states have internal predecessors, (141), 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) [2023-11-29 06:36:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 141 transitions. [2023-11-29 06:36:29,198 INFO L240 hiAutomatonCegarLoop]: Abstraction has 129 states and 141 transitions. [2023-11-29 06:36:29,198 INFO L428 stractBuchiCegarLoop]: Abstraction has 129 states and 141 transitions. [2023-11-29 06:36:29,199 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-11-29 06:36:29,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 141 transitions. [2023-11-29 06:36:29,200 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2023-11-29 06:36:29,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:29,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:29,200 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 2, 1, 1, 1, 1, 1] [2023-11-29 06:36:29,200 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-29 06:36:29,201 INFO L748 eck$LassoCheckResult]: Stem: 2110#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 2111#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 2101#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 2103#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 2112#L23-3 assume !!(main_~c~0#1 < 6); 2108#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 2109#L23-3 assume !!(main_~c~0#1 < 6); 2228#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 2226#L23-3 assume !!(main_~c~0#1 < 6); 2224#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 2222#L23-3 assume !!(main_~c~0#1 < 6); 2220#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 2218#L23-3 assume !!(main_~c~0#1 < 6); 2216#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 2214#L23-3 assume !!(main_~c~0#1 < 6); 2211#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 2210#L23-3 assume !(main_~c~0#1 < 6); 2207#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 2147#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 2107#L23-3 [2023-11-29 06:36:29,201 INFO L750 eck$LassoCheckResult]: Loop: 2107#L23-3 assume !!(main_~c~0#1 < 6); 2106#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 2107#L23-3 [2023-11-29 06:36:29,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,201 INFO L85 PathProgramCache]: Analyzing trace with hash 745365203, now seen corresponding path program 2 times [2023-11-29 06:36:29,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:29,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904849949] [2023-11-29 06:36:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:29,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:29,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1795, now seen corresponding path program 2 times [2023-11-29 06:36:29,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:29,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972517755] [2023-11-29 06:36:29,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:29,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:29,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -963577515, now seen corresponding path program 3 times [2023-11-29 06:36:29,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:29,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918161430] [2023-11-29 06:36:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:29,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:29,243 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:29,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:29,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:29,244 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:29,244 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:36:29,244 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,244 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:29,244 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:29,244 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop [2023-11-29 06:36:29,244 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:29,244 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:29,245 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,266 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:29,266 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:36:29,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,267 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-29 06:36:29,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:29,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:29,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 06:36:29,286 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre6#1=0} Honda state: {ULTIMATE.start_main_#t~pre6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 06:36:29,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-29 06:36:29,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,291 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-29 06:36:29,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:29,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:29,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-11-29 06:36:29,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,314 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-29 06:36:29,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:36:29,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:29,343 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:36:29,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-29 06:36:29,346 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:29,346 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:29,346 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:29,347 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:29,347 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:36:29,347 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,347 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:29,347 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:29,347 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop [2023-11-29 06:36:29,347 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:29,347 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:29,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:29,369 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:36:29,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,371 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-29 06:36:29,374 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 [2023-11-29 06:36:29,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:29,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:29,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:29,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:29,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:29,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:29,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:29,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-29 06:36:29,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:29,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,396 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-29 06:36:29,397 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 [2023-11-29 06:36:29,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:29,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:29,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:29,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:29,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:29,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:29,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:29,414 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:36:29,416 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:36:29,416 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 06:36:29,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,419 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-29 06:36:29,424 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:36:29,424 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:36:29,424 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:36:29,424 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = -2*ULTIMATE.start_main_~c~0#1 + 11 Supporting invariants [] [2023-11-29 06:36:29,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-29 06:36:29,427 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:36:29,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,476 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:29,489 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 [2023-11-29 06:36:29,489 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,508 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 176 states and 193 transitions. Complement of second has 7 states. [2023-11-29 06:36:29,508 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 [2023-11-29 06:36:29,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-29 06:36:29,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 19 letters. Loop has 2 letters. [2023-11-29 06:36:29,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,509 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 06:36:29,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,554 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:29,567 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 06:36:29,568 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,585 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 176 states and 193 transitions. Complement of second has 7 states. [2023-11-29 06:36:29,585 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 [2023-11-29 06:36:29,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-11-29 06:36:29,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 19 letters. Loop has 2 letters. [2023-11-29 06:36:29,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,586 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 06:36:29,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:29,634 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:29,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:36:29,646 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 06:36:29,646 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 129 states and 141 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 200 states and 221 transitions. Complement of second has 6 states. [2023-11-29 06:36:29,667 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 [2023-11-29 06:36:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:36:29,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-29 06:36:29,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 2 letters. [2023-11-29 06:36:29,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 21 letters. Loop has 2 letters. [2023-11-29 06:36:29,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 4 letters. [2023-11-29 06:36:29,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:29,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 200 states and 221 transitions. [2023-11-29 06:36:29,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-29 06:36:29,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 200 states to 112 states and 121 transitions. [2023-11-29 06:36:29,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-11-29 06:36:29,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-29 06:36:29,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 112 states and 121 transitions. [2023-11-29 06:36:29,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-29 06:36:29,674 INFO L218 hiAutomatonCegarLoop]: Abstraction has 112 states and 121 transitions. [2023-11-29 06:36:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states and 121 transitions. [2023-11-29 06:36:29,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2023-11-29 06:36:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 1.0810810810810811) internal successors, (120), 110 states have internal predecessors, (120), 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) [2023-11-29 06:36:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 120 transitions. [2023-11-29 06:36:29,679 INFO L240 hiAutomatonCegarLoop]: Abstraction has 111 states and 120 transitions. [2023-11-29 06:36:29,679 INFO L428 stractBuchiCegarLoop]: Abstraction has 111 states and 120 transitions. [2023-11-29 06:36:29,679 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2023-11-29 06:36:29,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 120 transitions. [2023-11-29 06:36:29,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-29 06:36:29,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 06:36:29,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 06:36:29,684 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [36, 36, 6, 6, 6, 2, 1, 1, 1, 1] [2023-11-29 06:36:29,684 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 6, 1, 1, 1] [2023-11-29 06:36:29,684 INFO L748 eck$LassoCheckResult]: Stem: 3015#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 3016#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre6#1, main_#t~pre5#1, main_#t~pre4#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0; 3009#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 3010#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3119#L23-3 assume !!(main_~c~0#1 < 6); 3118#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3117#L23-3 assume !!(main_~c~0#1 < 6); 3115#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3113#L23-3 assume !!(main_~c~0#1 < 6); 3111#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3109#L23-3 assume !!(main_~c~0#1 < 6); 3107#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3105#L23-3 assume !!(main_~c~0#1 < 6); 3103#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3101#L23-3 assume !!(main_~c~0#1 < 6); 3098#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3097#L23-3 assume !(main_~c~0#1 < 6); 3023#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3020#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3019#L23-3 assume !!(main_~c~0#1 < 6); 3013#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3014#L23-3 assume !!(main_~c~0#1 < 6); 3116#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3114#L23-3 assume !!(main_~c~0#1 < 6); 3112#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3110#L23-3 assume !!(main_~c~0#1 < 6); 3108#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3106#L23-3 assume !!(main_~c~0#1 < 6); 3104#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3102#L23-3 assume !!(main_~c~0#1 < 6); 3100#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3099#L23-3 assume !(main_~c~0#1 < 6); 3096#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3095#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3094#L23-3 assume !!(main_~c~0#1 < 6); 3093#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3092#L23-3 assume !!(main_~c~0#1 < 6); 3091#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3090#L23-3 assume !!(main_~c~0#1 < 6); 3089#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3088#L23-3 assume !!(main_~c~0#1 < 6); 3087#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3086#L23-3 assume !!(main_~c~0#1 < 6); 3085#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3084#L23-3 assume !!(main_~c~0#1 < 6); 3083#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3082#L23-3 assume !(main_~c~0#1 < 6); 3081#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3080#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3079#L23-3 assume !!(main_~c~0#1 < 6); 3078#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3077#L23-3 assume !!(main_~c~0#1 < 6); 3076#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3075#L23-3 assume !!(main_~c~0#1 < 6); 3074#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3073#L23-3 assume !!(main_~c~0#1 < 6); 3072#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3071#L23-3 assume !!(main_~c~0#1 < 6); 3070#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3069#L23-3 assume !!(main_~c~0#1 < 6); 3068#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3067#L23-3 assume !(main_~c~0#1 < 6); 3066#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3065#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3064#L23-3 assume !!(main_~c~0#1 < 6); 3063#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3062#L23-3 assume !!(main_~c~0#1 < 6); 3061#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3060#L23-3 assume !!(main_~c~0#1 < 6); 3059#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3058#L23-3 assume !!(main_~c~0#1 < 6); 3057#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3056#L23-3 assume !!(main_~c~0#1 < 6); 3055#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3054#L23-3 assume !!(main_~c~0#1 < 6); 3053#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3052#L23-3 assume !(main_~c~0#1 < 6); 3051#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3050#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3027#L23-3 assume !!(main_~c~0#1 < 6); 3049#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3048#L23-3 assume !!(main_~c~0#1 < 6); 3047#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3046#L23-3 assume !!(main_~c~0#1 < 6); 3044#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3042#L23-3 assume !!(main_~c~0#1 < 6); 3040#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3038#L23-3 assume !!(main_~c~0#1 < 6); 3036#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3034#L23-3 assume !!(main_~c~0#1 < 6); 3031#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3030#L23-3 assume !(main_~c~0#1 < 6); 3028#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3026#L22-3 assume !(main_~b~0#1 < 6); 3021#L21-2 main_#t~pre4#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre4#1; 3011#L21-3 assume !!(main_~a~0#1 < 6);main_~b~0#1 := 0; 3012#L22-3 [2023-11-29 06:36:29,685 INFO L750 eck$LassoCheckResult]: Loop: 3012#L22-3 assume !!(main_~b~0#1 < 6);main_~c~0#1 := 0; 3017#L23-3 assume !!(main_~c~0#1 < 6); 3018#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3045#L23-3 assume !!(main_~c~0#1 < 6); 3043#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3041#L23-3 assume !!(main_~c~0#1 < 6); 3039#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3037#L23-3 assume !!(main_~c~0#1 < 6); 3035#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3033#L23-3 assume !!(main_~c~0#1 < 6); 3032#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3029#L23-3 assume !!(main_~c~0#1 < 6); 3025#L23-2 main_#t~pre6#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre6#1; 3024#L23-3 assume !(main_~c~0#1 < 6); 3022#L22-2 main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1; 3012#L22-3 [2023-11-29 06:36:29,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1672375441, now seen corresponding path program 2 times [2023-11-29 06:36:29,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:29,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153629093] [2023-11-29 06:36:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:29,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:29,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-29 06:36:29,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-29 06:36:29,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:29,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash -706979195, now seen corresponding path program 2 times [2023-11-29 06:36:29,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:29,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913566443] [2023-11-29 06:36:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:29,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:29,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:29,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1669350057, now seen corresponding path program 3 times [2023-11-29 06:36:29,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:36:29,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623203566] [2023-11-29 06:36:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:36:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:36:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:36:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:36:29,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:36:29,864 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:29,865 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:29,865 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:29,865 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:29,865 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 06:36:29,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:29,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:29,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop [2023-11-29 06:36:29,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:29,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:29,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,877 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,903 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:29,903 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 06:36:29,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,904 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-29 06:36:29,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 06:36:29,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:29,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:29,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,920 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-29 06:36:29,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 06:36:29,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 06:36:29,943 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 06:36:29,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-29 06:36:29,945 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 06:36:29,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 06:36:29,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 06:36:29,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 06:36:29,946 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 06:36:29,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 06:36:29,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 06:36:29,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop [2023-11-29 06:36:29,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 06:36:29,946 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 06:36:29,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,954 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 06:36:29,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 06:36:29,973 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 06:36:29,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,974 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-29 06:36:29,976 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 [2023-11-29 06:36:29,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 06:36:29,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 06:36:29,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 06:36:29,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 06:36:29,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 06:36:29,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 06:36:29,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 06:36:29,989 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 06:36:29,991 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 06:36:29,991 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-29 06:36:29,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 06:36:29,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:36:29,992 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 06:36:29,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-29 06:36:29,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 06:36:29,996 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 06:36:29,996 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 06:36:29,996 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11 Supporting invariants [] [2023-11-29 06:36:29,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-29 06:36:30,000 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 06:36:30,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:30,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:30,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:30,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:30,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:36:30,229 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 [2023-11-29 06:36:30,229 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:36:30,248 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 290 states and 314 transitions. Complement of second has 7 states. [2023-11-29 06:36:30,248 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 [2023-11-29 06:36:30,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:36:30,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-29 06:36:30,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 96 letters. Loop has 15 letters. [2023-11-29 06:36:30,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:30,250 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 06:36:30,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:30,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:30,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:30,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:30,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:36:30,459 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 06:36:30,459 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:36:30,477 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 290 states and 314 transitions. Complement of second has 7 states. [2023-11-29 06:36:30,477 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 [2023-11-29 06:36:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:36:30,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-11-29 06:36:30,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 96 letters. Loop has 15 letters. [2023-11-29 06:36:30,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:30,479 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-29 06:36:30,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:36:30,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-29 06:36:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:30,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:36:30,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:36:30,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:36:30,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:36:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 06:36:30,699 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-29 06:36:30,699 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:36:30,725 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 120 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 212 states and 230 transitions. Complement of second has 6 states. [2023-11-29 06:36:30,726 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 [2023-11-29 06:36:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-29 06:36:30,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2023-11-29 06:36:30,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 96 letters. Loop has 15 letters. [2023-11-29 06:36:30,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:30,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 111 letters. Loop has 15 letters. [2023-11-29 06:36:30,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:30,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 96 letters. Loop has 30 letters. [2023-11-29 06:36:30,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 06:36:30,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 212 states and 230 transitions. [2023-11-29 06:36:30,730 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 06:36:30,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 212 states to 0 states and 0 transitions. [2023-11-29 06:36:30,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 06:36:30,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 06:36:30,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 06:36:30,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:36:30,731 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:36:30,731 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:36:30,731 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:36:30,731 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2023-11-29 06:36:30,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:36:30,731 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 06:36:30,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 06:36:30,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:36:30 BoogieIcfgContainer [2023-11-29 06:36:30,738 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 06:36:30,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:36:30,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:36:30,739 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:36:30,739 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:36:24" (3/4) ... [2023-11-29 06:36:30,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 06:36:30,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:36:30,741 INFO L158 Benchmark]: Toolchain (without parser) took 6391.02ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 94.5MB in the beginning and 103.5MB in the end (delta: -8.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-29 06:36:30,742 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:36:30,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.14ms. Allocated memory is still 132.1MB. Free memory was 94.5MB in the beginning and 84.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 06:36:30,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.81ms. Allocated memory is still 132.1MB. Free memory was 84.5MB in the beginning and 83.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:36:30,743 INFO L158 Benchmark]: Boogie Preprocessor took 33.64ms. Allocated memory is still 132.1MB. Free memory was 83.1MB in the beginning and 81.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:36:30,743 INFO L158 Benchmark]: RCFGBuilder took 227.95ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 71.9MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:36:30,743 INFO L158 Benchmark]: BuchiAutomizer took 5874.65ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 71.9MB in the beginning and 103.5MB in the end (delta: -31.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:36:30,744 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 159.4MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:36:30,745 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.14ms. Allocated memory is still 132.1MB. Free memory was 94.5MB in the beginning and 84.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.81ms. Allocated memory is still 132.1MB. Free memory was 84.5MB in the beginning and 83.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.64ms. Allocated memory is still 132.1MB. Free memory was 83.1MB in the beginning and 81.5MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 227.95ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 71.9MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5874.65ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 71.9MB in the beginning and 103.5MB in the end (delta: -31.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 159.4MB. Free memory is still 103.5MB. 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 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function ((-2 * a) + 11) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * b) + 11) and consists of 4 locations. One deterministic module has affine ranking function ((-2 * c) + 11) and consists of 4 locations. One nondeterministic module has affine ranking function ((-2 * c) + 11) and consists of 4 locations. One nondeterministic module has affine ranking function ((-2 * b) + 11) and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 11 iterations. TraceHistogramMax:36. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 4. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 230 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1599/1599 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 156 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 123 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI5 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-29 06:36:30,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:36:30,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:36:31,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 06:36:31,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6aa8b0e-3082-4c2a-a51f-f5004865f465/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE